480 



took focus on a more updated horizon of cotton production. It bore little resem- 

 blance to 1900; and we realized hat options were open that were never imagined 

 at the turn of the century. Teclinology, shifts in cotton acreages, and under- 

 standings had come a long way — and from this realization the joint efforts of 

 growers, extension and research personnel have hammered out production strategies 

 that appear to face insect problems in aa integrated pest management manner. 

 The paper briefly chronicles some of this redirection in the State. 



948. . 1980. Earliness in cotton and escape from the boll weevil. Iin 

 Biology and Breeding for Resistance to Arthropods and Pathogens in 

 Agricultural Plants. Tex. Agric. Exp. Stn. Misc. Publ. MP-1451, pp. 

 113-123. 



Where boll weevils are delayed in their buildup to injurious numbers until the 

 second generation, rapid-fruiting in cotton can allow substantial lint produc- 

 tion. Experiments have established that if the infestation is so delayed, a 

 large part of the crop will be in the boll stage; and the weevil is much less 

 a pest to bolls than to squares. As a boll grows older each day, so decreases 

 the probability it will be damaged by the pest: The more rapid bolls are set 

 and accumulated, the greater the yield possibilities. Certain genotypes and 

 narrow-row planting schemes can hasten the acquisition ol bolls earlier in the 

 fruiting sequence. One commercial variety, TAMCOT SP-37, has demonstrated 

 that it suffers less boll damage than several other cottons. 



949. , and Bottrell, D. G. 1970. Infestations of boll weevils in isolated 

 plots of cotton in Texas, 1960-59. J. Econ. Entomol. 63: 1646-1650. 



Studies of Infestation patterns of overwintered and summer-generations of 

 Anthonomus grandis Boheman were carried out in Texas from 1960 to 1969 in Iso- 

 lated plots of cotton. Movement of overwintered insects to the plots was de- 

 tected from the last week in May until late June. Generally, a period of peak 



.J 



