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the chrysomelid species leptinotarsa decemlineata (say), commonly known as colorado potato beetle (cpb), is an important pest of potato and other solanaceous crops. the effects of precocene i and ii, juvenile hormone inhibitors, on morphological characteristics of the chemoreceptor organs of antennae and mouthparts of l. decemlineata larvae were studied in the laboratory. different doses of pre...

Abstract Background The Colorado potato beetle (CPB) Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) is one of the most damaging pests potatoes all over world as well in Turkey. Both adults and larvae this pest feed on foliage potatoes, often cause complete defoliation plants, with considerable yield losses up to 60%. Chemical control has induced selection resistant CPB populations ...

Positive selection is thought to contribute to the functional diversification of insect-inducible protease inhibitors in plants in response to selective pressures exerted by the digestive proteases of their herbivorous enemies. Here we assessed whether a reciprocal evolutionary process takes place on the insect side, and whether ingestion of a positively selected plant inhibitor may translate i...

abstract: colorado potato beetle (cpb), leptinotarsa decemlineata (say),is the most important insect pest of potato in iran. if local potato varieties vary in susceptibility to the pest, host plant resistance may provide management benefits to potato growers. a life table study was carried out to determine the relative suitability of four common potato varieties (agria, marfona, savalan and sat...