Mating and Sterility of Male Boll Weevils 1 Treated with Busulfan Plus Hempa 2

Male Anthonomus grandis Boheman fed 0.08% busulfan + 0.4% hempa for 6 days were as competitive as untreated males about ½ the time (occurripg randomly), and ½ the time the treated males were ¼–⅓% as competitive as untreated males. After an average of 7 matings, the treated males had depleted their supply of sperm. Determinations of sterility based on testes examination were in full agreement 91% of the time with determinations based on egg hatch and adult emergence.