Helicoverpa zea
Efficacy of Seed Mixes of Transgenic <em>Bt</em> and Nontransgenic Cotton Against Bollworm, <em>Helicoverpa zea</em> Boddie
... The 1996 advent of Monsanto’s transgenic Bt cotton, commercially available as “NuCOTN” with the Bollgard Bt gene, provided growers with a new tool for controlling caterpillar pests in cotton. A delta-endotoxin protein ...
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Establishing a Flowering Threshold and Feeding Behaviors between Helicoverpa zea and Soybeans.
... Helicoverpa zea (Boddie), commonly referred to as the bollworm, corn earworm and tomato fruitworm, has been recorded as a pest on soybeans [Glycine max ...season. Helicoverpa zea may feed on ...
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Seasonal patterns of capture of Helicoverpa zea (Boddie) and Heliothis phloxiphaga (Grote and Robinson) (Lepidoptera: Noctuidae) in pheromone traps in Washington State
... moths, Helicoverpa zea (Boddie), first appeared in pheromone traps in late May to mid June, and thereafter were present nearly continuously until mid to late ...
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The Influence of Transgenic Cottons Expressing One or Two Bacillus Thuringiensis Proteins Against Helicoverpa zea (Lepidoptera: Noctuidae) and Factors Affecting B. t. Resistance in H. zea
... Bollgard (Monsanto Co., St. Louis, MO) and Bollgard II cottons that express either one or two Bacillus thuringiensis (Berliner) proteins, respectively, were evaluated along with either the conventional sister line or a ...
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Investigating host use and migration by the corn earworm (Noctuidae: Helicoverpa zea) using stable isotope and morphometric techniques.
... of Helicoverpa zea moths in Texas. Adult Helicoverpa zea were collected by sex pheromone trappings from 18 February to 2 October, 2000, in Brazos River Valley a region in Central Texas about ...
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Central Role of Hemocytes in Autographa californica M Nucleopolyhedrovirus Pathogenesis in Heliothis virescens and Helicoverpa zea
... and Helicoverpa zea, a fully permissive and a semipermissive host, ...H. zea, however, were melanized and encapsulated by 48 h after oral inoculation, a host response not observed in ...H. zea ...
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Impact of Bollworms [<em>Helicoverpa zea</em> (Boddie)] on Maturity and Yield of Bollgard Cotton
... A large percentage of Bollgard cotton is treated for bollworms [Helicoverpa zea (Boddie)] with little information about economic losses from these infestations. The impact of bollworm infes- tations on ...
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Mating Behavior of Wild Helicoverpa zea (Lepidoptera: Noctuidae) Males with Laboratory Females
... trap-captured Helicoverpa zea (Boddie) males (wild) enclosed with laboratory females for one to five days, compared with the enclosure of laboratory females and ...
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Demographic performance of Helicoverpa zea populations on dual and triple-gene Bt cotton
... Transgenic crops expressing insecticidal toxins from the bacterium Bacillus thuringiensis (Berliner) (Bt) provide valuable pest management options for pests of field crops worldwide [1–3]. Positive socio-economic and ...
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Field Performance of Transgenic Cottons Expressing One or Two <em>Bacillus thuringiensis</em> Endotoxins Against Bollworm, <em>Helicoverpa zea</em> (Boddie)
... T he availability of transgenic Bollgard cottons (Monsanto Co., St. Louis, MO), which contain a gene from the soil bacterium Bacillus thuringiensis var. kurstaki encoding for the Cry1Ac δ-endotoxin, has provided a novel ...
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MALE ACCESSORY GLAND FACTORS ELICIT CHANGE FROM ‘VIRGIN’ TO ‘MATED’ BEHAVIOUR IN THE FEMALE CORN EARWORM MOTH HELICOVERPA ZEA
... moth, Helicoverpa zea, we have found that the male accessory gland/duplex is required for evoking the post-mating depletion of sex pheromone but apparently not for the cessation of ...
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Data Generation and Utilization for Evaluating Helicoverpa zea (Lepidoptera: Noctuidae) Resistance Management in Bt Field Corn and Cotton through Computer Modeling
... The susceptible adult production estimates from non-Bt, Bollgard II, Bollgard, and Cry2Ab cottons will be used to estimate the relative fitness of all H. zea genotypes occurring on Bollgard II cotton in eastern ...
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Field Performance and Seasonal Efficacy Profiles of Transgenic Cotton Lines Expressing Vip3A and VipCot Against Helicoverpa zea (Boddie) and Heliothis virescens (F.)
... H. zea was the dominant species, but low levels of ...lower Helicoverpa armigera (Hübner) larval densities on Bt cotton lines GK19 (Cry1Ac+ Cry1Ab) and BG1560 (Cry1Ac) throughout the season compared with ...
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Bollworm (Helicoverpa zea Boddie) Behavior in non-Bt and Bt Cotton (Gossypium hirsutum L.).
... (both Helicoverpa species) related to the theory of optimal foraging suggests that bollworm move away from plant structures, or entire plants, that express higher amounts of Bt toxins (Gore et ...
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Fitness Studies and Cross Resistance Evaluations of an Eastern North Carolina Cotton Bollworm Strain (Helicoverpa zea) (Boddie) Tolerant to the Bacillus thuringiensis delta endotoxin Cry1Ac
... H. zea strain XYZ, had lower mortality than HZ 02, the control strain, for the surface treated ...H. zea control strain, HZ 02, compared to resistant strain XYZ based on plant tissue ...
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Susceptibility Profiles of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) to Deltamethrin Reveal a Contrast between the Northern and the Southern Benin
... bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is a key polyphagous pest infesting several crops such as cotton, tomato, maize, sorghum, chickpea, pigeon pea, pulses, vegetables and tomato crops ...
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Phylogenetic Analysis of Baculovirus Isolates from Diseased Insects in Southern Vietnam
... ra, Helicoverpa zea, and Helicoverpa ...coverpa zea specific isolates exhibited six single nucleotide polymorphic ...than Helicoverpa zea specific ...Vietnamese ...
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Characterization of the insecticidal properties of acetamiprid under field and laboratory conditions.
... Since the eradication of the bollworm, Anthonomus grandi,s in North Carolina, heliothines, predominantly the bollworm, Helicoverpa zea (Boddie), have emerged as the primary mid-to-late season insect pests ...
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Genetic Mechanisms Underlying Apimaysin and Maysin Synthesis and Corn Earworm Antibiosis in Maize (Zea mays L.)
... (Helicoverpa zea [Boddie]) larvae and are distinguished by their B-ring substitutions, with maysin and apimaysin being the di- and monohydroxy B-ring forms, ...
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Pheromone mediated modulation of pre flight warm up behavior in male moths
... Helicoverpa zea (Boddie 1850) were maintained at the University of Utah and reared on a modified pinto-bean diet (Shorey and Hale, 1965). Male pupae were separated and placed in environmental chambers ...
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