powdery mildew of zucchini

Powdery mildew-This disease is easily recognized by the white, talc-like appearance of lesions on leaves and stems. Powdery mildew will usually not be severe until plants have been established for some time. Since zucchini plants are often continually planted, by the time the disease is severe on old plants, younger plants are in production. 

Figure 1. Powdery mildew of zucchini. Figure 1. Powdery mildew of zucchini.
Figure 2. Powdery mildew of zucchini. Figure 2. Powdery mildew of zucchini.
Figure 3. Powdery mildew of zucchini. Figure 3. Powdery mildew of zucchini.
Figure 4. Powdery mildew of zucchini. Figure 4. Powdery mildew of zucchini.