The most pronounced damage done by adult tarnished plant bugs, Lygus lineolaris (Palisot de Beauvois) , to cotton plants of the Stoneville 7A variety occurred in field cages that contained large introduced populations from the time the plants began to square until they began to bloom. Heavy season-long infestations reduced yields as much as 1 bale per acre. Weekly releases of ad until in the cages at a rate of 25 per 100 plants for 4 consecutive weeks decreased the number of blooms and the yield of seed cotton at the first picking but did not reduce the total yield. However, when 2 applications of insecticide were used to control the infestation, neither the number of blooms nor the yield was reduced. Infestations introduced after the first bloom decreased yields at the second picking. Abnormal cotton plants were found in all infested cages, but they were not the deformed plants usually meant by the term "crazy cotton."
Document Type: Research Article
Publication date: February 1, 1968
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