p r h i p b R ( 1 g W z i H c c Seasonal abundance, dispersal, and overwintering f the 12-spotted ladybird beetle, Coleomegilla macuata (DeGeer), in the mid-Atlantic states were investiated to assess the potential to manipulate the habitat f this predator to increase its impact on Colorado otato beetle, Leptinotarsa decemlineata (Say), mangement in commercial potato plantings. C. maculata opula...

The Colorado potato beetle, Leptinotarsa decemlineata (Say) Order Coleoptera and the potato leafhopper, Empoasca fabae (Harris) Order Homoptera, are the major insect pests of potato in eastern North America. In two years of field trials, we compared the effectiveness of three pest management options for the control of Colorado potato beetle and potato leafhopper: natural host plant resistance (...

Visual responses of adult male and female Colorado potato beetles CPB, Leptinotarsa decemlineata (Say) (Coleoptera, Chrysomelidae) to 10 × 20 cm coloured paper-boards, beetle-sized coloured beads or dead CPB, and to combinations of these in laboratory experiments in an arena of 52 cm diameter were investigated. In addition, visual discriminatory abilities of males exposed to female-specific sub...

Survival and fecundity of Colorado potato beetle adults, Leptinotarsa decemlineata (Say), that had or had not fed previously on non-transgenic potato before exposure to transgenic potato containing the Bacillus thuringiensis subsp. tenebrionis Cry3A toxin (Bt) was investigated. In the laboratory, < 5% of first-generation adults survived after two weeks when restricted to Bt foliage since eclosi...