powdery mildew of zucchini

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.