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as much sperm as females mated to untreated males. Thus, considering 

 spermathecal filling and mating frequency, treated males transferred only 

 ca. 1/6 as much sperm as untreated males. When paired with females imme- 

 diately after treatment, treated males inseminated an average of 18.3 9 

 before aspermia occurred; however, when treated males were first held without 

 females for 10 days, they were capable of inseminating an average of only 

 4.1 9. . . 



710. , and Earle, N. W. 1976. Sperm production in normal vs. sterile 



boll weevils. J. Econ. Entomol. 69: 609-613. 

 Newly emerged normal males of Anthonomus grandis Boheman contained only 

 4000 (mena) sperm. Sperm production rapidly increased, reaching a fairly 

 constant rate of ca. 1.38 million sperm/day after 6-7 days. All sterili- 

 zation treatments drastically reduced sperm production. Males treated as 

 adults with average fractionated dose of 6800 rad produced 2.66 million 

 sperm during their life time. Weevils treated with fractionated doses 

 of 4000 rad combined with adult feeding on 0.2% hempa diet, and males 

 treated with average fractionated doses of 5850 rad produced ca. 3/4 

 and 1/5 as many sperm as males irradiated as adults uith average frac- 

 tionated doses of 6800 rad, respectively. Males irradiated as pupae 

 with a fractionated dose of 6300 rad inseminated ca. 1/2 as many females 

 as males that received the same treatment as adults. When treated males 

 were held without females for 3 days or more, they inseminated only ca. 1/2 

 as many females as males that were provided females immediately after treat- 

 ment . 



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