Evaluation of <I>Ostrinia nubilalis</I> (Lepidoptera: Crambidae) Neonate Preferences for Corn and Weeds in Corn
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چکیده
منابع مشابه
Evaluation of Ostrinia nubilalis (Lepidoptera: Crambidae) neonate preferences for corn and weeds in corn.
Choice tests were conducted to determine feeding preferences of European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), neonates for 15 species of plants. Percentage of neonates accepting (found on) each leaf disc after 24 h was measured using choice tests. Initially, nine species of plants were evaluated. The following year, 10 plant species were evaluated during O. nubilali...
متن کاملLate-instar European corn borer (Lepidoptera: Crambidae) tunneling and survival in transgenic corn hybrids.
Field studies were conducted in 1996 and 1997 to determine injury by and survival of late-instar European corn borer, Ostrinia nubilalis (Hübner), on genetically altered Bacillus thuringiensis Berliner corn, Zea mays L. Cry1Ab events 176, Bt11, MON810, and MON802; Cry1Ac event DBT418; and Cry9C event CBH351 were evaluated. Plants of each corn hybrid were manually infested with two third-, fourt...
متن کاملQuantitative assessment of biotic mortality factors of the European corn borer (Lepidoptera: Crambidae) in field corn.
Five treatments were used to exclude naturally occurring predators and parasitoids, based on body size and flight ability, to assess their effect on Ostrinia nubilalis (Hübner) populations on corn plaits. Two initial O. nubilalis egg densities (one egg mass and three egg masses per plant) were assigned to each treatment. Egg predation was higher in uncaged treatments than in caged treatments. F...
متن کاملOviposition by European Corn Borer (Lepidoptera: Crambidae) in Response to Various Transgenic Corn Events
Oviposition preference by European corn borers, Ostrinia nubilalis (Hübner), for or against transgenic corn would influence amounts of refuge required for resistance management. The objective of this research was to determine if various Bacillus thuringiensis (Bt) corn transgenic events influence O. nubilalis oviposition. All commercially available events (currently 5) were evaluated, plus 1 ex...
متن کاملFirst-Flight Adult European Corn Borer (Lepidoptera: Crambidae) Distribution in Roadside Vegetation Relative to Cropping Patterns and Corn Phenology
The European corn borer, Ostrinia nubilalis (Hübner), is a serious pest of commercial maize throughout the U.S. Corn Belt. Adults in the central and eastern Corn Belt aggregate in grassy areas around and within the cornfield where they spend the daylight hours resting and where mating activity occurs at night. Mated females leave the aggregation sites at night to oviposit in cornfields, thus us...
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ژورنال
عنوان ژورنال: Journal of Economic Entomology
سال: 2006
ISSN: 0022-0493,0022-0493
DOI: 10.1603/0022-0493-99.6.1987