Diapausing and nondiapausing adults of the southern green stink bug, Nezara viridula (L.), had supercooling points in the range from -10.4 to -11.7°C. Lethal exposure times of adult stink bug are given for -5.0, -7.5, and -10.0°C. No difference in cold tolerance was found between diapausing and nondiapausing stink bugs. Overwintering survival of confined adults at Charleston, SC, was high or 0 depending on severity of low temperatures.
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Kent D. Elsey (1993) studied this question.
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