Table 3.

Logistic regression results indicating the effects of photoperiod, population and temperature on diapause induction of L. striatellus

Effect	DF	χ2	P
Photoperiod	1	67.18	<0.0001
Population	2	116.75	<0.0001
Temperature	1	94.11	<0.0001
Photoperiod * Population	2	25.77	<0.0001
Photoperiod * Temperature	1	34.55	<0.0001
Population * Temperature	2	47.72	<0.0001
Photoperiod * Population * Temperature	2	31.52	<0.0001