Resources for Agricultural Insects Pests
|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)|
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.
|Dec 11, 2014||2902-1101 (ENTO-97NP)|
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|
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)|
|Flour and Grain Beetles||Jan 12, 2022||3101-1577 (ENTO-469NP)|
|Corn Earworm on Vegetables||Mar 25, 2019||3103-1537 (ENTO-312NP)|
|Cabbage Looper||Sep 29, 2017||3104-1544 (ENTO-244NP)|
|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 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)|
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 (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 27, 2017||444-620 (ENTO-243NP)|
|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)|
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||
Galls are abnormal growths of plant tissue induced by insects and other organisms. Gall-making parasites release growth-regulating chemicals as they feed, causing adjacent plant tissues to form a gall. The parasite then develops within the relative security of the gall. Galls come in an endless variety of forms. Many are strikingly colored or curiously shaped. Each gall-making species causes a gall structurally different from all others. By noting the type of host plant and the structure of the gall, one can identify the gall-making mite without actually seeing it.
|May 8, 2015||ENTO-147NP|
|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|
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|
|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 Spotted Lanternfly Quarantine||Feb 15, 2021||ENTO-319NP (ENTO-444NP)|
|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 12, 2019||ENTO-323NP|
|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)|
|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|