摘要：

Plant feeding enhanced survival and shortened developmental times and preoviposition period of the predaceous pentatomid Podisus maculiventris (Say). When potato foliage was provided in addition to prey (Colorado potato beetle, Leptinotarsa decemlineata (Say), larvae) and water, preimaginal survival increased by 27.5%. Also, developmental time from second instar to adult eclosion was reduced by 2.4 days, and the preoviposition period was shortened by 1.4 days. Adults of both sexes were significantly larger and males were significantly heavier when potato foliage composed part of the nymphal diet. Plant feeding has both positive and negative biological features that should be considered in evaluating predaceous hemipterans as biological control agents.

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