Abstract
From 0.9–1.8% of the cotton blooms in 2 fields at Tempe, AZ were infested during the major flowering period by larvae of the pink bollworm, Pectinophora gossypiella (Saunders), during early July; the averages were 0.34–0.80 rosetted blooms/acre. Larvae collected from resetted blooms and held in the laboratory at constant temperature pupated 4.53 days after the day of flowering. Larvae left the flowers the day after flowering. In the field, the pupal stage was 7.29 days. About 40% fewer infested flowers made bolls but the weight of bolls developed from these flowers was not affected.
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