Colorado potato beetle

Alyokhin, A. V. and D. N. Ferro. 1999. Reproduction and dispersal of summer-generation Colorado potato beetle (Coleoptera: Chrysomelidae). Environmental Entomology 28: 425-430.

Abundance Factors, Insecticides /

Colorado potato beetle dispersal and reproduction was investigated under field and laboratory conditions. Movement and mating of newly emerged summer-generation Colorado potato beetle adults was monitored in the field using a mark-recapture technique, and beetle mating within experimental plots was recorded. The number of degree-days (DD) required for the beetles to become reproductive was tested […]

Alyokhin, A. V. and D. N. Ferro. 1999. Reproduction and dispersal of summer-generation Colorado potato beetle (Coleoptera: Chrysomelidae). Environmental Entomology 28: 425-430. Read More »

Alyokhin, A. V. and D. N. Ferro. 1999. Relative fitness of Colorado potato beetle (Coleoptera: Chrysomelidae) resistant and susceptible to the Bacillus thuringiensis Cry3A toxin. Journal of Economic Entomology 92: 510-515.

Abundance Factors, Insecticides /

Laboratory experiments were conducted to compare relative fitness of strains of Colorado potato beetle resistant and susceptible to Bacillus thuringiensis subsp. tenebrionis Cry3A toxin. Net replacement rates and intrinsic rates of population increase were calculated for resistant and susceptible populations. During the experiment, susceptible males on average copulated 13.3 ± 1.5 times, while resistant males copulated only 8.0 ± 1.0 times. Susceptible females

Alyokhin, A. V. and D. N. Ferro. 1999. Relative fitness of Colorado potato beetle (Coleoptera: Chrysomelidae) resistant and susceptible to the Bacillus thuringiensis Cry3A toxin. Journal of Economic Entomology 92: 510-515. Read More »

Ferro, D. N., A. V. Alyokhin, and D. B. Tobin. 1999. Reproductive status and flight activity of the overwintered Colorado potato beetle. Entomologia Experimentalis et Applicata 91: 443-448.

Abundance Factors /

Mating behavior of post-diapause Colorado potato beetles, Leptinotarsa decemlineata (Say), was observed within an overwintering site, a rotated potato field, newly colonized potato plants, and under laboratory conditions. The influence of spring mating on beetle flight in the presence and in the absence of host plants was investigated using a computer-linked flight mill system. Diapause was terminated

Ferro, D. N., A. V. Alyokhin, and D. B. Tobin. 1999. Reproductive status and flight activity of the overwintered Colorado potato beetle. Entomologia Experimentalis et Applicata 91: 443-448. Read More »