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Colorado Potato Beetle Resistance To Insecticides, Andrei Alyokhin, Mitchell Baker, David Mota-Sanchez, Galen Dively, Edward Grafius
Colorado Potato Beetle Resistance To Insecticides, Andrei Alyokhin, Mitchell Baker, David Mota-Sanchez, Galen Dively, Edward Grafius
Andrei Alyokhin
The Colorado potato beetle, Leptinotarsa decemlineata (Say), is widely regarded as the most important insect defoliator of potatoes. Its current range covers about 16 million km2 in North America, Europe, and Asia and continues to expand. This insect has a complicated and diverse life history, which is well-suited to agricultural environments, and makes it a complex and challenging pest to control. Dispersal, closely connected with diapause, feeding, and reproduction, allow the Colorado potato beetle to employ "bet-hedging" reproductive strategies, distributing its offspring in both space (within and between fields) and time (within and between years). The Colorado potato beetle played …
Susceptibility Of Imidacloprid-Resistant Colorado Potato Beetles To Non-Neonicotinoid Insecticides In The Laboratory And Field Trials., Andrei Alyokhin, Galen Dively, Megan Patterson, David Rogers, John Wollam
Susceptibility Of Imidacloprid-Resistant Colorado Potato Beetles To Non-Neonicotinoid Insecticides In The Laboratory And Field Trials., Andrei Alyokhin, Galen Dively, Megan Patterson, David Rogers, John Wollam
Andrei Alyokhin
Repeated use of neonicotinoid insecticides has resulted in the first reported cases of Colorado potato beetle (Leptinotarsa decemlineata (Say)) resistance to imidacloprid. In the laboratory we determined susceptibility of the imidacloprid-resistant Colorado potato beetles from a population in Southern Maine to other insecticides currently registered for use on potato. This population was about 30-fold resistant to imidacloprid and could not be effectively controlled by its applications. Control mortality was significantly higher for the imidacloprid-resistant larvae than for the susceptible larvae, suggesting that fitness disadvantages may be associated with the resistance trait. Resistant larvae exhibited significantly less mortality than susceptible larvae …