Distribution of two rotation-resistant corn pests in eastern Iowa and effects of soybean varieties on biology of Diabrotica virgifera virgifera
نویسندگان
چکیده
20 Introduction 20 Methods 25 Results 30 Discussion 33 Acknowledgments 38 Reference Cited 39 CHAPTER 3. EFFECT OF SOYBEAN VARIETIES ON WESTERN CORN ROOTWORM SURVIVAL AND FECUNDITY 60 Abstract 60 Introduction 60 Methods 64 Results 67 Discussion 69 Acknowledgments 73 Reference Cited 7360 Introduction 60 Methods 64 Results 67 Discussion 69 Acknowledgments 73 Reference Cited 73 CHAPTER 4. GENERAL CONCLUSIONS 85
منابع مشابه
Abundance and distribution of western and northern corn rootworm (Diabrotica spp.) and prevalence of rotation resistance in eastern Iowa.
The western corn rootworm Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae) and the northern corn rootworm Diabrotica barberi Smith & Lawrence (Coleoptera: Chrysomelidae) are major pests of corn (Zea mays L.). Historically, crop rotation has been an effective management strategy, but both species have adapted to crop rotation in the Midwest. For both species in eastern Iowa, we...
متن کاملEffect of soybean varieties on survival and fecundity of western corn rootworm.
The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a major pest of corn (Zea mays L.) in North America and has evolved resistance to crop rotation by ovipositing in alternate crops such as soybeans [Glycine max (L.) Merr.]. Through experiments with plants grown in the greenhouse and the field, we tested whether soybeans with resistance to the soybe...
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As pest species may evolve resistance to chemical controls, they may also evolve resistance to cultural control methods. Yearly rotation of corn (Zea mays) with another crop interrupts the life cycle of the western corn rootworm beetle (Diabrotica virgifera virgifera, Coleoptera: Chrysomelidae), but behavioral resistance to crop rotation is now a major problem in the Midwest of the USA. Resista...
متن کاملRole of a γ-aminobutryic acid (GABA) receptor mutation in the evolution and spread of Diabrotica virgifera virgifera resistance to cyclodiene insecticides.
The western corn rootworm, Diabrotica virgifera virgifera, is a damaging pest of cultivated corn that was controlled by applications of cyclodiene insecticides from the late 1940s until resistance evolved ∼10 years later. Range expansion from the western plains into eastern USA coincides with resistance development. An alanine to serine amino acid substitution within the Rdl subunit of the gamm...
متن کاملEuropean populations of Diabrotica virgifera virgifera are resistant to aldrin, but not to methyl-parathion
The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a major pest of cultivated corn in North America and has recently begun to invade Europe. In addition to crop rotation, chemical control is an important option for D. v. virgifera management. However, resistance to chemical insecticides has evolved repeatedly in the USA. In Europe, chemical control...
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