Reductions in soybean yield and quality from corn earworm
Conventional resistance of experimental maize lines to corn earworm
(Lepidoptera: Noctuidae), fall armyworm (Lepidoptera: Noctuidae), southwestern corn borer (Lepidoptera: Crambidae), and sugarcane borer (Lepidoptera: Crambidae).
can devastate the yield and appearance of the ear and are therefore a major concern for growers.
Model of corn earworm
(Lepidoptera: Noctuidae) development, damage, and crop loss in sweet corn.
These lines had significantly (p < 0.05) lower mean corn earworm
weights than the susceptible standard genotypes in each of three growing seasons (Mebrahtu et al., 2002).
Bt corn hybrids encoding CrylAb, Vip3Aa20, and mCry3A proteins have been approved for study under experimental conditions in Mexico, and the objective of this research was to evaluate the resistance of GM corn hybrids to corn earworm
in Sinaloa, Mexico.
Abbreviations: Bt, Bacillus thuringiensis; CEW, corn earworm
; ECB, European corn borer; ELISA, enzyme linked immunosorbent assay; FDA, Food and Drug Administration; F[B.sub.1], fumonisin [B.sub.1]; F[B.sub.2], fumonisin [B.sub.2]; F[B.sub.3], fumonisin B3: HPLC, high-performance liquid chromatography; PBS, phosphate buffered saline; PDA, Potato dextrose agar; R2, blister developmental stage of corn; R4, dough developmental stage of corn; USDA-ARS-NCAUR, United States Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research; V8, developmental stage of corn when eight leaves with collars are visible; VT, tasseling developmental stage of corn.
In cabbage looper and corn earworm
cells, the scientists found that genes like those known to be involved in repair of DNA damage in noninsect organisms may be operative, say McIntosh and Grasela.
Virulence of the entomopathogenic fungus, Nomuraea rileyi, to various larval stages of the corn earworm
, Helicoverpa armigera (Lepidoptera: Noctuidae).
Smith)], and the corn earworm
[Heliocoverpa zea (Boddie) (Lepidoptera: Noctuidae)].
Corn and tomatoes Call it a corn earworm
, call it a tomato fruitworm--it's the same beast in either case and likes both crops equally.
bassiana and several of Paecilomyces fumosoroseus--selected from the extensive culture collections of ARS and Mycotech--against the diamondback moth, fall armyworm, European corn borer, and corn earworm
. They also tested promising strains against the beet armyworm, black cutworm, cabbage looper, and imported cabbageworm.
zea (Boddie), attacks many economically important crops such as corn (as corn earworm
, Archer & Bynum 1994; Wiseman & Widstrom 1992), cotton (as cotton bollworm, Ellsworth & Bradley 1992), tomatoes (as tomato fruitworm, Walgenbach et al.
(1980) demonstrated the importance of orthodihydroxyl groups in corn earworm
When tobacco budworm (Heliothis virescens) and corn earworm
(Heliocoverpa zea) caterpillars chew on certain plants, chemical cues in their saliva cause the plants to send out defensive signals.