Insects

Insect Index 2016 - 2023 - Landscape and Nursery IPM Alert (previous reports posted back to 2018)

INSECTS: Pests and Predators (and mites, spiders, ticks, and slugs)
(in some cases, plant hosts are listed in parenthesis)
*denotes predator/beneficial

A B C D E F G H K L M N P S T W

INSECTS/ MITES	DATE OF REPORT
A
Adelgid, cooley spruce	23Jun09
Adelgid, hemlock woolly	23Apr07, 23Mar17, 23Mar02 (and resistant trees) 22Aug12, 22May06, 22Apr29, 22Apr01 21Jan15 20May15, 20May01, 20Mar27 19Jun28 18Apr27 17Apr14, 17Apr07 16Oct14, 16Jul15, 16Jun03, 16Apr22
Adelgid, pine bark	23Jul28, 23Jun23, 23Mar31 (and lady beetles) 21Oct29, 21Jun04, 21Apr23 20Apr24, 20Apr03 18May04 16Apr29
Ants	22Apr29 (on peony flowers) 19May03 (as disruptors of biocontrol)
Ants, as predators*	19Apr26
Ant, citronella, citrus, yellow or lemon	17Apr21
Ant, fire	18May11
Ant, velvet (a wasp)*	22Aug12 20Aug28 17Aug18
Antlion*	19Jul26
Aphids	23Aug11 (aphids), 23Jun16 (lamb's ear), 23Jun09, 23Jun02, 23May26 (roses and river birches), 23May19 (hellebores and river birches), 23May12, 23May05 (and lady beetles, syrphid fly larva), 23Apr28 (and lady beetles), 23Apr21 (on roses), 23Apr14, 23Apr07 (maple) 22Jul22 (Tilia), 22Jun03 (black gum), 22Apr29 (on hellebore) 21Oct22, 21Jun04, 21May28 (and beneficials), 21May21, 21May14, 21May07, 21Apr09, 21Feb12 20May29 (on roses), 20May22, 20May15, 20Mar05 (early season activity) 19Aug16, 19Jun28 (and beneficials), 19May24 (and beneficials), 19Apr26 (elms) 18May04 17Aug11 (on holly), 17July07 (on tomato), 17Jun16, 17May26, 17May12, 17Apr28, 17Apr14, 17Mar24 16Jul08 (predators), 16Jun10, 16May20 (beneficial of the week), 16May13 (and predators), 16Apr22, 16Mar25 (control on trees)
Aphid, beech blight	23Feb15 (and sooty mold) 22Sep30, 22Aug26 21Sep03 20Nov24 (and "weird" sooty mold), 20Oct23
Aphid, cherry	22Jun10 18Jun01
Aphid, crapemyrtle	23Oct20, 23Jul14, 23May26, 23May05 22Jul15, 22Apr29 21Aug13, 21Aug13, 21Jul02, 21Apr30 20Aug07, 20Jul02, 20Jun12 19Sep13, 19Aug23, 19May10 18Sep14, 18May18 17Sep29, 17Jul21, 17Jun23, 17Jun16, 17May05 16Jul15
Aphid, giant bark	23Oct27, 23Jul28 21Apr30 20Oct23 19Jun07 17Oct13
Aphid, giant willow	23May19, 23Apr21
Aphid, hellebore (and entomopathogenic fungus)	21Feb12 16Jul08
Aphid, honeysuckle	20Jul17
Aphid, lily	23Jun30 21Feb12 17Jun16
Aphid, oleander	23Aug25 22Aug05, 22Jun24 20Sep18, 20Jun26 19Aug30, 19Aug23 17Aug18
Aphid, root	22Jul15
Aphid, rose	18Apr20 17Apr14
Aphid, rosy apple	16Apr15
Aphid, spiny witchhazel gall	23Apr14 22Apr22 21Apr23 20Apr10 18May04 17Apr21 16Jul01, 16Apr22
Aphid, spirea	23May26 22May20, 22May06 20May08 19May10
Aphid, tuliptree	20Oct23 19Jun14 17Jun16
Aphid, viburnum	22May06
Aphid, white pine	23Jun02, 23Mar31 18Jun15
Aphid, woolly	21Aug27 20Oct30 (pyracantha), 20May08 (hawthorn) 19Apr26 (hawthorn) 18May04 (hawthorn) 16Apr22 (hawthorn)
Aphid, woolly alder	21Oct22 20Oct23 19Oct25, 19Oct11
Aphid, woolly apple	22May06 20Apr17 19Aug30 18Aug31 17Jul14 16Oct21, 16Oct07
Aphid, woolly beech	20Jun05 16Oct07
Aphid, woolly elm	23Apr14 20Apr24 18May25, 18May11
Arthropods and their benefits	16Mar18 15Mar20
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Bagworm	23Oct20, 23Aug25, 23Jul21, 23Jul14, 23Jun30, 23Jun16, 23Jun09, 23Jun02 (hatch) 22Jul29, 22Jul22, 22Jul15, 22Jul08, 22Jun24, 22Jun17, 22Jun03 (hatch), 22May27 21Sep10, 21Aug27, 21Jul23, 21Jul16, 21Jul02, 21Jun25, 21Jun11, 21May28, 21May21 20Nov24, 20Aug07, 20Jul31, 20Jul17 (trial with drones), 20Jul10, 20Jul02 (biocontrol), 20Jul02, 20Jun19, 20Jun12, 20Jun05 19Sep20, 19Jun28, 19Jun21, 19Jun14 18Aug31, 18Jul13, 18Jun22, 18May25 17Aug25, 17Jul28, 17Jul14, 17Jun30, 17Jun23, 17Jun16, 17Jun09, 17Jun02, 17Mar24 16Aug19 (roses), 16Jul15, 16Jun17, 16Jun10, 16Jun03
Barklice*	22Jul08 19Sep13, 19Jul12 18Sep21, 18Jun29
Bees	23Sep15 (,beehives) 23Mar02 21Jul09 (and honeydew)
Bee, black and gold	19Jul12
Bee, bumble	20May29 17Mar31
Bee, carpenter	17Sep15 (beneficial) 16Apr01
Bee, Eastern carpenter* (beneficial)	17Apr14
Bee, giant resin	16Jul22, 16Jul15
Bee, green*	16Aug12
Bee, ground nesting*	21Apr09 20May22 18May11 17Apr21 16Apr08
Bee, honey* (a potential biological control for varroa mite)	20Apr10 (swarms)
Bee, leafcutter	23Sep08 20Jul17, 20Jun12 19Aug30, 19Jun07 18May25
Bee, mason*	23Mar24 16Mar25
Bee, mining*	22Apr08 20Mar20 19May10
Bee, plasterer*	22May13
Bee, solitary*	19Apr05
Bee, sweat*	21Jul09
Beetle, ambrosia	23Sep01, 23Jun02, 23May19, 23May05, 23Apr28, 23Apr21, 23Apr14, 23Apr07, 23Mar31 22Sep02, 22Jul15, 22Jul08, 22May27, 22May20, 22May13, 22Apr22, 22Apr15, 22Apr08, 22Apr01, 22Mar25, 22Mar09 21Oct15, 21Sep24, 21Aug27, 21Jul09, 21Jun25, 21Jun18, 21Jun11, 21May28, 21May21, 21May14, 21May10, 21Apr30, 21Apr23, 21April12, 21Apr09, 21Mar12 20Sep04, 20Aug14, 20Aug07, 20Jul17, 20Jul02, 20Jun19, 20Jun05, 20May22, 20May18, 20May15, 20May08, 20May05, 20May01, 20Apr24, 20Apr21, 20Apr17, 20Apr10, 20Apr07, 20Apr03, 20Mar31, 20Mar27, 20Mar18 19Sep06, 19Aug30, 19Aug23, 19Jul26, 19Jul19, 19Jun07, 19May17, 19May03, 19Apr26, 19Apr12, 19Apr05 18Oct12, 18Sep28, 18Sep14, 18Aug31, 18Aug03, 18Jul27, 18Jun22, 18Jun08, 18Jun01, 18May25, 18May18, 18May11, 18May04, 18Apr27, 18Apr20, 18Apr13 17Aug11, 17May26, 17May19, 17May05, 17Apr28, 17Apr21, 17Apr14, 17Apr07, 17Mar31, 17Mar17 16Sep16, 16Sep09, 16Aug12, 16Jul22, 16Jun10, 16Jun03, 16May20, 16May13, 16May06, 16Apr29, 16Apr22, 16Apr15, 16Apr08, 16Apr01, 16Mar25
Beetle, ambrosia (Xyleborus mongraphus)	20Aug28 (only found in California at this time)
Beetle, Ant-mimic Longhorned	17Apr14
Beetle, Asiatic garden	23Jul21
Beetle, bess	20May29
Beetle, big eyed click (predator)	20Jul31
Beetle, blister	21Apr30 20May01 19Aug16 18Sep21 17May12, 17Apr21
Beetle, bombardier	18Jul06
Beetle, burying	17Apr21
Beetle, camphor	23Sep08, 23Sep01, 23Apr28 21Jul09 19Sep20
Beetle, carrion	18Sep21
Beetle, checkered	20Oct16 19Oct18
Beetle, click	20Jun26 18Jun15 16Jun24
Beetle, darkling	20Jul31
Beetle, elephant stag	23Jun30
Beetle, elm leaf	23Apr28 22Aug26 20Aug07 18Jul13
Beetle, Fiery searcher* (Predator)	22May27 19Apr12 17Apr21
Beetle, flower longhorn	19Jul26 17Jun30
Beetle, golden tortoise	22Jul08 17Jun09
Beetle, green June	22Jul29 19Jul12 18Jun29 17July07 16Jul08
Beetle, ground (predator)*	23Oct27 20Oct02 16Oct14
Beetle, hercules	23Aug11 22Jul22, 22Jul08 21Jul16 19Jul26, 19Jun28 16Oct21
Beetle, imported willow leaf	22Jul22 20May29 16Apr08
Beetle, Japanese	23Jul21, 23Jun30, 23Jun23, 23Jun16 (first adults seen) 22Jul29, 22Jul22, 22Jul08, 22Jun24, 22Jun17 21Jul23, 21Jul16, 21Jul09, 21Jun25, 21Jun18 20Jul31, 20Jul10, 20Jul02, 20Jun26, 20Jun19 19Jul12, 19Jun21, 19Jun14 18Jul27, 18Jul13, 18Jul06, 18Jun29, 18Jun22, 18Jun15, 18Jun08 17Jul14, 17July07, 17Jun30, 17Jun23, 17Jun16 16Jul15, 16Jul08, 16Jul01, 16Jun24, 16Jun17
Beetle, lady bird* (predator)	23Nov30, 23Oct27, 23Jun30, 23Jun23, 23Jun16, 23Jun09, 23Jun02, 23May12, 23Apr21, 23Jan24 22Oct21 (crapemyrtle bark scale), 22Jun24, 22Jun10 (larvae), 22May27, 22Apr08 21Oct29, 21Sep10, 21Mar12 20Oct16 (feeding on scale), 20Jun19 19Jul12 18Jun15, 18Jun08, 18Jun01 16May27 (Hyperaspis)
Beetle, lady bird* (Hyperaspis)	23Aug04 21May14
Beetle, lady bird - spider mite destroyer*	17May19 16Sep16
Beetle, yellow tipped lady bird*	16Jul01
Beetle, lightning bug (firefly)	21Oct08 20Jun12
Beetle, multi-colored Asian lady	20Oct23 19Oct25 18Oct05
Beetle, oriental	23Jul21 20Jun19 16Jun24
Beetle, pleasing fungus (feeds on woody bracket fungi)	17Apr28
Beetle, redbud borer	23Jun09
Beetle, redheaded flea	23Sep01
Beetle, red-legged Buprestis	19Jul19
Beetle, red milkweed	22Jul22
Beetle, rove*	18Jul20
Beetle, seedcorn	20Sep11 (golf greens)
Beetle, scarab	23Jul21 18Jul06 17Apr07
Beetle, six spotted green metallic* (predator)	23May12 21Apr16 20Apr10 18Apr27 16Jun03, 16Apr01
Beetle, soldier	21Oct15 (velvetwom-larval stage), 21Jul16 16Oct21 (larva)
Beetle, stag	19Jul19
Beetle, swamp milkweed	21Jun25
Beetle, tooth-necked fungus* (predator)	17May19
Beetle, twice-stabbed* (predator)	22Sep02 21Jun11 18Oct12, 18Apr13
Beetle, viburnum leaf	22Apr29 19Sep13, 19Jun28 18May11 17Jun23, 17Jun16, 17May12
Beetle, willow leaf	19Apr26 16May20
Beetle, wood boring (Agrilus carpini)	22Apr15
Beneficial insects*	23Mar17 (and plant selection) 22Jul15 (slug predators), 22Jun10 (on cup plant), 22Jun03 (many on cup plant), 22May13 (soldier beetles and assassin bugs) 19Aug02 (conserving beneficials - using Silphium perfoliatum, cup plant) 16Nov04 (how insects survive the winter)
Borer, Asian longhorned	21Aug13 (time to check trees)
Borer, banded ash* (beneficial)	17Apr07
Borer, banded ash clearwing	20May29 (damage) 17Sep29
Borer, China fir	18Apr27
Borer, dogwood	16Sep02
Borer, elder shoot	23Apr28 22May13 18May25
Borer, emerald ash	23Apr07 (new trap) 22Jun10, 22May20 21Jul09, 21May07 (and black locust bloom time) 20Oct30 (dead trees) 19May03 18Jul13, 18Jun29, 18Jun22, 18Jun08, 18May18, 18May11 17Jun09, 17Jun02, 17May26 16Oct07 (spring vs fall treatments), 16Aug26 (egg parasitoid - Oobius agrili), 16Jul15, 16Jun24, 16Jun10
Borer, emerald ash (predators and parasitoids)	20Jul02, 20May29 19Jul19 17Apr28, 17Apr14
Borer, flat headed apple tree	18Jul20 16Jul15, 16Mar18
Borer, hickory	21Oct01
Borer, ivory-marked longhorned beetle	20Jul24
Borer, lesser peachtree	16Jun03, 16May27
Borer, lilac/ash	23May19, 23Apr28 22Jun10, 22May06 20Jun19 18May25 17Apr28 16Jun10, 16Jun03, 16May27, 16Apr29
Borer, locust	22May20 17Sep29 16Sep30
Borer, longhorned	17Jul14
Borer, main peachtree	23Jun30, 23Jun09 20Jul10 (damage), 20Jul02, 20Jun05 19Jun21 18Jul13, 18Jun22 17Jul14 16Jul01
Borer, maple petiole	23Apr28 22May20 21May14 20Jul24 19Sep13, 19Jun14 18May25 17May05
Borer, maple tip	16May20
Borer, peachtree	23Oct06, 23Jul21, 23Apr21, 23Apr14 21Jun25 20Jul31 (damage), 20Jun19, 20Jun12 19Oct25, 19Jul19, 19Jul12, 19Jun28, 19Jun07 18Jul27 17Jun23
Borer, redheaded ash	20May29 17May12 16Jul01, 16Apr29
Borer, red oak	16Jun03
Borer, squash vine	21Jun18
Borer, stalk (Papaipema nebris)	16May20 (elderberry)
Borer, twolined chestnut	19Jun07
Borer, Unusual surface bark borer	18Apr13
Bug, ambush* (predator)	20Sep25
Bug, andromeda (pieris) lace	22May06 21Apr23 20Apr17 16Aug12, 16May13
Bug, assassin (predator)	23Apr21 (hatch) 22May27, 22May20 21Oct29 (orange assassin bug), 21Oct15, 21Sep24 (orange assassin bug), 21Apr30 20May22 (orange assassin bug) 19Aug23, 19Aug02, 19Jun07 18May25, 18May18 (hatch) 17July07, 17Jun09 16Oct28, 16Oct21, 16Jun17, 16Apr29
Bug, azalea lace	23Jun30, 23Jun16, 23May12 22Apr29 20Oct09 19Apr26 18Apr27 16May20
Bug, azalea plant* (predator)	20Apr24
Bug, basswood/linden lace	20May15 19Jun21 (and lady bird beetles)
Bug, big-eyed	23Aug04
Bug, boxelder	23Oct27 21Jul02, 21Jun18 20Oct02 17Oct13 16Sep09, 16Mar18
Bug, harlequin	22Apr29
Bug, brown marmorated stink	22Oct21, 22Jun17 (parasitoids of BMSB eggs), 22May20 21Sep24 20Jun05 19Oct04, 19Sep20 18Sep28, 18May18, 18Apr06 17Sep29 16Oct21, 16Sep23
Bug, chinch	23Jul21 20Sep18 19Jul26 18Sep07
Bug, damsel	20Oct09
Bug, Florida predatory stink	23Oct06, 23Sep29 21Oct29, 21Sep03 17Oct13 16Jul15
Bug, four-lined plant	23May12 22Jun03, 22May27, 22May20 21May21 20Jun19, 20May29 19May10 18Jun01 17Jun09, 17May26 16May20
Bug, green assassin*	17Jun23
Bug, green stink	18Jul20 17Sep29
Bug, goldenrain tree (or red-shouldered)	20Nov13 16Aug12
Bug, harlequin	19Sep13, 19Aug16 16Sep23
Bug, hawthorn lace	22Aug26 22May13 20Oct16 16Aug12
Bug, honeylocust plant	23May12 22Apr29 21May28 (damage), 21May14, 21May07 18May11 17Apr28
Bug, jagged ambush*	23Aug25
Bug, Japanese plant*	23Apr28 20Apr17 (predator of azalea lace bug)
Bug, lace	23Jul21, 23May05 22Jul22 21Sep10, 21Jul16 20Sep18 19Jul26 (on Tilia tomentosa) 18Oct19 (resistance to imidicloprid), 18Oct12 (resistance to imidicloprid), 18Jul20 (oaks & lindens), 18Jul13 (sycamore) (azaleas and pieris), 18Jun08 17Sep01, 17Jun30, 17May19, 17May05, 17Apr14 (pieris) 16Sep23 (serviceberry)
Bug, leaffooted	20Jul02 18Oct05, 18May25 17Sep01 16Aug26, 16Aug12
Bug, milkweed	23Aug25 21Oct01, 21Jul09 20Sep18, 20Aug14 19Sep26 17Aug18
Bug, milkweed assassin*	18Aug24
Bug, minute pirate*	22Jun24 19Sep20 17Sep29
Bug, oak lace	21May21 20Sep04, 20Jun26 19Aug16
Bug, orange assassin	23Jul14, 23Apr14
Bug, phlox plant	17Jun02
Bug, plant (Neolygus vitticollis), on maple	23May19 22Jun03
Bug, pieris	19Apr12
Bug, plant*	18Jul13
Bug, scentless plant	17Sep29
Bug, small milkweed (Lygaeus kalmii)	16Sep09 (feeding on a monarch caterpillar)
Bug, sow	18May25
Bug, spined soldier*	19Aug30, 19Jun07 17Jun09
Bug, stilt	22Jul08
Bug, sycamore assassin*	20Apr24
Bug, sycamore lace	20Oct16
Bug, tarnished plant	23Apr28 19Jul26
Bug, wheel (assassin)* (predator)	21May14, 20Sep04, 20Jul17, 20Jun12, 20Jun05, 20May22, 20Apr03 19Sep13
Bug, yucca	23Sep29 18Jun22 17May05 16Sep02
Butterfly, Baltimore checkerspot	16Sep30
Butterfly, eastern tiger swallowtail	16Oct21
Butterfly, giant swallowtail	19Sep20
Butterfly, monarch	22Sep02, 22May20 21Sep03, 21Aug27, 21Aug20 19Oct04 17Jun02
Butterfly, mourning cloak	19May24
Butterfly populations	20Jul31, 20Jul24
Butterfly, variegated fritillary (pupa)	17Jun23
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Cankerworm	16May20
Carpenterworm	18Jun29
Caterpillars - good or bad?	23Aug11 18Jun08
Caterpillar on boxwood (not in US)	17Jul21
Caterpillar, American dagger	20Sep11
Caterpillar, asimina webworm	20Aug28
Caterpillar, barberry looper	16Oct14
Caterpillar, black swallowtail	23Jul14 19Aug30, 19Aug09, 19Jul26 17July07 16Aug12
Caterpillar, brown hooded owlet	Caterpillar, black swallowtail
Caterpillar, camouflaged looper	20Aug07
Caterpillar, Canadian owlet moth	19Aug02
Caterpillar, casebearer	23Sep29 20Jul17
Caterpillar, catalpa sphinx (hornworm)	23Aug25, 23Jul28, 23Jun09 22Jul22, 22Jun17 21Sep10 (parasitized), 21Jul23, 21Jul16, 21Jun18 20Sep11 (parasitized), 20Jul02 19Sep13, 19Jul19, 19Jun14 18Aug17, 18Jul27, 18Jun08 17Sep15, 17Aug04, 17Jul28, 17Jul21 16Sep30
Caterpillar, cecropia moth	23Aug25 20Aug21, 20Aug07 19Jul26
Caterpillar, checkered fringe	20Sep11
Caterpillar, chestnut chizura	17Oct13
Caterpillar, China Mark Moth	22Jul08
Caterpillar, cutworm	20Oct23
Caterpillar, Eastern tent	23Apr21, 23Apr14 22Apr22, 22Apr01 21Apr30, 21Apr23 20Apr17, 20Apr10 19May17, 19May03 17Apr21, 17Apr07, 17Mar31, 17Mar17 (egg hatch) 16Jun10, 16May13, 16Apr22, 16Apr01, 16Mar25, 16Mar18
Caterpillar, euonymus	22May20 20May22 19May10 17May05
Caterpillar, euonymus leaf-notcher (Pryeria sinica)	23Apr21 21May07 20Apr10 19May10 17Mar17 16Apr22, 16Apr08
Caterpillar, fall armyworms	22Jul29, 22Mar25 21Oct22, 21Oct15, 21Sep24, 21Sep17, 21Sep10, 21Sep03, 21Aug30, 21Aug27
Caterpillar, fern leaffolder	21Jul23 20Jun05
Caterpillar, genista broom moth	12Aug24, 12Aug10, 12Jul27 (Baptisia)
Caterpillar, greenstriped	19Jun14
Caterpillar, haploa	22Oct28 18Sep28
Caterpillar, hibiscus leaf moth	20Sep11
Caterpillar, hickory horned devil	23Aug11 (and moth)
Caterpillar, hickory tussock moth	22Sep02 18Jul27
Caterpillar, hydrangea leaftier	17Apr28 16Apr29
Caterpillar, imperial moth	20Sep11 19Sep13 18Sep21
Caterpillar, Io moth	20Jul24 19Aug02
Caterpillar, leaffolder	19Sep06 (oak), 19Aug30, 19May17 17Jun23
Caterpillar, leafroller	18Oct05
Caterpillar, leopard moth	17Apr21
Caterpillar, locust twig borer	22Aug12
Caterpillar, luna moth	17Sep01
Caterpillar, milkweed tussock moth	23Jul28, 23Jul14 22Sep02, 22Aug05
Caterpillar, monarch	23Aug25 22Aug12, 22Aug05 19Aug30, 19May17 18Jul06 17Sep01 16Sep02 (feeding on honeyvine milkweed - Cynanchum laeve)
Caterpillar, orangestriped oakworm	23Sep01, 23Aug25, 23Aug04, 23Jun16 22Jul29 21Sep10, 21Aug27 20Aug21 (parasitic wasps), 20Aug14, 20Jul24, 20Jul17 19Sep13, 19Aug16, 19Aug09, 19Aug02 (fed on by spined solider bug), 19Jul26, 19Jul12 18Aug17, 18Jul20 17Aug18, 17Aug04, 17Jul28 16Aug19, 16Aug12, 16Jul29, 16Jul22
Caterpillar, Oriental fruit moth	23Jun16
Caterpillar, paddle dagger moth	18Oct12
Caterpillar, predaceous (Laetilia coccidivora)	22Sep30 20Sep04 18Oct19
Caterpillar, pipevine	16Sep09
Caterpillar, puss	23Sep15 21Sep17 20Sep04, 20Aug14
Caterpillar (Pyrausta inornatalis)	20Sep25 (on salvia)
Caterpillar, question mark	20Aug14
Caterpillar, redbud leaffolder	19Aug23, 19Aug02
Caterpillar, redhumped	22Jul29 19Aug09 16Aug19, 16Aug12
Caterpillar, ribbed cocoon-maker (Bucculatrix sp.)	22Aug05
Caterpillar, saddleback	23Sep15 20Aug14, 20Aug07 18Aug24 17Sep29, 17Sep01, 17Aug25 16Aug26, 16Aug19
Caterpillar, skiff moth	18Sep21
Caterpillar, slug	18Aug03
Caterpillar, spiny elm	19Aug02
Caterpillars, stinging	21Aug13 19Sep06
Caterpillar, tobacco budworm	18Sep21
Caterpillar, tobacco hornworm	20Sep11 19Sep06, 19Jul12 18Jul13
Caterpillar, tortricid	23Jun02 19Aug30 (beech)
Caterpillar, tussock moth	19Sep06, 19Jul26 18Aug17 17Oct13
Caterpillar, unicorn moth	22Oct28
Caterpillar, variable oakleaf	18Aug03 17July07
Caterpillar, walnut	19Sep13, 19Aug09
Caterpillar, wavy-lined Heterocampa	20Jul10
Caterpillar, white-blotched heterocampa	16Sep16
Caterpillar, white flannel moth	23Aug04 18Aug31
Caterpillar, white-lined sphinx	16Sep16
Caterpillar, white-marked tussock moth	22Aug05 18Jun15
Caterpillar, woolly bear	17Aug18
Caterpillar, yellow bear	19Jun28
Caterpillar, yellownecked	23Aug04 22Jul29 21Sep17 18Jul27
Centipedes	20Apr03
Cicada, dog day (annual)	23Aug25 22Sep02 21Aug27 20Aug28, 20Jul24 19May10 18Aug31
Cicada, periodical	23Jul21, 23Jun16 (what is coming 2024), 23May26 (out of sync) 22May13 (damage from 2021) 21Apr09 20Sep18, 20Jun12, 20Jun05, 20May29 (a few emergence reports) 18May25 17Jun09, 17Jun02, 17May26, 17May19
Cicada, periodical (Brood X 17-year emergence and damage in following year)	22Jul08, 22Jun03 21Jul16, 21Jul02, 21Jun25, 21Jun18, 21Jun11, 21Jun04, 21May28, 21May21 (activity and predators), 21May14, 21May10, 21May07, 21Apr30, 21Apr23, 21Apr16, 21Feb26 21Mar12
Cicada, periodical (Brood V)	16May27 (western MD and other areas)
Cicada, periodical (Brood VI)	17May12
Chiggers	19Jul12
Cricket, snowy tree	23Oct20 19Aug30 17Sep15
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Daddy long-legs	21Jun25
Dobsonfly	22Jun24 20Jun12, 20May29 17Jun30
Dragonfly (predator)*	19Sep26, 19Sep20 (swarms), 19Sep13 (swarms), 19Jun21
Dustywings* (predator)	22Jul29 17May26 16Jun03
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Earwigs	22Apr22 17Jul14 (beneficial)
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Fly, bee	23Apr07 18May11
Fly, big-headed*	17Aug11
Fly, black	18Sep28
Fly, black soldier*	21May28
Fly, crane	20Oct09 (giant crane fly), 20May15 (phantom crane fly) 18Aug17, 18Jun08
Fly, dance	16Apr29
Fly, fire	18Jun08* 17Jun16
Fly, golden-backed snipe	23Jun02
Fly, longlegged*	21Jul02 17Aug25
Fly, march	20May29 19Sep06
Fly, picture winged	19Oct25
Fly, predator midges	16Jul08
Fly, robber*	20Aug21 18Aug17 16Jun24 (bumble bee mimic)
Fly, seed corn (maggots)	16May06 (how they are killed by a fungus)
Fly, silver*	23May26 20May01
Fly, spotted winged drosophila	20Jul02
Fly, syrphid (aka hover or flower fly)	23Sep15, 23Jun09 22Jul22 (news bee) 20Jul10 19Jun07, 19May17
Fly, tachinid (parasitoids)	21Jul16 19Oct11 18Jun22
Fly, tiger bee	17Jul28
Fly, white-faced*	20Sep11
Fungus gnats	19Jun21
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Galls	23Aug11 (oak), 23Jun30, 23May26 (elms and lindens) 22Sep02 (cynipid wasp) 21Jun11 (elm), 21Jun04 (on hickory), 21May28 (on witchhazel), 21May14 20Aug21 (linden), 20Jun12 (oak), 20Jun05 (elm, oak) 18Jun22 (elm), 18May25 (black gum, elm, oaks), 18May11 (elm)
Gall, bald cypress twig	23Nov30, 23Aug25, 23Jun09 22Jun17 21Jul09 20Jun19 19Jun14 18Jul13 17Oct13, 17Jun30
Gall, eriophyid mite	23Jul21 19Jun07 (on maple)
Gall, gouty	23Oct13
Gall, honeycomb leaf wasp	21Oct22
Gall, jumping oak	21Jul16 18Jun08
Mite, gall	18Jul27 (birch)
Gall, nipple	17May19
Gall, Norway spruce	17Apr28, 17Apr21
Gall, oak apple	20May22 16May20
Gall, oak flake	23Jul14
Gall, persimmon bead	23Jun09
Gall, pinecone oak (an unusual gall on oak that looks like distorted acorns, caused by a cynipid wasp)	23Aug25 22Aug26 21Sep10 20Oct09, 20Aug14 19Aug30
Gall, rough oak	22Aug26
Gall, spindle	23Sep01
Gall, stem (on willow oak)	22Apr22
Gall, tupelo leaf edge (eriophyid mite/phylloxerid)	23Aug11, 23Aug04
Gall, willow oak	20May01
Grubs, white	23Oct06, 23Sep15 21Aug13 20Oct23, 20Sep11 19Sep20 18Aug24 17Oct27, 17Sep29 16Oct14, 16Apr15 (status in soil profile)
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Hornet, bald-faced	23Aug25, 23Jun30 22Sep09, 22Jul29 21May07, 20Aug14 16Oct14
Hornet, European	23Sep22, 23Sep15, 23Sep08, 23Aug25, 23Jul28 22Sep16 21Oct22, 21Sep24, 21Sep03, 21Aug27, 21Aug13, 20Oct02 19Oct11, 19Aug30, 19Aug16, 19May03 18Oct05 17Oct13, 17Sep15, 17Aug18
Hornet, giant Asian (found in Washington State)	20May15, 20May08
Hornet, yellow-legged (first found near Savannah, GA)	23Aug25
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Katydid	22Apr15 (eggs) 21Sep24 19Aug23 17Mar24 (egg cases) 16Oct07
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Lacewings*	23Nov03 (debris-carrying), 23Jul21 21Jun18 20May08 (brown lacewings) 19Jun28 18Apr20
Lanternfly, spotted (a planthopper)	23Dec14, 23Nov03, 23Oct27, 23Oct20, 23Oct13, 23Oct06, 23Sep29, 23Sep22, 23Sep15, 23Sep08 (trials), 23Sep01, 23Aug25, 23Aug11, 23Aug04, 23Jul28, 23Jul21, 23Jul14, 23Jun30 (and predators), 23Jun23 (weather impact), 23Jun16, 23Jun09, 23Jun02, 23May26, 23May19, 23May12, 23May05, 23Apr28, 23Apr21, 23Apr07, 23Mar24, 23Mar17 22Oct28, 22Oct21, 22Oct14, 22Sep30, 22Sep16, 22Sep09, 22Sep02, 22Aug26, 22Aug12, 22Aug05, 22Jul29, 22Jul22, 22Jul15, 22Jul08, 22Jun24, 22Jun17, 22May27, 22May20, 22May06, 22Apr29, 22Apr22, 22Apr15, 22Apr08, 22Apr01, 22Mar25, 22Jan27 21Oct29 (using banker plants), 21Oct22, 21Oct01, 21Sep24, 21Sep17, 21Aug27, 21Aug13, 21Aug13, 21Jul02, 21Jun25, 21Apr23 (egg parasitoids) 20Nov13, 20Oct30 (and milkweeds), 20Oct23 (predators), 20Oct09, 20Sep04, 20Jul24, 20Jul17, 20Jun05, 20May22, 20May15 19Nov01, 19Oct11, 19Sep20, 19Aug30, 19Aug02, 19Jun21, 19Jun14 (pathogens of lanternfly), 19Jun07, 19May24, 19May17, 19May10, 19May03, 19Apr05 18Nov02, 18Oct26, 18Oct19, 18Aug17, 18Jul06, 18May25, 18May18, 18Apr27 17Aug18
Leafhoppers	22Aug26 (eggs), 22Aug05 (redbud)
Leafhopper, honeylocust	21May28
Leafhopper, potato	23May12 22Jun17, 22May20, 22May13 21Jun04, 21May28, 20Jun05, 20May29 19Aug02, 19Jun14, 19May17 18Jun01 17Jun16, 17May26 16Jun03
Leafminer	21Jun25 (arborvitae) 16Oct28
Leafminer, allium	23May05 22Sep16, 22Apr29, 22Mar25 21Sep10, 21May14, 21Apr16 20May01, 20Apr03 19May17 17Sep29
Leafminer, birch	16May06
Leafminer, boxwood	23Jul28, 23Jun16, 23May05, 23Apr28, 23Apr14, 23Apr07, 23Mar02 22Oct21, 22Oct14, 22Aug26, 22Jul22, 22Jun24, 22Apr29, 22Apr22, 22Apr15, 22Apr01, 22Mar09 21Sep10, 21Apr30, 21Apr16, 21Apr09 20Jun05, 20May15, 20May01 19May03 18May04, 18Apr20, 18Apr13 17Apr14, 17Mar31 16Aug19, 16Apr22, 16Apr15, 16Apr08, 16Apr01
Leafminer, columbine	21May21
Leafminer, daylily	16Jul01
Leafminer, hawthorn	17May05 16May06
Leafminer, holly	20Apr10 (native)
Leafminer, magnolia	21Jul23 20Jul02 19Aug09
Leafminer, oak shothole	20Jun19, 20Jun12
Leafminer, solitary oak	22Aug05
Leafminer, spinach	18May25
Leafroller, obliquebanded	23May26
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Maggots, seed	20May22, 20Apr10
Mantid, praying*	22Oct21, 22Mar25 (eggs), 20Nov24 (egg cases), 20Oct30, 20Oct02, 20Sep18 (feeding on spotted laternfly), 20Sep04, 20Jun19 (Carolina mantids), 20May15 (Chinese mantids - egg hatch) 19Oct18, 19Sep20, 19Sep06 (European mantis), 19Jun21 18Sep07, 18Aug17 17Sep29, 17Mar24 (egg cases of Chinese mantid) 16Oct21, 16Sep23, 16Sep16, 16Apr22
Mantisfly*	23May19 19Sep13
Mayflies	22Jul08
Mealybug	22Jun03 (on Taxus), 22Apr29 (on viburnum)
Midge, predatory*	19Sep26
Midge, chokecherry gall	21Aug13
Midge, rose	19Jun21 17Jun30, 17May05 16Sep16, 16Aug12
Millipedes	20Apr10 16Jun17
Mites	23Sep01, 23Aug04, 23Jun09 22Jun03 (on Taxus)
Mite activity (impact of hot weather)	21Jul23, 21Jul16, 21Jun11 17July07
Mite, beech erineum	22May20
Mite, boxwood	23Oct06, 23Jun30, 23Mar24, 23Mar02 22Apr29, 22Apr22, 22Mar25 20Jun26, 20Jun19 18Apr27, 18Apr20 17Apr21, 17Apr07, 17Mar24
Mite, broad	20Jun12 (on cranberries)
Mite, citrus	20Oct02
Mite, eriophyid	23May05 (galls on cherry), 23Mar31 22Aug05, 22May13, 22Apr08 19May10 (on black gum) 18May25 17May19
Mites, flat	22Sep30
Mite, honeylocust spider	17May05
Mite, hornbeam	17Jun30
Mite, maple	19Aug02
Mite, oak itch	21Aug13
Mite, oak spider	19Aug02
Mite, pearleaf blister	22May13 19May17 18Jun08
Mite, predatory*	22Apr15 20Mar27 19May10 18Jul27 (spider mite control) 16Sep16
Mite, Southern red	18May11 17Aug18, 17May19
Mite, spider	23Nov03, 23May26 22Aug12, 22Jul15, 22Jul08 21Sep10, 21Jun25 20Aug21, 20Jul24, 20Jul17 18Oct19 (impact of rain), 18Aug03, 18Jul06 (winged euonymus) 17Jun09 (azaleas) 16Jun03 (roses)
Mite, spruce spider	23Sep29, 23Mar24, 23Mar02 22Jun10, 22Apr29, 22Apr22 20Sep25, 20Apr24, 20Apr17, 20Mar20 18Apr27, 18Apr20 17Apr28, 17Apr07 16Apr01
Mite, twospotted spider	20Apr17 (strawberries) 17Jul14 16Sep16, 16Sep02, 16Jul29
Mite, velvet	23May26 20May15
Mosquito control	18Oct12, 18Aug17, 18Jun22 17Oct13, 17Sep01, 17Jul21 16May20
Mosquitoes	23Aug25 16May13 (and Zika virus)
Moths, as pollinators	22Sep09
Moth, Ailanthus webworm	16Sep23
Moth, boxwood/box tree	23Oct06 (found in NY) 21Aug20 20Oct16 (parasitoids found in England) 19Mar29 18Oct19
Moth, coddling	23May26 16Jun17
Moth, euonymus leaf-notcher	23Oct27
Moth, giant leopard	18Jul06
Moth, giant silk	17Aug25
Moth, oriental fruit	23Aug04
Moth, rosy maple	23Jun30
Moth, spongy (formerly gypsy), includes reports of caterpillars and adults	23Jul21 22Oct21, 22Aug05 (egg laying), 22Jun17 21Jul16, 21Jun11 20Jun19 18Jun01 17Apr14 (hatch) 16Jun17, 16May13 (entomopathogenic fungus for control)
Moth, hummingbird clearwing	23Jul28 21Jul23 16Jul22
Moth, luna	20May29
Moth, orange-tipped oakworm	19Jul19, 18Jul06
Moth, oriental fruit	22Jun03, 22May27 21May21, 21May14 16Jun17
Moth, pine tip	19Jun21
Moth, plastic-eating	18Sep21 17Apr28 (larvae)
Moth, tuliptree silk	22Jun10
Myramid*	17July07
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Nectria (an entomopathogenic fungi)	21Oct22
Nematodes, entomopathogenic* (beneficial)	23Aug25 20Jul17 (and peachtree borers)
Nematodes, foliar	23Aug25 18Aug31
Nematodes, root knot	20Sep18
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Parasitoids of caterpillars	19Sep13
Pcosids	20May29
Pillbugs	23Mar31 (and sowbugs)
Planthopper	22Sep02, 22Jul29 19Aug02
Pollinators	16Oct07 (many found in right-of-way), 16Sep23
Psyllid, boxwood	23Apr28, 23Apr07 22Apr29 21Jun04, 21May07, 21Apr30, 21Apr23, 21Apr16 20Apr03 19May03, 19Apr12 18May11, 18May04, 18Apr20, 18Apr06 16Apr29, 16Apr22
Pollinators, Native plants for	17Mar24
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Sapsuckers, yellow-bellied	18Oct26, 18Apr20, 18Apr13 17Oct27, 17Oct13, 17Mar17
Sawfly	22May27 (creeping jenny) 21May21 (on Chionanthus), 21May07 (creeping jenny) 18Jul06 (hornbeam), 18Jun15 (creeping jenny) 16Sep30 (contorted filbert), 14Jun13 (roses), 14May30 (roses), 14May23 (roses)
Sawfly, bladdernut slug	21Jul16
Sawfly, bristly roseslug	21May07, 21Apr30 20May29, 20May15 17Jun02
Sawfly, butternut woollyworm	21Aug27 18Sep07, 18Aug03 16Aug19
Sawfly, curled roseslug	16Aug12
Sawfly, dogwood	23Aug11, 23Jul21, 23Jun16 22Jul29 21Aug13 20Sep18, 20Jul31, 20Jul17 19Aug02, 19Jul19 17Aug25, 17Aug04
Sawfly, dusky birch	19Jun28 17Aug11, 17May12
Sawfly, elm zig zag	21Aug13, 21Jul09
Sawfly, European pine	16Apr29
Scale, gloomy	23May12
Sawfly, hibiscus	22Jun17, 22Jun10 20Sep18, 20Sep11 17Jun16 16Sep16, 16Jul29
Sawfly, introduced pine	20Jun19
Sawfly, oak slug	23Jun23 22Jun17 20Aug28 17Jul14, 17Jun16
Sawfly, scarlet oak	16Aug26
Sawfly, slug	19Jun28 (on black gum)
Sawfly, spiny	19May03
Sawfly, red-headed pine	22Aug05 21Sep10 20Sep25 19Oct25, 19Sep13, 19Jul19, 19Jul12 18Oct05 16Sep23, 16Jun24
Sawfly, rose slug (various species)	23May12, 23Apr21 22May27, 22May06, 22Apr22 20May01 19Apr26 18May11, 18May04 17Jun09, 17May12, 17Apr21, 17Apr14 16Sep09, 16May20, 16Apr29, 16Apr08
Sawfly, white pine	17Oct13 16Jun24
Sawfly, willow	19Jun14 18May18
Sawfly, zigzag	22Jul15 (larva)
Scale insects	23Apr14 (using IGRs) 22Apr22 (with Nectria fungus) 21Sep24 20Aug07 (and a fungus), 20Mar05 (an armored scale on Acorus gramineus 'Variegatus')
Scale, azalea bark	23Jun02 22Jun03 21Jul16, 21Jun18, 21May28 20Aug21, 20Apr24 19Oct04 17Jun02
Scale, calico	23May12, 23Apr14 21Jun04, 21Apr30 20Jun05, 20Apr24 19May24, 19May03 18May25, 18May18, 18May04 17Jun02, 17Apr28 16Jun17, 16May20
Scale, Chionaspis nyssae (black gum/sourgum scurfy scale)	23Sep01, 23Jul14, 23May26 (fungus present), 23Mar31 (felt fungus on the scale) 21Sep17, 21May14 20Jul31 (on black tupelo)
Scale, Clavaspis ulmi (on elm)	23Sep22
Scale, cottony camellia (taxus)	23May12, 23May05, 23Apr28, 23Apr07 22Jun10, 22May06, 22Apr01 21Oct22, 21Jun11, 21Jun04, 21May28, 21May07, 21Apr30 20Oct16, 20Jul24, 20Jun12, 20Jun05, 20May22, 20May15, 20May08, 20Mar27 19May24, 19May17, 19Apr26 18Jun08, 18Jun01, 18May25, 18May18, 18May11 17Jun30, 17May05, 17Apr21 16Jun10, 16Jun03, 16May20, 16Apr29
Scale, cottony cushion	20Dec11
Scale, cottony maple leaf	23Jun09, 23Apr28 21May28 20Jun12 18Jun08
Scale, cottony maple	21Jul09 17Mar31
Scale, crapemyrtle bark	23Nov03, 23Oct13, 23Oct06, 23Sep29, 23Sep15, 23Jun23 (and predators), 23Jun02, 23May26, 23May19, 23May05, 23Apr21, 23Mar31, 23Mar24 22Nov22, 22Oct28, 22Oct14, 22Sep30, 22Aug05, 22May20, 22May06, 22Apr01 21Oct08, 21Sep03, 21Aug27, 21Aug13 20Sep04, 20Aug28, 20Aug07, 20Apr17, 20Apr10 19Aug30 17Jun23
Scale, cryptomeria	23Apr07 21Oct29, 21Jun11 20Dec11, 20Jun12, 20Apr24 18Aug24, 18Jun15 17May19
Scale, elongate hemlock	22May06 20Apr10 18Sep21, 18Jun08
Scale, euonymus	23Jul28, 23May12 22Nov22, 22May27, 22Apr22 21Sep17 20Jun26, 20May15 19Jun28, 19May17 18Sep14, 18Sep07, 18Jul20, 18Jun15 17Jun30, 17May19 16May06
Scale, European elm	23Apr28 21Jun18 20Jul17, 20Jul10, 20Jun12, 20May22
Scale, false pit	18Aug31
Scale, felted (Eriococcin)	22May20 (oak) 20Jul24 18Apr27
Scale, fern	22Aug26 21Apr23 20Apr03 19May10 16Aug26
Scale, fletcher	22Jun17 19May24 17May26, 17Apr21 16Jun10, 16May27, 16May06
Scale, gloomy	22Jun29 20Aug07, 20Jul10, 20Jun19, 20May15 19Apr05 18Apr27 16Jun17
Scale, holly pit	21Aug27
Scale, Indian wax	23Sep29, 23Sep22, 23Mar17 22Apr29, 22Apr08 21Oct22, 21Oct01, 21Jun18, 21Apr09 20Mar20 17Sep29, 17Apr14
Scale, Japanese maple	23Jul14, 23Jun30, 23Jun09, 23Apr14 22Aug05, 22Jun24, 22Jun03, 22May06, 22Apr01 21Oct22, 21Aug13, 21Jun11, 21Jun04, 21Apr23 20Jul17, 20Jul02, 20Jun12, 20Apr24 19Jul19, 19Jun14, 19Jun07 18Oct05, 18Jun15 17Aug04, 17Jul28, 17Jun30, 17Jun02, 17May26, 17May19, 17Mar31, 17Mar24 (control), 17Mar17 16Sep16, 16Aug12, 16Jun10, 16Jun03, 16Apr22
Scale, juniper	18Sep07
Scale, lecanium	23May26 (oak) 22Jun03 (on Taxus), 22May06 21Jun04, 21May28, 21May21, 21May14, 21May07 20Dec11, 20Jun19, 20Jun12, 20May29, 20May22, 20May15, 20May08 19Oct18, 19Jun07, 19May10 18Jun15, 18Jun01, 18May25 17Sep15, 17Jun02, 17Apr21 16Jul08, 16Jun03 (oak), 16May27 (oak)
Scale, magnolia	23Sep29, 23Sep08, 23Jul14, 23Jun30, 23Jun16 16Sep30
Scale, white magnolia (false oleander scale)	23Sep22
Scale, Maskell	23Apr21 22Apr08 20May08, 20Apr24, 20Apr17 18Aug31, 18Jun01 17May19 16Aug12, 16May06
Scale, minute cypress	23May26, 23Apr21 22May27 21May21 20Jun12, 20May15, 20May08 19Apr26 18Sep07
Scale, obscure	20May15, 20May08 19Aug02, 19Jun28 18May11 17Apr21 16Apr15 (a fungus that feeds on the scale)
Scale, oystershell	19Sep13, 19Apr26 18May18, 18Apr20
Scale, pine needle	23Mar31 (and lady beetles) 22May13, 22Apr08 20May15 19May03 18Jun01 17Jul14, 17May19, 17Apr28 16Jul15, 16Jul08, 16May06, 16Apr29, 16Apr15
Scale, prunicola	18May25
Scale, (Pulvinaria spp.)	22Jun03 21May21 (on hibiscus) 16May27
Scale, Pulvinaria innumerabilis	22Sep30
Scale, Putnam	21Jul23 (on blueberry)
Scale, San Jose	23Oct13, 23May26, 23May05, 23Mar24, 23Jan24 22Aug26, 22Jul15 21Oct29, 21Sep17 20Jun19, 20May08 19Sep06, 19Aug23, 19Aug02, 19Jun28 18Aug31, 18May25, 18May18
Scale, tea	22May06, 22Apr22, 22Apr01 20Jun12 19Oct04, 19Sep06, 19Jul19, 19May24
Scale, tuliptree (and magnolia)	23Sep22, 23Sep15, 23Aug04, 23May26, 23Apr21, 23Apr07 22Sep16, 22Sep09, 22Aug26, 22Apr15 21Sep17, 21Sep10, 21Sep03, 21Jul16, 21May07, 21Apr23 20Oct30, 20Sep18, 20Sep11, 20Aug14, 20Jul24 19Sep26, 19Sep13, 19Aug16, 19Apr26 18Sep14, 18Jul20, 18Jun29 17Sep15, 17Sep01, 17Aug04, 17Mar31 16Sep30 (wasp feeding on scale), 16Aug19
Scale, white peach	23Oct06
Scale, white prunicola	23Oct20, 23Oct13, 23Jul21, 23May26, 23May19, 23May12, 23May05, 23Apr14, 23Apr07 22Oct21, 22Sep16, 22Aug26, 22Jul22, 22May27, 22May13 (also white peach scale), 22May06 21Sep17, 21Sep03, 21Jul16, 21May21 20Jun19, 20Jun12, 20May29, 20May08 19Oct18, 19Sep13, 19Aug30, 19Aug02, 19May17 18Jul06, 18Jun01, 18May11, 18Apr27 17Sep29, 17Sep15, 17Sep01, 17Jul21, 17Apr21, 17Mar31 16Sep16, 16Aug19, 16Jul08
Scale, winged euonymus	16Sep02
Slugs	23Sep01 22Jul15 (predators) 17Sep29, 17Sep01, 17Jun02
Snails	17Jun02
Sowbugs	23Mar31 (and pillbugs)
Spiders*	18Oct26, 18Sep14 17Sep01 16Sep02, 16Aug19, 15Sep25, 15Sep25, 15Aug14
Spider, Argiope*	23Oct13, 23Sep08 19Aug09 18Aug31
Spider, black widow	22May06
Spider, crab*	20Sep18 16Sep02
Spider, funnel*	23Sep29 20Oct02
Spider, Jorō	22Apr01
Spider, jumping*	22Aug26 19Nov01
Spider, orb*	21Sep17, 20Oct30 18Oct12
Spider, spined orbweaver*	20Jul31
Spider, spotted orbweaver*	22Oct14
Spider, wolf*	23Oct13 21Oct15 18May18 17Oct13
Spittlebug	21Jun18 19Jun07 18Jun01 17May19, 17Apr21 16Jun03, 16May20
Stonefly, giant	17Apr28
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Termites	20May22 (swarming) 19May10 18May11 17Jun02
Thrips	21Jun11 (vegetables) 17Jun16
Thrips, banded	16Jun17
Thrips, predatory*	18Sep28
Ticks	23Oct27, 23Apr21, 23Apr14 (and backyard deer), 23Mar02 22Apr22 21May21, 21May14 20Nov13 (and fleas), 20Jun12 (lonestar tick), 20May08 19May17 18Jul06 (longhorned), 18Jun01 17May05, 17Apr28 16Apr15
Treehopper	17Oct13
Treehopper, oak	20May29
Treehopper, two-marked	22Sep30 21Oct29, 20Sep25
Twig pruners	18Jul06
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Walkingsticks	22Sep02 19Aug30 18Sep21
Wasp, Aphidius	23Jun16 (parasitoid)
Wasp, braconid wasp*	23Sep01 (Cotesia spp. attack caterpillars) 20May15 (aphid parasitoids) 16Sep09 (hypoxlon canker on bark-stress indicator), 16Aug26, 16Aug12
Wasp, cicada killer*	23Jul28 17Jul21, 17Jun30 16Aug26, 16Jul29
Wasp, crabronid	23May12 (as predaor of emerald ash borer), 23May05
Wasp, cuckoo	20Jun19
Wasp, cynipid gall*	18Sep21
Wasp, four-toothed mason*	20Aug14
Wasp, great golden digger	20Jul24
Wasp, horntail*	19Sep13
Wasp, Ichneumon*	23Sep08 22Sep16, 22Sep09, 22Aug12 19Oct11 18Jul27 17Mar17
Wasp, mud dauber	20Jun19 (a new invasive found in Colorado and Quebec)
Wasp, mymarid*	21Jun04, 21Apr30 (lace bug predator) 16Jun10
Wasp, paper (Polistes sp.)	23Aug04 21Aug13 (and fall webworms) 20May08 19Aug23 18Jul27
Wasp, parasitic	23Jun16 (mummies), 23May19 (laying eggs), 23Apr21 (mummies) 22Sep09 (hornworm) 21Sep17 (of scale insects), 21May07 (parasitoids of aphids) 18Sep21, 18Aug31 17Aug18, 17Aug04, 17Jul21 17May05 (parasitoid of EAB eggs) 16Jul29
Wasp, sand	20Aug07, 20Jul31
Wasp, scoliid (digger wasp or blue-winged wasp)*	22Sep02, 22Aug05 21Oct01 19Aug16 18Sep07, 18Aug31, 18Aug03, 18Jul27 17Aug11 16Aug19
Wasp, thread-waisted (Eremnophila)	17Oct13 16Sep09
Wasp, Tiphia sp.	23Jul21 20Jul17
Wasp, yellowjacket	23Aug11 16Aug26
Webworm, ailanthus	18Oct05
Webworm, Asimina (paw paw)	22Aug26 21Jul16 19Sep06
Webworm, barberry	20Sep18 17Aug25 16Sep09
Webworm, fall	23Oct13, 23Sep01, 23Aug11 (their predators), 23Aug04, 23Jul21 22Aug26, 22Jul29, 22Jul22, 22Jun17, 22Jun03 21Oct01, 21Jul16, 21Jun11 20Sep25, 20Sep11, 20Sep04, 20Aug14, 20Jul24, 20Jul02, 20Jun26, 20Jun12 19Aug09, 19Aug02, 19Jul26, 19Jul19, 19Jul12, 19Jun07 18Aug24, 18Aug17, 18Jul13, 18Jul06, 18Jun22, 18Jun15, 18Jun01 17Aug18, 17Jul21, 17Jun30, 17Jun16 16Aug26, 16Jul29, 16Jul15
Webworm, Hawaiin beet	23Sep22
Webworm, Juniper	21Aug13
Webworm, mimosa	23Jul21 20Sep11 18Aug31 17Jul28
Weevils	23Jun30
Weevil, plum curculio	23Apr28 22Apr22, 22Apr15, 22Apr08 21Apr09 19Apr26 18May04 17Apr28
Weevil, thistle-head (Rhinocyllus conicus)	23Jun23 (thistle control)
Weevil, twobanded Japanese	23Aug11 20Aug07 17Jun30
Weevil, white pine	22Jun03, 22Mar25 21May07 20May15, 20Apr10, 20Mar20 19Jun14 18Jun08 17Apr21 16Jun10, 16Apr08
Weevil, yellow poplar	22Aug05
Whitefly, mulberry	23May26 19May17 18May04
Winter survival of insects	22Oct28