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Eggs of two predatory stink bugs, Podisus maculiventris (F.) and Perillus bioculatus (Say), hatched normally in cardboard capsules (“trichocaps”), but fewer nymphs came out of the capsules at 18°C compared with those kept at 25°C, and those that did come out took twice as long to do so at the cooler temperature. This may help explain inconsistent results in field trials using these predators to control...