240 

 larva to bud tissue is discussed. 



465. Kirk, I. W. , and Bottrell, D. G. 1969. A mechanical sampler for estimating 

 boll weevil populations. J. Econ. Entomol. 62: 1250-1251. 



Many cotton fields must be surveyed thoroughly to evaluate effectiveness of the 

 High Plains reproductive-diapause boll weevil, Anthonomus grandis Boheman, control 

 program. To meet this need, a tractor-mounted machine was constructed for evalua- 

 tion in the reproductive-diapause control zone. The design of the experimental 

 machine was similar in principle to that of the commercial Nisbet insect-collecting 

 machine sold as a control device throughout the cotton belt in the 1940' s. The 

 machine produced an air stream across a row of plants to dislodge insects into a 

 collection bag. Sampling of boll weevil populations with mechanical methods de- 

 scribed here reduced the labor requirements for population estimates by 90%. 

 This machine, with further adaptation and development, has the potential for 

 obtaining reliable boll weevil population estimates quickly and inexpensively. 



466. Kirk, V. M. , and Taft, H. H., Jr. 1970. Beetles found in woods trash 

 during winter boll weevil surveys. U.S. Dep. Agric. Prod. Res. Rep. 

 119, 12 pp. 



Samples of woods trash collected in the -Stall and spring in South Carolina were 

 ,-examined to determine the numbers of boll weevils ( Anthonomus grandis Boheman) 

 entering hibernation sites and surviving the winter. The iraterial was also 

 examined for all other species of beetles. Of 405 species found, representing 

 41 families of beetles, 35 species are well-known pests. Many others are from 

 families that include serious pests. Twenty-one species of lady beetles 

 (Coccinellidae) and over 100 species from families that are mostly predators 

 on other insects were identified. 



