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)|
|Palmer amaranth (Amaranthus palmeri) Control in Soybeans||Mar 20, 2020||2808-1006 (SPES-194NP)|
|Cucumber Beetles||Apr 30, 2020||2808-1009 (ENTO-368NP)|
|Insect Pest Management in Virginia: Cotton, Peanut, and Soybean 2010||May 1, 2009||2812-1027|
|Potato Aphid on Tomatoes||Mar 29, 2019||2901-1031 (ENTO-308NP)|
|Green Peach Aphid on Vegetables||May 1, 2009||2902-1081|
|Brown Marmorated Stink Bug||May 21, 2009||2902-1100|
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)|
|Making Replant Decisions for Slug Damaged Corn and Soybean Stands||May 14, 2009||2905-1293|
|Stinger Registered For Virginia-Grown Strawberries||Jul 28, 2009||2906-1346|
|Bug vs. Bug - Managing Plant Diseases with Biofungicides||Jul 29, 2009||2906-1354|
|Chemical Control of European Corn Borer in Bell Pepper||Jul 29, 2009||2906-1355|
|Sampling for European Corn Borer in Bell Pepper||Jul 30, 2009||2906-1356|
|Catalpa Sphinx Caterpillar||
Catalpa sphinx caterpillars, also known as “Catalpa worms”, are major defoliators of catalpa, their only host. With their chewing mouthparts, they strip away large portions of the leaves. In heavy infestations they can completely defoliate the entire tree. Apparently trees on high ground with poor soil are rarely, if ever, attacked. In some years, depending on the region, many trees will have all their leaves stripped away by the end of the summer. This may be followed by years with no defoliation observed at all. The fluctuation between outbreak and no defoliation is largely due to the activity of parasites.
|Nov 14, 2014||2911-1421 (ENTO-88NP)|
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)|
|Bean Pod Mottle Virus in Virginia Soybeans||Sep 9, 2010||3009-1461|
|Leaf‐ Footed Bugs||Dec 21, 2010||3012-1522|
|Corn Earworm on Vegetables||Mar 25, 2019||3103-1537 (ENTO-312NP)|
|Gardening for Bees in Hampton Roads||Apr 21, 2011||3104-1541|
|Beet Webworm||Apr 25, 2011||3104-1542|
|Blister Beetles||Feb 19, 2016||3104-1543 (ENTO-187NP)|
|Cabbage Looper||Sep 29, 2017||3104-1544 (ENTO-244NP)|
|Celery Leaftier||Apr 25, 2011||3104-1545|
Adults are usually black or brown beetles with an oval to oblong shape. They have clubbed or knobbed antennae and the economically important species typically measure 3–6 mm (0.12–0.24 inch) long. Some sap beetles have short wing covers that do not cover the entire abdomen. Some species have flattened bodies while others are more convex. Many sap beetles are a dull color, sometimes with mottling or spots. One common sap beetle, the picnic beetle [Glischrochilus quadrisignatus (Say)], is an attractive shiny black beetle with four yellow-orange bands or spots on the wing covers.
|May 13, 2015||3104-1546(ENTO-157NP)|
|Eggplant Lace Bug||
Adult eggplant lace bugs are a mottled grayish to dark brown in color and measure 4 mm (0.16 inch) long. Their bodies are flattened but sculptured, with broad lateral projections behind the head and lace-like wings. The antennae are darker at the tips. Nymphs are wingless and yellow in coloration. They develop black markings and black antennae as they mature. Older nymphs have many spiny projections over the body. Mature nymphs measure about 2 mm (0.08 inch) long.
|May 13, 2015||3104-1548(ENTO-153NP)|
|Grasshoppers||Apr 25, 2011||3104-1550|
|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)|
|Leafminers||Apr 25, 2011||3104-1554|
|Mexican Bean Beetle||Apr 25, 2011||3104-1555|
|Onion Thrips||May 1, 2020||3104-1556 (ENTO-370NP)|
|Parsleyworm||Apr 25, 2011||3104-1557|
|Pepper Weevil||Apr 25, 2011||3104-1558|
|Pickleworm||May 13, 2015||3104-1559(ENTO-154NP)|
|Raspberry Crown Borer||Mar 24, 2016||3104-1561 (ENTO-208NP)|
|Rednecked Cane Borer||Apr 15, 2016||3104-1562 (ENTO-210NP)|
Adult rhubarb curculios are elongated, somewhat cylindrical beetles measuring about 13-19 mm (0.5-0.75 inch) in total body length. They have an obvious long snout that curves downwards from the head. Young adults have a dusty coating of yellow or orange powder that rubs off easily. Older beetles that have lost this dusty coating appear brownish-black in color. Mature larvae are legless white grubs with a brown head capsule. Rhubarb curculio larvae are only found in weedy hosts and not in rhubarb itself. There are a number of related, similar-looking weevils that occur on various weeds in the Asteraceae and Polygonaceae families.
|May 13, 2015||3104-1563(ENTO-155NP)|
|Rose Chafer||Mar 24, 2016||3104-1564 (ENTO-209NP)|
|Rose Scale||Apr 25, 2011||3104-1565|
|Squash Vine Borer||
Adult squash vine borers are robust, attractive moths with dark wings and conspicuous orange abdomens dotted with black spots. The legs are marked with orange, black, and white, and the hind legs are noticeably feathery. Adults measure about 13 mm (0.5 inch) long with a wingspan of about 32 mm (1.25 inches). The dark wings are held folded at rest; there is a short fringe of hairs on the trailing edge. Squash vine borer is a member of the clearwing moth family; translucent windows are visible in the hind wings when they are fully extended. The antennae are dark, somewhat flattened, and hooked at the tips. Overall, adult squash vine borers resemble paper wasps in appearance. They are active day fliers with a zig-zag flight and easily travel from field to field.
|May 13, 2015||3104-1566(ENTO-158NP)|
|Stalk Borer||Apr 25, 2011||3104-1567|
|Tarnished Plant Bug||Apr 25, 2011||3104-1568|
Adult weevils are a dull, gray-brown color, and about 6–8 mm (0.25–0.32 inch) long. Adults are somewhat bristly in appearance due to t stout hairs and dense scales on the body. Usually there is a set of dark diagonal markings framing a lighter colored V-shape on the wings, but these may wear off with age. Antennae are elbowed and there is a short, stout snout at the front of the head.
|May 13, 2015||3104-1569(ENTO-156NP)|
|White Grubs in Vegetable Gardens||Apr 25, 2011||3104-1570|
|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.
|Mar 11, 2016||3104-1573 (ENTO-188NP)|
|Centipede - Chilopoda||May 13, 2011||3104-1574|
|Click Beetle - Coleoptera: Elateridae||May 13, 2011||3104-1575|
|Clothes Moths||Mar 11, 2016||3104-1576 (ENTO-191NP)|
|Firebrat - Thysanura: Lepismatidae||May 13, 2011||3104-1578|
|Fungus Gnats||Mar 16, 2016||3104-1579 (ENTO-201NP)|
|House Fly Maggot - Diptera: Muscidae||May 13, 2011||3104-1580|
|Lace Bugs - Hemiptera: Tingidae||Mar 17, 2016||3104-1581 (ENTO-204NP)|
|Indian Meal Moth||Mar 17, 2016||3104-1582 (ENTO-203NP)|
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.
|Mar 24, 2016||3104-1583 (ENTO-206NP)|
|Wheel Bug||Apr 15, 2016||3104-1585 (ENTO-211NP)|
|Wolf Spiders and Fishing Spiders||Mar 29, 2016||3104-1586 (ENTO-212NP)|
|Yellow Ants||Apr 15, 2016||3104-1587 (ENTO-213NP)|
|Carpet Beetles||Mar 4, 2016||3104-1588 (ENTO-189P)|
|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)|
|European Corn Borer in Sweet (Bell) Pepper||May 1, 2009||444-006|
|Diamondback Moth||Nov 27, 2018||444-007 (ENTO-293NP)|
|Bean Leaf Beetle Biology and Management in Snap Beans||May 1, 2009||444-009|
|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||May 19, 2016||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)|
|Cabbage and Seedcorn Maggot||May 1, 2009||444-231|
|European Corn Borer||Feb 4, 2019||444-232|
|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|
|Pest Management Guide: Field Crops, 2020||Feb 6, 2020||456-016 (ENTO-366P)|
|Pest Management Guide: Horticultural and Forest Crops, 2020||Jan 27, 2020||456-017 (ENTO-337)|
|Pest Management Guide: Home Grounds and Animals, 2020||
This 2019 Virginia Pest Management Guide provides the latest recommendations for controlling diseases, insects, and weeds for home grounds and animals. The chemical controls in this guide are based on the latest pesticide label information at the time of writing. Because pesticide labels change, read the label directions carefully before buying and using any pesticide. Regardless of the information provided here, always follow the latest product label instructions when using any pesticide.
|Feb 5, 2020||456-018 (ENTO-336P)|
|Commercial Chinese Chestnut Production in Virginia||Sep 21, 2017||ANR-279P|
|IMPACT: Virginia Winter Fruit School Impact||
Tree fruits are important to the agricultural economy in Virginia. The commonwealth ranks sixth in the nation in apple production, with a crop valued at more than $68 million, and 20th in peach production, with a crop valued at $4.5 million. Although smaller in acreage, cherries, pears, and plums also play an important role in some areas of Virginia. These fruit crops are susceptible to an everchanging array of insects, plant diseases, and weeds, and pest management programs are complex and knowledge-intensive.
|May 13, 2015||AREC-135NP|
|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|
|Arthropod Pest Management Research on Vegetables in Virginia – 2011||
This booklet summarizes more than 50 experiments of arthropod pest management research conducted on vegetable crops in Virginia in 2011. Experiments were primarily conducted at three Virginia Tech research stations: the Eastern Shore Agricultural Research and Extension Center (ESAREC) near Painter, VA, the Hampton Roads Agricultural Research and Extension Center (HRAREC) in Virginia Beach, VA and the Kentland Research Farm near Blacksburg, VA. All plots were maintained according to standard commercial practices.
|Feb 1, 2012||ENTO-1|
|2014 Insect Pest Management in Virginia Cotton and Peanut||Feb 9, 2015||ENTO-109NP|
|Sugarcane Beetle in Corn||Dec 19, 2018||ENTO-13NP (ENTO-294NP)|
|Non-Chemical Bed Bug Management||
Bed bugs have proven to be a very challenging pest. While most people would like to have a pest management professional come to their home and spray a magic potion that eliminates bed bugs forever, no such potion exists. Bed bugs are highly resistant to a number of insecticides and their eggs are impervious to most insecticide formulations.
|Apr 29, 2015||ENTO-130NP|
|Florida Predatory Stink Bug||
The Florida predatory stink bug (FPSB) is a native stink bug species in the southeastern United States. It predominately occurs in neotropical regions, but can be found as far north as Pennsylvania. This species is a natural enemy that feeds on a variety of insects including many agricultural pests (Figs. 1 & 2).
|Jun 5, 2015||ENTO-131NP|
Adult blow flies are generally medium to large, robust flies. They vary in length, with the largest species measuring about 16 mm (0.6 inches) long.
|May 19, 2015||ENTO-134NP|
|Brown Recluse Spider||
Brown recluse spiders belong to a group of spiders commonly known as violin spiders or fiddlebacks. Their name refers to a characteristic fiddle-shaped pattern on their head region directly behind their eyes (never on the abdomen). Brown recluse spiders range in color from tan to dark brown, but often they are a golden brown.
|May 19, 2015||ENTO-135NP|
Adult cluster flies are medium-sized, robust, somewhat bristly flies about 7 mm (0.3 inches) long.
|May 19, 2015||ENTO-136NP|
Adult house flies are medium-sized flies about 6 mm (0.25 inch) long. They are grayish-black in color, with 4 dark bands running the length of the thorax and conspicuous bristles on the body.
|May 19, 2015||ENTO-137NP|
|Imported Willow Leaf Beetle||
Imported willow leaf beetle was identified in the United States in 1915. It likely arrived on landscape plants shipped from Europe, where it is native.
|May 20, 2015||ENTO-139NP|
Adult iris borers are stout, medium sized moths with a wingspan of 3.8–5 cm (1.5–2 inches). The head and forewings are covered with purplish brown scales and the hind wings are yellowish. The forewings have thin dark zigzag lines, a more conspicuous dark kidney-shaped spot, and variable sooty shading around the margins
|May 20, 2015||ENTO-140NP|
|Locust Borer, Megacyllene robiniae (Forst.) Coleoptera: Cerambycidae||
The locust borer is a native insect that attacks black locust (Robinia pseudoacacia L.) and its ornamental cultivars. Adult locust borers are conspicuous black and yellow beetles with long black antennae and reddish legs. There is a yellow W-shaped band across the wing covers with other yellow stripes.
|May 8, 2015||ENTO-141NP|
|Redheaded Ash Borer||
Adult redheaded ash borers have somewhat cylindrical, elongated bodies ranging from 4–13 mm (0.16–0.5 inches) long and tapered towards the tip of the abdomen. The head, thorax and legs are reddish brown and there are four yellow dorsal bands on the darker wing covers.
|May 7, 2015||ENTO-142NP|
|Psocids: Barklice and Booklice||
Psocids are small, oval insects with soft bodies that usually measure only several millimeters long. A psocid measuring 6 mm (0.25 inches) long is rather large for this group of insects. Psocids generally occur in shades of brown, black, or pale colors; some have distinctive mottled or striped markings.
|May 7, 2015||ENTO-143NP|
|Galls made by Wasps||
Gall wasps attack primarily oak trees, and are found on roots, flowers, and acorns, but especially the leaves and twigs. Roses and brambles (blackberries and raspberries) also are attacked by gall wasps. These insects have complicated life cycles, and the galls they produce occur in an endless variety of shapes and colors. In some species, alternate generations produce distinctly different galls.
|May 14, 2015||ENTO-145NP|
|Galls made by aphids, adelgids, phylloxerans, psyllids, and midges||
Galls made by made by aphids, adelgids, phylloxerans, psyllids, and midges occur on many different plants. 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. Most are harmless to trees, but a few are pests.
|May 8, 2015||ENTO-146NP|
|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|
|Native and Solitary Bees In Virginia||
Although honey bees are well known for pollination and honey production, other bees at times impact humans in various ways. These native bees range from beneficial to annoying, sometimes at the same time. Native bees are important pollinators for fruit and vegetables.
|May 8, 2015||ENTO-151NP|
|Brown Marmorated Stink Bug, Biology And Management In Mid-Atlantic Soybeans||
The mission of the Delaware Soybean Board (DSB), Maryland Soybean Board (MSB), and Virginia Soybean Board (VSB) is to maximize the profitability of soybean producers in their respective states by investing soybean checkoff funds in targeted domestic and international research, promotion and communication initiatives. The volunteer farmer- leaders who serve on the DSB, MSB and VSB boards of directors invest your checkoff dollars in research to improve soybean production practices to make your farm more profitable and ensure the sustainability of Mid-Atlantic soybean production.
|Nov 5, 2015||ENTO-168NP|
|Pediobius foveolatus – A parasitoid of the Mexican bean beetle||
Pediobius foveolatus, is a tiny exotic parasitoid wasp that is used as a biological control agent for Mexican bean beetle, an important defoliating pest of beans in Virginia.
|Sep 24, 2015||ENTO-170NP|
|Cerceris fumipennis “The Smokey Winged Beetle Bandit”||
Cerceris fumipennis is a solitary digger wasp (crabronid) native to eastern North America. It is a predator almost exclusively of adult beetles of the family Buprestidae. This wasp gathers many species of native metallic wood-boring beetles, as well as the invasive emerald ash borer, Agrilus planipennis (Fairmaire) (EAB).
|Sep 24, 2015||ENTO-171NP|
|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)|
|Diagnosing stink bug injury to vegetables||
In the mid-Atlantic U.S. vegetable crops are attacked by several different stink bug species (1). The primary pest species include: the invasive brown marmorated stink bug (BMSB), Halyomorpha halys, which has become the dominant species in most landscapes (2), brown stink bug, Euschistus servus Say, which is the most common species attacking tomatoes; green stink bug, Chinavia hilaris Say (3); and harlequin bug, Murgantia histrionica, which is primarilly a pest of brassica vegetables only (4). All stink bugs are piercing sucking feeders that insert their stylets into the fruit, pods, buds, leaves, and stems of plants.
|Nov 13, 2015||ENTO-173NP|
|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|
|Summary of insecticide efficacy for control of wireworms on potatoes – Virginia (2003-2015)||
Wireworms are the subterranean larval stage of click beetles. These insects can remain in the soil for several years attacking potato seed pieces or tubers or seeds and roots of other crops that are planted in the field.
|Dec 23, 2015||ENTO-176NP|
|Control of Brown Marmorated Stink Bug with Insecticide-Treated Window Screens||
In Virginia and other Mid-Atlantic states, the invasive brown marmorated stink bug (BMSB) has become a serious nuisance pest (Rice et al. 2014). Each fall, these insects aggregate on buildings seeking shelters in which to spend the winter months.
|Jan 26, 2016||ENTO-177NP|
|Evaluation of the Residual Efficacy of Commercial Slug Baits||
Slugs are prevalent pests in no-till and reduced-till crop systems in Virginia. These slimy mollusks utilize plant residue to hide during the day, and at night, they feed on numerous crops causing irregular feeding holes and shredded leaves. Slugs cause the most damage during early plant growth.
|Jan 29, 2016||ENTO-178NP|
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)|
|Insect Pest Management in Virginia Cotton, Peanut, and Soybean 2015||Mar 8, 2016||ENTO-184NP|
|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.
|Mar 11, 2016||ENTO-202NP|
|Velvet Ants||Dec 21, 2017||ENTO-22NP (ENTO-263NP)|
|Fall cankerworm: Alsophila pometaria||
Cankerworms are also known as inchworms, loop worms, and spanworms - this is credited to their distinctive way of moving. In order to travel, a cankerworm must grab leaves or branches with its front legs and then pull the rest of its body forward. This causes the abdomen area to contract and gives the worm the appearance of arching its back.
|Aug 5, 2016||ENTO-223NP|
|Insecticide and Acaricide Research on Vegetables in Virginia 2016||
This booklet contains arthropod pest management research conducted on vegetable crops in eastern Virginia in 2016. Research was conducted at several locations in Virginia including: 1) the Virginia Tech Eastern Shore Agricultural Research and Extension Center (AREC) near Painter, VA.
|Dec 14, 2016||ENTO-229NP|
|Springtails||Dec 21, 2017||ENTO-23NP (ENTO-262NP)|
|Insect Identification Laboratory Annual Report 2016||Mar 7, 2017||ENTO-233|
|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 Lycorma delicatula||Nov 12, 2018||ENTO-265NP (ENTO-291NP)|
|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|
|Flea Beetles Attacking Eggplant in Virginia||Apr 11, 2018||ENTO-270NP|
|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|
|Alerta de Plagas: Mosca Linterna con Manchas Lycorma delicatula||May 30, 2018||ENTO-265 (ENTO-279S)|
|Longhorned Tick||Jun 25, 2018||ENTO-282NP|
|Asian Needle Ant||Jun 4, 2018||ENTO-29NP (ENTO-280NP)|
|Insecticide and Acaricide Research on Vegetables in Virginia -2018||Feb 13, 2019||ENTO-301NP|
|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||Jun 7, 2019||ENTO-319NP|
|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|
|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|
|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|
Both Hawaiian beet webworm (HBW) and beet webworm (BW) have multiple generations per year, and the total number is based on temperature. In tropical and subtropical climates, HBW is active year round, and can complete a generation in about 30 days. The species cannot overwinter in Virginia, but can migrate northward during the season to become a pest in late summer and early fall. BW is found throughout the U.S., but is more common in the western states. This species has fewer generations per year and can overwinter in the soil as a mature larva.
|Sep 1, 2014||ENTO-77NP|
|Spotted Lanternfly Life Cycle in Virginia||Jul 8, 2019||ENTO-268NP (ENTO-321NP)|
|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|
|Insecticide and Acaricide Research on Vegetables in Virginia -2017||Dec 17, 2018||SPES-85NP|
|Pesticide Applicator Manuals||Nov 17, 2011||VTTP-2|
|Virginia Tech Pesticide Programs||May 11, 2009||vtpp-1|