Experiments conducted during 1969 and 1970 near the upper Gulf Coast of Texas revealed that certain naturally occurring beneficial arthropods showed preference for certain cotton genotypes. Hirsute genotypes generally supported fewer beneficial arthropods than did early maturing, glabrous genotypes. Sampling of arthropods by a suction type (D-Vac®) sampler and whole-plant examination revealed that greater numbers of predators were usually found by whole-plant examination.