Sterility of Boll Weevils in the Field Following Treatment with Diflubenzuron and Gamma Irradiation1

Abstract
Over 600,000 mixed sex sterile Anthonomus grandis grandis Boheman that had been sterilized by feeding them diflubenzuron treated diet for 6 days and then irradiating them were released in 2.4 ha of cotton in south Florida. Results showed that a boll weevil population was not established in the field which indicated that all of the insects were sterilized.

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