Efficacy of Paecilomyces fumosoroseus Preparation against Whitefly on Tomato in the Greenhouse

Abstract

Paecilomyces fumosoroseus preparation (PFR-97™ 20% WDG) was applied three times weekly against Bemisia argentifolii and Trialeurodes vaporariorum on tomato in greenhouses in July in Experiment 1 and May-June in Experiment 2, respectively. In Expt. 1, effective control was not obtained in some period because of high temperature (>35°C) and insufficiency of high humidity (>80%). In Expt. 2, the most effective control was obtained due to optimal temperature and humidity.