A36 



capacity to increase its numbers within one year to the levels that existed in 

 1964. For this leason, present control efforts should be continued in order 

 to prevent the bo LI weevil from becoming reestablished on the High Plains. 



853. , and Haney, R. L. 1973. Cotton yields climb, costs drop through pect 



management s /stems. Tex. Agric. Prog. 662, 19(Summer): A-7. 

 The Texas Department of Corrections Pest Management Systems consisted of 

 the following: 1. Boll weevil. (a) Early stalk destruction, (b) Insecticide 

 treatments in the fall for diapause control; 2. Fleahoppers. (a) Careful 

 sampling to make control decisions, (b) Low dosages of insecticides used if 

 needed, and (c) If insecticide used, make applications no later than first 3 

 weeks of fruiting; 3. Budworms-bollworms. (a) Careful sampling to make control 

 decisions, and (b) Tolerate high damage level before initiating chemical control 

 (15% damaged squares). Hopefully, use of insecticide is avoided; and 4. Advan- 

 tage, (a) Increase earliness of crop, (b) Increase yields (c) Lower insecticide 

 cost, (d) Decrease pollution, and (e) Increase producer profits. 



854. ; Jones, D.; and Dean, D. A. 1979. Failure of the red imported fire 

 ant to reduce entomophagous insect and spider abundance in a cotton 

 agroecosystem. Environ. Entomol. 8: 976-981. 

 Large numbers of the red imported fire ant, Solenopsls invlcta Buren, were unable 

 to pauperize the prTHdator arthropod fauna of a cotton field in east Texas. None 

 of the 47 taxa sampled was significantly reduced as a result of S^. invicta preda- 

 tion. Because of its predatory habits on boll weevils, Anthonomus grandis grandis 

 Boheman and Heliothis spp., and its failure to simplify the predator fauna, S_. 

 invlcta must be considered an important predator in cotton agroecosystems where 

 it is abundant. The evidence suggests that S^. invicta is a fairly specialized 

 predator though probably a polyphagous scavenger. 



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