Chemical Termination and Irrigation Cut-off to Reduce Overwintering Populations of Pink Bollworms123

Abstract
The numbers of diapausing larvae of Pectinophora gossypiella (Saunders) found in soil and trash in the fall after harvest in cotton were reduced by early irrigation cut-off and chemical termination treatments. Also, the number of moths that emerged the following spring was reduced by the combination of the 2 treatments. The early irrigation termination reduced pink bollworm infestations in bolls and Heliothis spp. oviposition in the fall, but there was no effect due to the chemical termination.