Diagnostic Assays Based on Esterase-Mediated Resistance Mechanisms in Western Corn Rootworms (Coleoptera: Chrysomelidae)
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چکیده
منابع مشابه
Diagnostic assays based on esterase-mediated resistance mechanisms in western corn rootworms (Coleoptera: Chrysomelidae).
Resistance to methyl-parathion among Nebraska western corn rootworm, Diabrotica virgifera virgifera LeConte, populations is associated with increased hydrolytic metabolism of an organophosphate insecticide substrate. An electrophoretic method to identify resistant individuals based on the staining intensity of esterase isozymes on nondenaturing polyacrylamide gels was developed. Three groups of...
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Organophosphate resistant and susceptible populations of the western corn rootworm, Diabrotica virgifera virgifera LeConte. were subjected to adult feeding bioassays with different combinations of insecticide and a cucurbitacin bait. Five technical grade insecticides (methyl-parathion, carbaryl, fipronil, bifenthrin and indoxacarb) were used in combination with Invite ECt as the feeding stimula...
متن کاملEvaluating Tripsacum-introgressed maize germplasm after infestation with western corn rootworms (Coleoptera: Chrysomelidae)
Corn rootworm larvae consume maize root tissues, thus negatively impacting plant physiology and function (Riedell 1990; Hou et al. 1997; Riedell and Reese 1999), and impeding harvesting due to stalk lodging (Sutter et al. 1990). Ultimately, larval rootworm feeding reduces yield (Sutter et al. 1990; Spike and Tollefson 1991), and can cause significant economic losses (Metcalf 1986). Pesticides, ...
متن کاملNative resistance to western corn rootworm (Coleoptera: Chrysomelidae) larval feeding: characterization and mechanisms.
Seven maize, Zea mays L., genotypes selected for native resistance to western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), larval feeding damage (SUM2068, SUM2162, CRW3(S1)C6, NSS1 x CRW3(S1)C6, PI583927, CRW2(C5), and AR17056-16) were evaluated along with three control maize genotypes in the field for plant damage, larval recovery, adult emergence, root si...
متن کاملField screening maize germplasm for resistance and tolerance to western corn rootworms (Col.: Chrysomelidae)
In the hopes of lessening the current reliance on soil insecticides, developing a viable alternative for transgenic maize hybrids, and providing sustainable options for Europe, researchers recently have been developing novel maize lines that exhibit resistance and/or tolerance to corn rootworm larvae. Here we report the results of a 2-year field experiment in a northern growing region assessing...
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ژورنال
عنوان ژورنال: Journal of Economic Entomology
سال: 2002
ISSN: 0022-0493,0022-0493
DOI: 10.1603/0022-0493-95.6.1261