Introduction

The sweetpotato whitefly (a.k.a silverleaf whitefly) is a key pest of many vegetable crops grown in the fall in south Georgia. It is particularly damaging in squash, as even low densities of this pest can result in silverleaf symptoms. The neonicotinoid insecticides have been the cornerstone of whitefly management for more than a decade and results in 2006 trials suggested that resistance may be developing in south Georgia. Thus, it is imperative that we evaluate additional chemistries for control of whiteflies. This test was conducted to evaluate the efficacy of soil applied and foliar applied insecticides for control of sweetpotato whitefly. Materials and Methods A small plot trail was conducted at the UGA Horticulture Farm in Tifton, Georgia. Squash (var. Destiny III) was direct seeded, with a single row on six foot beds. Once plants emerged, plots were established in a RCB design with three replications. Experimental plots were one row by 19 feet. Although the rows were on six foot beds, for application purposes they were treated as if they were on 3 foot beds.