Efficacy of Selected Insecticides and Natural Preparations Against Leptinotarsa decemlineata

Variable concentration of soil-applied insecticides in potato over time: implications for management of Leptinotarsa decemlineata.

BACKGROUND Select populations of Colorado potato beetle, Leptinotarsa decemlineata, in Wisconsin have recently become resistant to soil-applied neonicotinoids in potato. Sublethal insecticide concentrations persisting in foliage through the growing season may select for resistance over successive years of use. Over the 2 years of this study, the aim was to document the in-plant insecticide conc...

Biological Efficacy of Some Biorational and Conventional Insecticides in the Control of Different Stages of the Colorado Potato Beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)

Osman M.A.M. (2010): Biological efficacy of some biorational and conventional insecticides in the control of different stages of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae). Plant Protect. Sci., 46: 123–134. The biological efficacy of some biorational and conventional insecticides against different stages of Colorado potato beetle, Leptinotarsa deceml...

Carbon metabolism of Beauveria bassiana may be related to virulence against Plutella xylostella and Leptinotarsa decemlineata

Botanical insecticides for controlling agricultural pests: piperamides and the Colorado Potato Beetle Leptinotarsa decemlineata say (Coleoptera: Chrysomelidae).

The efficacy of extracts from two Piperaceae species, Piper nigrum L. and P. tuberculatum Jacq. were evaluated using larvae and adults of the Colorado Potato Beetle Leptinotarsa decemlineata (Say). Young larvae and neonates were the most susceptible; a 24-h LD(50) of 0.064% extract of P. tuberculatum was determined for 4-day-old larvae, while 0.05% extract of P. nigrum reduced larval survival u...

Modeling Colonization of Overwintered Immigrant Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Colonization of potato (Solanum tuberosum [L.]) Þelds by Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), has often been recognized as a process that initially results in an edge-biased spatial pattern. We modeled this spatial process by measuring distance of immigration for individual overwintered adults.Distancewasmeasured to the nearest Þeld edge or to the...