Abstract
Infestations of the strawberry spider mite, Tetranychus atlanticus McGregor, artificially established in a replicated small-plot field experiment late in the growing season of 1962 reduced total yield of seed cotton 13% to 22%. Boll size was reduced, seed viability lowered, and lint production and fiber maturity were significantly impaired. Introduction of mites at 3 population levels resulted in high and only slightly different population densities 10 days later. Mite feeding produced rapid and pronounced reddening of the leaves and total defoliation within 40 days irrespective of the number of mites used in establishing the infestation. High daily temperatures and limited rainfall appeared to favor mite development.
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