Cotton producers in the Lower Rio Grande Valley (LRGV) of Texas face continuing economic pressures arising from increasing costs of productive inputs, yield-reducing infestations of insecticide-resistant pests, and often adverse climatic conditions. The input price increases in the LRGV are similar to those in other production regions of the U.S. However, insect problems arising from the LRGV climate are unique. LRGV farmers have been unable to control late-season tobacco bud-worm infestations which often reach damaging levels when beneficial insects are destroyed by insecticide treatments for boll weevils . These late-season insect infestations are a result of the predominantly excessive rainfalls which occur during the harvest months of August and September. Moreover, high rainfall during harvest reduces both the quality and level of cotton yields .