162 



tion vould be served to prevent his interference with the program. This re- 

 sulted largely from the fact that he did not fully understand the goals of 

 the program, and after they were fully explained to him we did not have to 

 ask. the court to serve the injunction. 



311. Gurrola, C. G. 1973. Advances in chemical control of the cotton weevil, 

 Anthonomus grandis , in Iguala, Guerrero. Folia Entomol. Mex. 25-26: 73. 

 (In Spanish) . 



In efficacy tests, the most effective insecticides against the cotton boll 

 weevil were Thiodan + methyl parathion (30-15), Guthion (25%), Padan (50%) 

 and Gus-Gus (200-200) . Somewhat less effective were methyl parathion (50%) + 

 malathion (96%) LV, PP 511 and Cytel 1000. The mixture of Endrin + methyl 

 parathion were very toxic to man and warm blooded animals. 



312. Gutierrez, A. P.; Wang, Y.; arid Daxl, R, 1979. The interaction of 

 cotton and boll weevil - A study of co-adaptation. Can. Entomol. 

 lll::357-366. 



The growth parameters for cotton ( Gossypium hirsutum L.) were examined via 

 optimization studies to determine if the observed values were optimal for the 

 season lengths and weather patterns found in California and Nicaragua. The 

 parameters observed for Nicaraguan cotton were further examined to determine 

 if predation by boll weevil ( Anthonomus grandis Boh.) of small cdtton fruit 

 (squares) could explain the observed discrepancies. All of the observed 

 growth parameters except the fruit bud production rate for the Acala Sj II 

 variety of cotton which is grown in California appeared to be reasonably 

 optimal for Calif ornla condition (i.e. boll weevil does not occur in 

 California). By contrast, the parameters for the Nicaraguan variety were 

 sub-optimal if boll weevils was exlcuded from the analysis, but near optimal 

 if the population dynamics of pest were included. 



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