silver leaf of zucchini

Silver leaf-this symptom is caused by the feeding of the silver leaf whitefly. This whitefly does not overwinter in Indiana. Thus, this symptom is not common and will usually not occur until late in the season. The proper identification of the silver leaf whitefly is critical in the diagnosis of this problem. The silver leaf whitefly may feed on several vegetable crops. 

Figure 1. Silver leaf of zucchini. Figure 1. Silver leaf of zucchini.
Figure 2. Silver leaf of zucchini. Figure 2. Silver leaf of zucchini.
Figure 3. Silver leaf of zucchini. Figure 3. Silver leaf of zucchini.