Fumigation of Boll Weevil Pupae with Bisazir to Induce Sterility1

Abstract
When pupae of Anthonomus grandis grandis Boheman were fumigated for 5 h in a circulating, saturated atmosphere of bisazir, 99% of the males were sterilized, and egg laying by treated females outcrossed with normal weevils was reduced by 90.6%. Sterile males transfered 11.8% more sperm than control males the 1st week post treatment but 42.6% less the 2nd week.

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