Resources by Thomas P. Kuhar
Title | Available As | Summary | Date | ID | Author |
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Cabbage Webworm | Mar 18, 2019 | 2811-1022 (ENTO-313NP) | |||
Potato Aphid on Tomatoes | Mar 29, 2019 | 2901-1031 (ENTO-308NP) | |||
Japanese Beetle Pest Management in Primocane-Bearing Raspberries | Sep 15, 2009 | 2909-1411 | |||
The Minute Pirate Bug (Orius) | Minute pirate bugs, particularly Orius insidiosus, are vital biological control agents for managing herbivorous insect pests. These small, predatory insects prey on a range of soft-bodied pests including thrips, mites, and aphids, making them crucial for natural pest suppression in a variety of agricultural settings. Orius are especially attracted to flowering plants, which makes landscape-level strategies like farmscaping—such as planting hedgerows, insectary plants, and cover crops—highly effective in boosting their populations. Producers and homeowners can protect and encourage these beneficial insects by minimizing broad-spectrum pesticide use and integrating pest management practices that support their habitat, thereby leveraging their natural predatory capabilities to reduce pest densities and enhance the health of crop plants. |
Oct 8, 2024 | 3002-1437 (ENTO-598NP) | ||
Leaf‐ Footed Bugs | Dec 21, 2010 | 3012-1522 | |||
Corn Earworm on Vegetables | Corn earworm is a pest of multiple agricultural crops grown in Virginia, including vegetables. These pests have a wide host range and can cause extensive damage, but monitoring and a variety of control methods help suppress populations and prevent losses. |
Oct 21, 2024 | 3103-1537 (SPES-624NP) | ||
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) | |||
Pepper Maggot, Zonosemata electa, in Sweet (Bell) Pepper | The pepper maggot, Zonosemata electa, is a significant pest of bell pepper in eastern North America, having transitioned from its native wild host, the horse nettle, to domesticated solanaceous plants like bell pepper and eggplant. Infestation levels can be alarming, with near-total crop loss possible from a single maggot per fruit. Control methods primarily involve insecticide applications, posing challenges for organic producers. The pest has a single annual generation, overwintering as a pupa in soil. Monitoring adult populations using yellow sticky traps and oviposition scars is essential for effective management. Cultural practices such as field sanitation, crop rotation, and the eradication of alternate hosts are crucial in mitigating damage. Additionally, trap cropping with hot pepper varieties and perimeter sprays have shown success in reducing damage to bell peppers. Various insecticides are available for pre-emptive control, emphasizing the importance of monitoring to optimize application timing. |
Oct 18, 2024 | 444-005 (ENTO-601NP) | ||
Diamondback Moth | Feb 23, 2024 | 444-007 (ENTO-581NP) | |||
Colorado Potato Beetle | Feb 23, 2024 | 444-012 (ENTO-582NP) | |||
Fall Armyworm in Vegetable Crops | The fall armyworm (Spodoptera frugiperda), a pest from the Noctuidae family, originates from the tropical Americas and lacks diapause, allowing it to migrate north from Gulf Coast states. This moth has been reported in all U.S. states east of the Rockies and has become a significant pest in other parts of the world. Fall armyworm larvae cause severe defoliation to a variety of plants, especially grasses, and fruit damage to crops like sweet corn, tomatoes, and peppers. Management strategies include using pheromone traps for monitoring, scouting for eggs and larvae, and promoting biological controls. Insecticides are also used, though resistance issues can arise. Effective control requires timely interventions based on thresholds to mitigate economic impact. |
Oct 14, 2024 | 444-015 (ENTO-599NP) | ||
Field Guide to Stink Bugs | Field Guide to Stink Bugs of Agricultural Importance in the United States |
May 12, 2020 | 444-356 (ENTO-68) | ||
Asparagus Beetles | Sep 29, 2022 | 444-620 (ENTO-521NP) | |||
2025 Pest Management Guide - Field Crops | The Virginia Pest Management Guide (PMG) series lists options for management of major pests: diseases, insects, nematodes, and weeds. These guides are produced by Virginia Cooperative Extension and each guide is revised annually. PMG recommendations are based on research conducted by the Research and Extension Division of Virginia Tech, in cooperation with other land-grant universities, the USDA, and the pest management industry. |
Feb 3, 2025 | 456-016 (ENTO-602P) |
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2024/2025 Mid-Atlantic Commercial Vegetable Production Recommendations | This guide lists vegetable varieties that are available and are adapted to the mid-Atlantic region, gives an overview of cultural practices, and list chemicals recommended to manage pests, diseases and weeds in vegetable crops. New varieties of vegetables are constantly being developed throughout the world. While all efforts are made to have comprehensive lists, not all varieties that are adapted will be listed. |
Feb 8, 2024 | 456-420 (SPES-586P) | ||
2025 Southeastern U.S. Vegetable Growers Crop Handbook | This handbook represents a joint effort among Extension specialists and researchers from 15 land-grant universities in the U.S. who work in vegetable production. These specialists and researchers represent a wide array of disciplines: agricultural engineering, agribusiness, entomology, food safety, horticulture (vegetable production), plant pathology, postharvest physiology, soil science, and weed
science.
This handbook comprises up-to-the-minute information from research and Extension projects conducted throughout the southeastern United States. The key idea behind this handbook is to provide you with a practical resource that conveniently fits on your dashboard. It contains the information that you need to manage your vegetable crops, including which varieties to plant, planting dates, fertilizer recommendations, cover crop selection and conservation tillage options, pesticide selection, grafting, fertigation, plasticulture, postharvest handling, alternative pest management tools, and suggestions, as well
as many other topics. |
Feb 19, 2025 | AREC-66NP (SPES-674NP) | ||
Facts About Industrial Hemp | Aug 14, 2017 | CSES-196NP | |||
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. |
May 25, 2021 | ENTO-173NP (ENTO-449NP) | ||
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 | ||
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 19, 2021 | ENTO-177NP (ENTO-400NP) | ||
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. |
Feb 15, 2021 | ENTO-178NP (ENTO-401NP) | ||
Economic Pests of Turfgrass | Dec 16, 2022 | ENTO-237NP | |||
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 | |||
Flea Beetles Attacking Eggplant in Virginia | Apr 11, 2018 | ENTO-270NP | |||
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 | The kudzu bug (Megacopta cribraria) is an invasive pest from Asia and first appeared in the U.S. in 2009 near Atlanta, Georgia. It has since spread to 18 additional states and the District of Columbia, threatening soybean crops. Recognizable by their mottled dark green and brown coloration, adult kudzu bugs are shield bugs that exude a pungent defensive substance when disturbed. Adults and nymphs feed on plant phloem, causing both direct and indirect damage to plants. Despite initial concerns, populations only occasionally reach damaging levels, but monitoring and management remain crucial. The kudzu bug has two generations per year, with adults emerging from overwintering in early spring. Management includes chemical control with pyrethroids and neonicotinoids, biological control with parasitoid wasps and the fungus Beauveria bassiana, and cultural control by reducing kudzu patches. Here we detail the bug's distribution, life cycle, pest status, and management strategies, highlighting the importance of ongoing vigilance and integrating management tactics. |
Jul 12, 2024 | ENTO-303NP (ENTO-597NP) | ||
Mexican Bean Beetle | This publication reviews the biology and management of Mexican bean beetle, an herbivorous lady beetle (Coccinellidae) that feeds on bean crops (legumes). |
Aug 30, 2019 | ENTO-326NP | ||
Corn earworm, Helicoverpa zea, a pest of hemp, Cannabis sativa, in Virginia | Sep 5, 2019 | ENTO-328NP | |||
Sugarcane Aphid in Virginia Sorghum | Sep 12, 2019 | ENTO-334NP | |||
Lepidopteran Insecticide Menu for Vegetable Growers | Jan 7, 2021 | ENTO-395NP | |||
Colorado Potato Beetle Foliar Insecticide Menu for Potato Growers | Mar 8, 2021 | ENTO-396NP | |||
Critical updates for the 2021 Mid-Atlantic Commercial Vegetable Recommendations | Mar 10, 2021 | ENTO-446NP | |||
Biology and Management of Brown Marmorated Stink Bug in Mid Atlantic Soybean | Jul 2, 2021 | ENTO-450NP | |||
Benefits of an Insecticide Seed Treatment for Cucurbit Production | Oct 14, 2021 | ENTO-456NP | |||
Broad-Headed Bugs | Jul 23, 2021 | ENTO-457NP | |||
Mexican Bean Beetle | Mexican Bean Beetle (MBB), Epilachna varivestis Mulsant (Fig. 1), is an herbivorous lady beetle (Coccinellidae) that feeds on bean crops (legumes) in North America. It is similar to the squash lady beetle, Epilachna borealis, which feeds primarily on cucurbits. MBB can cause significant defoliation damage to various bean crops particularly in the genus Phaseolus (snap beans, lima beans, pole beans, etc.). It will also feed on soybean, alfalfa, beggarweed, kudzu, and other legumes. |
Dec 13, 2013 | ENTO-51NP | ||
Improving Pest Management with Farmscaping | Farmscaping is a holistic ecologically-based approach to pest management that emphasizes the arrangement or configuration of plants that promote biological pest management by attracting and sustaining beneficial organisms. Ideal farmscape plantings provide habitat for beneficial insects, suppress weeds, and grow in close proximity to the cash crop without competing for light, water and nutrients. Research has shown that maintaining high levels of species diversity is a key characteristic of a proper functioning agroecosystem. Unfortunately, intensive farming operations including growing large monocultures, regular cultivation, and excessive use of insecticides often leads to a dramatic reduction in arthropod diversity, especially natural enemies that often keep many pest insects below damaging levels. Farmscaping is a technique designed to add diversity back to the system and minimize disturbance leading to increases in natural enemy populations by providing insectary plants as food and shelter resources. |
Aug 1, 2019 | ENTO-52NP(ENTO-55NP) | ||
Soldier Beetles (Leatherwings) | This publication reviews the biology of cantharid beetles. Cantharids, known as soldier beetles or leatherwings, are commonly-encountered beetles throughout Virginia. Two species in the genus Chauliognathus are the most frequently observed; the margined leatherwing (Chauliognathus marginatus) is found during the spring and early summer, while the Pennsylvania leatherwing or goldenrod soldier beetle (Chauliognathus pensylvanicus) is active during the late summer and early fall. Both species visit a variety of wild and cultivated flowers, and they can be considered beneficial insects. |
Aug 30, 2019 | ENTO-53NP (ENTO-327NP) | ||
Striped Cucumber Beetle | In Virginia, cucurbits are attacked by two native species of cucumber beetles, the striped cucumber beetle, A. vittatum, which is featured in this document, and the spotted cucumber beetle, Diabrotica decimpunctata howardi (Mannerheim), which is discussed in a separate fact sheet. |
May 12, 2020 | ENTO-61NP | ||
Survey of Insecticide Efficacy on Three-Cornered Alfalfa Hopper | Apr 12, 2023 | ENTO-555NP | |||
Diamondback Moth Mating Disruption | Diamondback moth has become one of the hardest lepidopteran "worm" pests to control globally due to insecticide resistance. Mating disruption is an effective pesticide-free strategy for managing this pest of cabbage, broccoli, collards, and other brassica crops. |
Aug 25, 2023 | ENTO-571NP | ||
USDA Edamame Project | Feb 15, 2019 | SPES-104NP | |||
2021 Virtual Eastern Shore Agricultural Conference and Trade Show | Mar 12, 2021 | SPES-312NP |
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Managing Fall Armyworms on Lawns | Aug 31, 2021 | SPES-357NP | |||
2021 Eastern Shore AREC Interactive Research Field Day | Oct 8, 2021 | SPES-359NP | |||
Insecticide and Acaricide Research on Vegetables in Virginia -2017 | Dec 17, 2018 | SPES-85NP | |||
Edamame in Virginia I: Products and Marketing | Mar 29, 2023 | SPES-454NP | |||
Edamame in Virginia II. Producing a High-Quality Product | Apr 13, 2023 | SPES-455P | |||
Virginia Vegetable Specialist Team | Mar 31, 2023 | SPES-480NP | |||
VCE Ag Today: Fall Armyworm: 2021 Recap | Feb 7, 2022 | VCE-1027-60NP | |||
VCE Ag Today: Fall Vegetable Pest Update | Apr 12, 2021 | VCE-1027-31NP | |||
VCE Ag Today: Cucurbit Management | Jul 5, 2021 | VCE-1027-51NP | |||
VCE Ag Today: Hot Topics in Commercial Horticulture | Mar 25, 2021 | VCE-1027-6NP |