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BIBLIOGRAPHY^ 

 A 



1. Abies, J. R.) House, V. S . ;. Jones, S. L.; and Bull, D. L. 1980. 

 Effectiveness of dif lubenruron on boll weevils in central Texas 

 River Bottoms area. Southwest. Entomol. Suppl. I: 15-21. 



In tests during 3 consecutive years, applications of the insect growth regulator 

 (IGR) diflubenzuron caused substantial reductions in adult boll weevil emergence 

 fro-.r field-collected infested squares. Generally, naximum reductions were 

 produced 3-6 wk after initiation of treatments after vhich an apparent influx of 

 untreated weevils reduced the effects of the IGR. Furthermore, results in 1976 

 demonstrated a distinct difference in weevil responses to different doses of the 

 IGR. In that year, season averages of boll weevil mortality were 46.4, 67.4, 

 and 77.3% at the 35, 70, and 140 g a.i./ha rates, respectively. We conclude 

 that optimum use of diflubenzuron in the central Texas River Bottoms and other 

 areas may involve other strategies such as area-wide treatments, planting of 

 rapidly fruiting determinant cotton varieties, and fall diapause control 

 programs . 



2. ; Jones, S. L.; and Bee, M. J. 1977. Effect of diflubenzuron on beneficial 



arthropods associated with cott?ton. Southwest. Entomol. 2: 66-72. 



Nine aerial applications of diflubenzuron, a boll weevil larval growth 

 regulator, at rates of 0.03, 0.06, and 0.12 lb/A a.i. to 5-acre plots of cotton 

 did not appear to adversely affect populations of beneficial arthropods. Also, 

 in laboratory studies the parasitic wasp, Trichogramma pretiosuro Riley, was not 

 affected, but diflubenzuron was detrimental to 2 species of predators, the 

 convergent lady beetle, Hippodamia convergens Guerin-Meneville, and the common 

 green lacewing, Chrysopa carnea Stephens. Feeding and topical treatments at 



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