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Showing 1 to 18 of 18 for “"Diabrotica virgifera virgifera LeConte"”.
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Case Study of a Variant of Western Corn Rootworm, Diabrotica Virgifera Virgifera LeConte, in East Central Illinois
"We are working on this problem because growers do not have enough information that will enable them to practice sound IPM practices rather than just applying soil insecticides prophylactically at planting. In fact, findings from this research might enable growers to reduce the use of soil …
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Influence of Different Crops on the Population Dynamics of the Western Corn Rootworm, Diabrotica Virgifera Virgifera LeConte, in East Central Illinois
… behavior of the western corn rootworm, Diabrotica virgifera virgifera LeConte, which is implicated in the decrease of effectiveness of the soybean-maize rotation as a pest management strategy in east central Illinois and northern Indiana. The influences of maize (Zea mays L.), soybean …
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Western corn rootworm (Coleoptera: Chrysomelidae; Diabrotica virgifera virgifera LeConte) emergence and abundance in transgenic cornfields with structured and seed blend refuges
… corn rootworm (Coleoptera: Chrysomelidae; Diabrotica virgifera virgifera LeConte) larvae have been managed using transgenic Bt (Bacillus thuringiensis Berliner) corn hybrids expressing toxic Cry proteins (i.e., Cry3Bb1, Cry34Ab1/35Ab1, mCry3a) for a decade. To delay western corn rootworm …
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Gut physiology and host-microbe interactions of the rotation-resistant variant of the western corn rootworm (Diabrotica virgifera virgifera LeConte) (Coleoptera: Chrysomelidae)
The western corn rootworm (WCR; Diabrotica virgifera virgifera LeConte) is an important chrysomelid pest of corn (Zea mays) in the US. WCR larvae feed on corn roots, while adult beetles may consume aboveground corn tissues. WCR larvae are nutritionally dependent on corn roots; completion of the …
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Spatial distribution of western corn rootworm (Diabrotica virgifera virgifera Leconte) trap counts and evaluation of a novel method for sampling soil pests of field corn
Studies were conducted in 1990 and 1991 to investigate two kinds of soil insects that attack field corn in Virginia. Corn rootworms, the most important of which is the western corn rootworm (WCR), feed on corn roots and have been sampled effectively using yellow sticky traps. The spatial …
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From pest management to education: A study of trap crops for the western corn rootworm (Diabrotica virgifera virgifera LeConte) and 3D models for teaching insect morphology and identification
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Arthropod damage in corn across site-specific management zones and differing water and nitrogen levels
… nubilalis [Hübner]), western com rootworm (Diabrotica virgifera virgifera [Leconte]), western bean cutworm (Richia albicosta [Smith]), and Banks grass mite (Oligonychus pratensis [Banks]). Infestations of each pest were created within each SSMZ by artificially infesting pests or manipulating …
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Inheritance and fitness costs Of field-derived resistance To Cry3Bb1 corn by western corn rootworm
<p>The western corn rootworm (Diabrotica virgifera virgifera LeConte) is serious pest of corn, particularly in the Midwestern United States. One strategy used to manage western corn rootworm is the planting of transgenic corn that produces one or more Cry toxins derived from Bacillus thuringiensis …
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Inheritance, fitness costs, and potential mechanisms of resistance for western corn rootworm larvae surviving Bt corn
The western corn rootworm, Diabrotica virgifera virgifera LeConte, has developed resistance to most control tactics used to manage it. Transgenic corn varieties that express insecticidal proteins from the bacterium Bacillus thuringiensis Berliner (Bt), cause mortality to target pests when ingested. …
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Functional and ecological investigations in Cucurbita: factors mediating fruit infections and insect interactions
… beetles such as western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), spotted cucumber beetle Diabrotica undecimpunctata howardi Barber (Coleoptera: Chrysomelidae), and the striped cucumber beetle, Acalymma vittatum Fabricius (Coleoptera: …
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Evaluating the effect of foliar insecticides on suspected Bt-resistant western corn rootworms in rotated soybean
The western corn rootworm, Diabrotica virgifera virgifera LeConte, is the most economically significant insect pest of U.S. corn production and can inflict substantial yield loss. Historically, crop rotation was a successful management strategy because oviposition occurred predominantly in …
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The role of digestive proteases in the rotation-resistant phenotype of the western corn rootworm, Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae)
The western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a significant insect pest of maize in the United States, Canada and Europe. Until the mid 1990s, this pest was successfully controlled by annual crop rotation, alternating maize with a non-host …
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A Study of Neonicotinoid Seed Treatments in Bt Maize: Insect Resistance Management, Efficacy, and Environmental Fate
… by Bt maize is the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae). Transgenic Bt technology has dramatically reduced insecticide use for WCR, and insect resistance poses the greatest threat to its utility. To delay resistance to Bt traits, in 2010 …
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Nutrient uptake and partitioning in high-yielding corn
… insect protection from western corn rootworm (Diabrotica virgifera virgifera LeConte) significantly influence nutrient uptake, removal, and grain nutrient concentrations. Agronomic management, which allowed hybrids to achieve their maximum yield potential through improved fertility, further …
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Responses of rotation-resistant and rotation-susceptible populations of the western corn rootworm to transgenic corn expressing cry toxins and validation of a damage function for corn rootworm larvae
The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a significant insect pest of corn, Zea mays L. Yield losses and control costs associated with the corn rootworm complex—which includes the northern (Diabrotica barberi Smith & Lawrence) and southern …
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Field-evolved resistance to Cry3Bb1 corn by the western corn rootworm: Investigations of resistance, emergence, node-injury ratings, and fitness
The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is an economically relevant pest of corn, Zea mays L. In 2003, the United States Environmental Protection Agency (US EPA) approved the use of transgenic Bt (Bacillus thuringiensis Berliner) corn hybrids …
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The movement behavior and reproductive ecology of western corn rootworm beetles (coleoptera: chrysomeliae) in Bt cornfields with structured and seed blend refuges
… corn rootworm (Coleoptera: Chrysomelidae; Diabrotica virgifera virgifera LeConte) larvae have been managed using transgenic Bt (Bacillus thuringiensis Berliner) corn hybrids expressing insecticidal Cry proteins since 2003. To slow the evolution of resistance to Cry proteins, the …
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Modeling insect resistance to transgenic corn and cowpea
… and female-skewed-sex-ratios among adults of Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae) from Bt corn have been reported in field studies. A simulation model was used to study the effect of a maturation delay and a female-skewed-sex-ratio for D. v. virgifera emerging …