Resources for Agricultural Insects Pests

Title Available As Summary Date ID Author
Compact Soil Sampling Strategy for White Grubs
Annual white grubs (WG) are early-season pests attacking corn seeds and seedlings
Dec 19, 2018 2802-7027 (ENTO-296NP)
Cucumber Beetles Apr 30, 2020 2808-1009 (ENTO-368NP)
Potato Aphid on Tomatoes Mar 29, 2019 2901-1031 (ENTO-308NP)
Japanese Beetle
The Japanese beetle is found throughout Virginia and in most of the Eastern United States. In regions west of the Mississippi it is found in isolated pockets. Japanese beetles were first found in New Jersey in 1916 and have spread from that point since. The Japanese beetle has been well established in Virginia since the early 1970’s.
Sep 2, 2022 2902-1101 (ENTO-514NP)
European Hornet
The European hornet is a stout hornet approximately 1-inch long. The color of the head and thorax is dark reddish brown with deep yellow and brown black markings on the abdomen. The markings on the abdomen are similar to the markings found on yellow jackets. The European hornet resembles the cicada killer wasp but is more robust and has more hair on the thorax and abdomen (but is not as hairy as a bee).
May 1, 2020 2911-1422 (ENTO-369NP)
Twig Girdler/Twig Pruner
These beetles cause very conspicuous damage in late summer. The leaves on large numbers of twigs and branches will be observed to turn brown prematurely. These twigs and branches sometimes fall from trees in great numbers and accumulate. On close examination, the twigs have one of two kinds of damage. Twigs damaged by the twig girdler are cut as neatly as by a knife. The cut end has been gnawed almost straight across with a faint rounding and is slightly roughened by the chewing. The twig girdler is more commonly found on pecan and hickory. The twig pruner causes a slightly different type of cut. The twig will be observed to have a hollowed out space at the cut end filled with sawdust like frass. The twig when split open will have a long tunnel through most of its length. The twig pruner is more commonly found on oak.
May 1, 2020 2911-1423 (ENTO-374NP)
Virginia Pine Sawfly
The Virginia pine sawfly has been recorded from New Jersey and Maryland to North Carolina and westward to Illinois. Its main hosts are Virginia and shortleaf pines, but it also feeds on pitch and loblolly pine.
May 1, 2020 2911-1424 (ENTO-375NP)
The Minute Pirate Bug (Orius) Mar 18, 2019 3002-1437
Baldfaced Hornet
The baldfaced hornet is a large, black and white hornet up to 1 inch (25.4mm) in length. It is black and white in color with a mostly white head or face. It is widely distributed in Virginia. The nests are constructed of the same paper-like material as that of other wasps (yellowjackets). They differ a great deal from other wasp nests in being enclosed in a thick "paper" envelope. There is a single opening at the lower end of the nest and a few hornets always guard this. Nests are always abandoned at the end of the season. Hymenoptera, Vespidae: Dolichovespula maculata (L.)
Mar 6, 2020 3006-1449 (ENTO-352NP)
Flour and Grain Beetles Jan 12, 2022 3101-1577 (ENTO-469NP)
Corn Earworm on Vegetables Mar 25, 2019 3103-1537 (ENTO-312NP)
Cabbage Looper Oct 4, 2022 3104-1544 (ENTO-519NP)
Celery Leaftier Mar 25, 2022 3104-1545 (ENTO-496NP)
Grasshoppers Dec 21, 2021 3104-1550 (ENTO-483NP)
Hornworms in Home Gardens Dec 12, 2017 3104-1551 (ENTO-254NP)
Imported Cabbageworm in Home Gardens Dec 13, 2017 3104-1552 (ENTO-253NP)
Insect Pests of Potatoes in Home Gardens Dec 13, 2017 3104-1553 (ENTO-256NP)
Onion Thrips May 1, 2020 3104-1556 (ENTO-370NP)
Pepper Weevil Jun 6, 2022 3104-1558 (ENTO-507NP)
Raspberry Crown Borer Dec 22, 2021 3104-1561 (ENTO-473NP)
Rose Scale Apr 22, 2022 3104-1565 (ENTO-501NP)
Stalk Borer Dec 22, 2021 3104-1567 (ENTO-477NP)
Tarnished Plant Bug Apr 25, 2011 3104-1568
Whitefringed Beetles May 6, 2020 3104-1571 (ENTO-379NP)
Carpenter Ants
Carpenter ants can be found outside on trees and sidewalks and indoor. Where they are found determines how best to control them. Inside they can be active indoors during many months of the year, usually during the spring and summer. When ants are active in the house during late winter/early spring (February/March), the infestation (nest) is probably within the household. In late spring large numbers of foraging ants may come in from outside looking for food and may not indicate and infestation. Outside carpenter ants become active in late spring and early summer and will be seen on tree trunks and sidewalks.
Jan 20, 2022 3104-1573 (ENTO-485NP)
Lace Bugs Apr 18, 2022 3104-1581 (ENTO-500NP)
Obscure Scale
Heavily infested trees will have large numbers of scales on twigs and branches. Scales may also be found on exposed roots and on the trunk of young trees. Scale insects feed on plant sap with their long thread-like mouthparts (stylets), which are several times longer than the insect itself.
Apr 18, 2022 3104-1583 (ENTO-499NP)
Carpet Beetles Jan 30, 2022 3104-1588 (ENTO-486NP)
Droplet Chart / Selection Guide
When choosing nozzles/droplet sizes for spray applications, applicators must consider both coverage needed and drift potential. As a rule, smaller droplets provide better coverage, but larger droplets are less likely to drift.
Aug 13, 2019 442-031 (BSE-263P)
Nozzles: Selection and Sizing
This fact sheet covers nozzle description, recommended use for common nozzle types, and orifice sizing for agricultural and turf sprayers. Proper selection of a nozzle type and size is essential for correct and accurate pesticide application. The nozzle is a major factor in determining the amount of spray applied to an area, uniformity of application, coverage obtained on the target surface, and amount of potential drift.
Aug 13, 2019 442-032 (BSE-262P)
Pepper Maggot in Sweet (Bell) Pepper Apr 1, 2019 444-005 (ENTO-309NP)
Diamondback Moth Nov 27, 2018 444-007 (ENTO-293NP)
Colorado Potato Beetle Nov 27, 2018 444-012 (ENTO-292NP)
Fall Armyworm in Vegetable Crops Mar 18, 2019 444-015 (ENTO-311NP)
Aphids in Virginia Small Grains: Life Cycles, Damage and Control Mar 20, 2019 444-018 (ENTO-306NP)
Winter Grain Mite
The adult is relatively large compared to other spider mites and is the only mite of economic importance with the anal pore (a tan to orange spot best seen with microscope, but can be seen with a hand lens) on the upper surface of the abdomen.
May 12, 2020 444-037
Bluegrass Billbug Pest Management in Orchardgrass Feb 4, 2019 444-040
Hunting Billbug Pest Management in Orchardgrass Feb 4, 2019 444-041
Japanese Beetle in Field Corn Feb 4, 2019 444-106
Root-knot Nematode in Field Corn Feb 4, 2019 444-107
Asiatic Garden Beetle in Field Corn Feb 4, 2019 444-108
Slugs in Field Corn Feb 4, 2019 444-109
Insect Identification and Diagnosis Request Feb 27, 2020 444-113 (ENTO-196NP)
Integrated Pest Management Peanut Scouting Manual
In the competitive global peanut market, you need to lower production costs. At the same time, you also need to keep pesticide residues in peanuts to a minimum; protect rivers, streams, and lakes from runoff; and prevent chemicals from leaching through the soil to groundwater. Using IPM to protect crops only from pests that are likely to cause economic losses is a good way to meet these goals.
May 12, 2020 444-126
Identifying Soybean Fields at Risk to Leaf-Feeding Insects Nov 13, 2018 444-203 (SPES-74P)
Spider Mites
Spider mites (Family Tetranychidae, Order Acari) are not insects; they are closely related to spiders, harvestmen (daddy longlegs), and ticks. Unlike insects, which have six legs and three body parts, spider mites have eight legs and a one-part body. They also lack wings, antennae, and compound eyes. Individual spider mites are almost microscopic, yet when they occur in large numbers, they can cause serious damage. Dozens of species attack shade trees, shrubs, and herbaceous plants.
Apr 22, 2022 444-221 (ENTO-502NP)
Tarnished Plant Bug Dec 22, 2021 444-227 (ENTO-476NP)
Cabbage and Seedcorn Maggot Mar 25, 2022 444-231 (ENTO-495NP)
European Corn Borer Feb 4, 2019 444-232
Catalpa Sphinx Caterpillar Apr 15, 2022 444-247 (ENTO-497NP)
Cereal Leaf Beetle, Biology and Management
Cereal leaf beetle, a native to Europe and Asia, was first detected in Michigan in 1962. Since that time it has spread throughout most of the mid-western and eastern United States and has become a significant pest of Virginia and North Carolina small grains. This insect can become very numerous in small grain fields and the larvae are capable of reducing grain yield by eating the green leaf tissue.
May 12, 2020 444-350
The Peanut Southern Corn Rootworm Advisory
The southern corn rootworm (SCR) has long been considered a major pest of peanuts in North Carolina and Virginia. However, researchers and Extension faculty at Virginia Tech and NC State have determined through more than 400 commercial field trials that the majority of peanut fields do not need to be treated. They have developed and tested a simple-to-use advisory that identifies those fields not at risk for pod damage or economic loss. The Southern Corn Rootworm Advisory can save you time and money as well as help you use insecticides more efficiently.
Nov 22, 2019 444-351(ENTO-340P)
Field Guide to Stink Bugs
Field Guide to Stink Bugs of Agricultural Importance in the United States
May 12, 2020 444-356 (ENTO-68)
Second Edition Mid-Atlantic Guide to the Insect Pests and Beneficials of Corn, Soybean, and Small Grains Nov 13, 2018 444-360
Managing Stink Bugs in Cotton: Research in the Southeast Region Nov 13, 2018 444-390
Using Pitfall Traps to Monitor Insect Activity Feb 4, 2019 444-416
Asparagus Beetles Sep 29, 2022 444-620 (ENTO-521NP)
Stink Bugs Sep 16, 2022 444-621 (ENTO-517NP)
Corn Earworm Biology and Management in Soybeans
Corn earworm, Helicoverpa zea, is the most common and destructive insect pest of soybeans grown in Virginia. Although infestation severity varies, about one-third of our acreage is treated annually. This costs farmers 1.5 to 2 million dollars annually, and requires the application of many pounds of insecticide to crop lands. We may never eliminate this pest from Virginia soybeans, but knowledge of the biology and use of best management practices can help limit insecticide controls to those fields that meet economic threshold criteria. This publication provides current information on corn earworm biology, prediction of outbreaks, pest advisories, scouting procedures, and recently revised economic thresholds.
May 12, 2020 444-770
2022 Pest Management Guide - Field Crops Feb 3, 2022 456-016 (ENTO-461P)
2022 Spray Bulletin for Commercial Tree Fruit Growers
The guide contains information on pesticides used in orchards, with a seasonal treatment of when and how these materials should be employed. Efficacy information toward major fruit pests as well as beneficial species is included. The guide is black and white, but with a color photograph for the cover. It is spiral bound.
Mar 7, 2022 456-419 (ENTO-479P)
Taste of Farming: Integrated Pest Management Basics Apr 1, 2022 ALCE-296-6
Commercial Chinese Chestnut Production in Virginia Sep 21, 2017 ANR-279P
Soybean Insect Guide
Numerous kinds of insects can be found in soybeans. Most are beneficial or harmless, but some can cause yield loss and even crop failure if not controlled.
Mar 20, 2019 AREC-68NP
Sugarcane Beetle in Corn Dec 19, 2018 ENTO-13NP (ENTO-294NP)
Cluster Fly
Adult cluster flies are medium-sized, robust, somewhat bristly flies about 7 mm (0.3 inches) long.
Feb 2, 2021 ENTO-136NP (ENTO-410NP)
Galls and Rust made by Mites Nov 29, 2022 ENTO-532NP
Yellow Poplar Weevil
Rice-shaped holes about 1/16 inches result from adult feeding. Larval feeding forms mines, usually two per leaf. If they are both on the same side of midrib, one is extensive, and the other dwarfed. If the insect lays eggs on opposite sides of the midrib, both mines develop normally.
May 6, 2020 ENTO-172NP (ENTO-380NP)
Benefits of an Insecticide Seed Treatment for Pumpkin Production in Virginia
In recent years cucurbit growers in the Mid-Atlantic U.S. could purchase their seeds pre-treated with the neonicotinoid insecticide thiamethoxam. The insecticide seed treatment is currently packaged as FarMore F1400, which also includes three proven and complementary fungicides that provide the first line of defense against several key seed and seedling diseases including Rhizoctonia, Fusarium, Pythium, general damping-off and seedling blight.
Dec 21, 2015 ENTO-174NP
Spotted Lanternfly
The spotted lanternfly (SLF) originates from China where its presence has been documented in detail dating as far back as the 12th century.
Jul 26, 2018 ENTO-180NP (ENTO-284NP)
Hag Moth Caterpillar Dec 21, 2017 ENTO-19NP (ENTO-259NP)
Hickory Horned Devil Dec 21, 2017 ENTO-20NP (ENTO-260NP)
Mosquitos and their Control
The key to controlling mosquitoes is removing the standing or stagnant water where they live.
Dec 21, 2021 ENTO-202NP (ENTO-470NP)
Velvet Ants Dec 21, 2017 ENTO-22NP (ENTO-263NP)
Springtails Dec 21, 2017 ENTO-23NP (ENTO-262NP)
Economic Pests of Turfgrass Jan 31, 2018 ENTO-237NP
Silverfish and Firebrats Dec 21, 2017 ENTO-24NP (ENTO-261NP)
Survey of Pest Management Practices of Virginia Sweet Corn Growers – 2017 Dec 5, 2017 ENTO-248NP
Pest Alert: Spotted Lanternfly Identification and Reporting in Virginia Jul 7, 2022 ENTO-265NP (ENTO-513NP)
Corn earworm monitoring in commercial sweet corn fields in Virginia – 2017 Mar 5, 2018 ENTO-266NP
Flea Beetles Attacking Brassica Plants in Virginia Mar 27, 2018 ENTO-267NP
Possible Spotted Lanternfly Egg Mass Look-alikes in Virginia May 16, 2018 ENTO-276NP
Possible Spotted Lanternfly Immature Look-alikes in Virginia May 16, 2018 ENTO-277NP
Possible Spotted Lanternfly Adult Look-alikes in Virginia May 16, 2018 ENTO-278NP
Longhorned Tick Jun 25, 2018 ENTO-282NP
Asian Needle Ant Jun 4, 2018 ENTO-29NP (ENTO-280NP)
Western Corn Rootworm Feb 15, 2019 ENTO-302NP
Kudzu Bug, Megacopta cribraria, a pest of soybeans Jan 28, 2019 ENTO-303NP
Brown Stink Bug in Field Corn Feb 20, 2019 ENTO-307NP
What Virginians Need to Know About the 2022 Spotted Lanternfly Quarantine Expansion Jul 7, 2022 ENTO-319NP (ENTO-512NP)
Ciclo de Vida en Virginia de Spotted Lanternfly (Mosca de Alas Manchadas) Jun 24, 2019 ENTO-320NP
Residential Control for Spotted Lanternfly (SLF) in Virginia Aug 9, 2019 ENTO-322NP
Control de la Mosca Linterna con Manchas (Spotted Lanternfly- SLF) en Hogares de Virginia Aug 29, 2019 ENTO-322S
Spotted Lanternfly in Virginia Vineyards: Lycorma delicatula (White) (Hemiptera: Fulgoridae) Aug 17, 2022 ENTO-323NP (ENTO-516NP)
Mosca Linterna con Manchas (Spotted Lanternfly) en Viñedos de Virginia: Lycorma delicatula (White) (Hemiptera: Fulgoridae) Aug 20, 2019 ENTO-323S
Mexican Bean Beetle Aug 30, 2019 ENTO-326NP
Corn earworm, Helicoverpa zea, a pest of hemp, Cannabis sativa, in Virginia Sep 5, 2019 ENTO-328NP
Tarnished Plant Bug Aug 30, 2019 ENTO-329NP
Sugarcane Aphid in Virginia Sorghum Sep 12, 2019 ENTO-334NP
Managing the Asian Longhorned Tick: Checklist of Best Tick Management Practices for Horse Owners Mar 25, 2020 ENTO-348NP
Integrated Pest Management of Hemp in Virginia Mar 2, 2020 ENTO-349NP
Identification and Management of Spotted-Wing Drosophila in Virginia Berry Crops Jul 14, 2020 ENTO-387NP
Best Management Practices for Spotted Lanternfly on Christmas Tree Farms Feb 15, 2021 ENTO-402NP
Insect Identification Lab
Welcome to the Insect Identification Laboratory at Virginia Tech. The Insect Identification Lab covers all insects found in all situations and commodities in Virginia. This diagnostic lab started in 1967 and is a service for Extension Agents and Citizens of Virginia.
Apr 30, 2019 ENTO-45NP
Red Headed Flea Beetle in Virginia Nurseries Dec 21, 2021 ENTO-464NP
Potato Leafhopper Jan 12, 2022 ENTO-474NP
Avoiding Fire Ant Stings Dec 22, 2021 ENTO-481NP
Spotted Lanternfly Life Cycle in Virginia Jul 8, 2019 ENTO-268NP (ENTO-321NP)
Emerging Tick-Borne Arboviruses: Powassan virus, Heartland virus, and Bourbon virus Mar 21, 2022 ENTO-491NP
Red Imported Fire Ant Farmer Self-Inspection Checklist Mar 8, 2022 ENTO-493NP
Identification and Life Cycle of Spotted Lanternfly in Virginia Mar 18, 2022 ENTO-268NP (ENTO-494NP)
Box Tree Moth in the United States Oct 31, 2022 ENTO-525NP
Fire Ant Management for Livestock Producers: Hayfields and Pastures Nov 7, 2022 ENTO-527NP
Emerald Ash Borer
The emerald ash borer (Agrilus planipennis Fairmaire) is a wood-boring beetle native to eastern Asia and is now considered the most destructive forest pest ever seen in North America. Since its discovery in Michigan in 2002, it has killed tens of millions of native ash (Fraxinus spp.) trees in the United States and Canada. This destruction has already cost municipalities, property owners, and businesses tens of millions of dollars in damages.
May 10, 2020 HORT-69NP
Harvest Weed Seed Control May 6, 2019 SPES-135NP
Common Ragweed (Ambrosia artemisiifolia) Control in Soybeans Jun 6, 2019 SPES-143NP
VCE Ag Today - Soybean Arthropod Pest Management Apr 9, 2021 VCE-1027-17NP
Pesticide Applicator Manuals Dec 17, 2021 VTTP-2
Virginia Tech Pesticide Programs May 11, 2009 vtpp-1