Whitcomb, W. H., and K. Bell. 1964. Predaceous insects, spiders and mites of Arkansas cotton fields. Ark. Agric. Exp. Stn. Bull. 690: 1-84. Wilson, T. P., and P.M. Room. 1982. The relative efficiency and reliability of three methods for sampling arthropods in Australian cotton fields. J. Aust. Entomol. Soc. 21:175-181. and 1983. Clumping patterns of fruit and arthropods in cotton with implications for binomial sampling. Environ. Entomol. 12:50-54.