Whitefly Control with Foliar Insecticides in Cantaloupes

Abstract

Courier, Knack, Assail, Calypso, and Oberon treatments on cantaloupe were effective in maintaining reduced numbers of WF eggs, immatures, and adults for 30 DAT. After 30 DAT, all treatments showed that WF adult counts began to increase. Courier, Knack, Assail, Calypso, and Oberon treated cantaloupe leaves had adult WF counts of one-half or less that of the untreated check and remaining treatments. The pyrethroid plus endosulfan treatments were effective for 7 to 13 DAT in reducing immature WF. After 21DAT, the pyrethroid plus endosulfan treatments and Actara showed a greater increase in the numbers of eggs, immatures, and adults compared to Courier, Knack, Assail, Calypso, and Oberon treatments. The seasonal average number of eggs, immatures, and adults was the least on Assail treated cantaloupes. Knack, Courier, Calypso, and Oberon treated cantaloupes consistently had less eggs, immatures, and adults compared to the untreated check.