|Chu, Chang Chi|
Submitted to: Journal of the Agricultural Association of China
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/1/1999
Publication Date: N/A
Interpretive Summary: We studied silverleaf whitefly density - lint yield and lint stickiness relationships in the southwestern irrigated desert conditions. Results showed for the highest lint yield and lowest lint stickiness, the nymph densities were 0.3 and 1.3 nymphs/cm sq of leaf disk, respectively or 4 and 8 adults per leaf-turn from fifth node leaves.
Technical Abstract: Studies were conducted to determine the effect of chemical control on Bemisia argentifolii Bellows and Perring populations, cotton yield and honeydew lint contamination. Different population densities of B. argentifolii were established with insecticide treatments during the growing season. The studies were conducted at the Irrigated Desert Research hStation, Brawley, CA. The highest cotton lint yields and lowest lint stickiness occurred when B. argentifolii nymph densities were 0.3 and 1.3 nymph/cm sq of leaf disk, respectively or 4.1 and 7.5 adults per leaf-turn from fifth main stem node leaves, respectively. Similar value (1.4 adults/cm sq was given for yellow sticky card trap adult catches.