Brian A. Nault

Insecticide seed treatments for managing maggots (Diptera: Anthomyiidae) in onion across selected regions in North America

Leonardo D Salgado, Alan G. Taylor, Mary Ruth McDonald, Rob G. Wilson et autres

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Surfactants do not improve insecticide efficacy against Helicoverpa zea in sweet corn

John W. Mahas, Christophe Duplais, Brian A. Nault

Spraying Cry1A.105 + Cry2Ab2 Bt sweet corn has marginal benefit for Helicoverpa zea (Lepidoptera: Noctuidae) suppression

Anders S. Huseth, Kelly A. Hamby, Shea Ill, Arthur Young et autres

Management of corn earworm, Helicoverpa zea Boddie (Lepidoptera: Noctuidae) in fresh-market sweet corn requires multiple, precisely timed applications of effective insecticides. An alternative method to manage H. zea is sweet corn hybrids that express Bacillus thuringiensis (Bt) toxins, but this approach has …

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Composition and relative abundance of Delia spp. (Diptera: Anthomyiidae) infesting onions in selected onion-producing regions

Leonardo D Salgado, Nathan Hesler, Ollie Vetrovec, Ethan A Grundberg et autres

In the Great Lakes and Pacific Northwest regions of North America, maggots (Diptera: Anthomyiidae) threaten the production of dry bulb onion (Allium cepa L.). Onion maggot (Delia antiqua [Meigen]) is considered the primary Delia spp. pest in the Great Lakes, whereas seedcorn …

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Managing onion thrips in onion using co-applications of insecticides and chlorothalonil, 2025

Sarah Caldwell, Brian A. Nault

Insecticides and fungicides are typically co-applied to onion to manage onion thrips and multiple foliar pathogens. The efficacy of insecticides applied either alone or in combination with the fungicide chlorothalonil was evaluated for managing onion thrips in dry bulb onion. The experiment …

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Optimizing application timing and frequency of a novel dsRNAi ‐based insecticide for Colorado potato beetle management

Marcelo Dimase, Benjamin Z Bradford, Morgan Weissner, Aaron M Buzza et autres

BACKGROUND: The Colorado potato beetle (CPB), Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae), is as important pest of potato, Solanum tuberosum, in the U.S. CPB management is heavily dependent on broad-spectrum insecticides, thereby stimulating an interest to identify alternative solutions. In this study, we …

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Temporal efficacy of commercially available pheromone lures for monitoring Helicoverpa zea (Lepidoptera: Noctuidae)

Anders S. Huseth, Christophe Duplais, Sujan Panta, Kanika Jakhmola et autres

The performance of commercially available corn earworm, Helicoverpa zea Boddie (Lepidoptera: Noctuidae), female sex pheromone lures that attract male moths from four different commercial vendors was evaluated to determine the duration of catch in the field. Lures were aged outdoors beneath Scentry …

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Performance of novel alternatives to neonicotinoid insecticide seed treatments for managing maggots (Diptera: Anthomyiidae) in large-seeded vegetable crops

Leonardo D Salgado, Russell L. Groves, David Owens, Timothy D. Waters et autres

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Rearing of Spissistilus festinus [Say, 1830] (Hemiptera: Membracidae) on snap bean to facilitate studies on the transmission biology of grapevine red blotch virus

Victoria J. Hoyle, Elizabeth Cieniewicz, Madison T. Flasco, Brian A. Nault et autres

Spissistilus festinus [Say, 1830] (Hemiptera: Membracidae) is a well-known pest of leguminous crops and a more recently described pest of grapevine due to its ability to transmit grapevine red blotch virus, an economic threat to grape production. Legumes (family Fabaceae), unlike grapevines …

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Optimizing spirotetramat applications for effective onion thrips control in bulb and green onions

Natalie Constancio, Brian A. Nault, Ashley B Leach

Onion thrips, Thrips tabaci Lindeman, (Thysanoptera: Thripidae) is the most significant pest of Alliums (Amaryllidaceae) and is primarily managed with insecticides. Spirotetramat, a systemic insecticide, is currently recommended for early season use in bulb onion production, but its residual effects based on …

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Trap design and pheromone lure type influence Helicoverpa zea (Lepidoptera: Noctuidae) moth capture in sweet corn

John W. Mahas, Christophe Duplais, Kelly A. Hamby, Galen P. Dively et autres

Corn earworm, Helicoverpa zea Boddie, is a highly destructive pest of sweet corn, Zea mays L. convar. saccharata Koern, because of larval feeding. Insecticides are used to manage this pest, and application frequency typically depends on H. zea abundance in the field. …

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Practical resistance to spinosad in an onion maggot (Diptera: Anthomyiidae) population in New York

Leonardo D Salgado, Ollie Vetrovec, Nathan Hesler, Ping Wang et autres

Onion maggot, Delia antiqua (Meigen), is a significant constraint on onion production across the temperate regions of North America. Early season infestations can reduce plant stands up to 75% if untreated. Effective management of D. antiqua has historically relied on insecticide seed …

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