cucumber diseases
Anthracnose
Figure 1. Anthracnose lesions on cucumber leaves. Note jagged margin of lesions. 
Figure 2. Anthracnose lesions on cucumber leaves. Note that some lesions have a shot-hole appearance. Bacterial wilt
Figure 1. Striped cucumber beetles feeding on cucumber. 
Figure 2. Bacterial wilt of cucumber. 
Figure 3. Bacterial wilt of cucumber. 
Figure 4. Cucumber beetle feeding visible on cucumber leaf affected by bacterial wilt. 
Figure 5. Striped cucumber beetle on cucumber leaf with bacterial wilt. Charcoal rot
Figure 1. Charcoal rot of cucumber. Plant wilt is often the first symptom observed. 
Figure 2. Charcoal rot of cucumber. Plant wilt is visible and lesion on lower stem. 
Figure 3. Charcoal rot of cucumber. Light gray lesion on stem with micro-sclerotia shown. 
Figure 4. Charcoal rot of cucumber. Downy mildew
Figure 1. Downy mildew of cucumber. Note angular chlorotic lesions. 
Figure 2. Downy mildew of cucumber. Note angular chlorotic lesions. 
Figure 3. Downy mildew of cucumber. 
Figure 4. Downy mildew of cucumber. Note dark, sporulation visible on the underside of the leaf. 
Figure 5. Downy mildew of cucumber. Note chlorotic and necrotic lesions. Gummy stem blight
Figure 1. Gummy stem blight lesion on cucumber leaf. Note small fruiting bodies. Powdery mildew
Figure 1. Powdery mildew of cucumber. 
Figure 2. Powdery mildew of cucumber. White mold
Figure 1. White mold of cucumber. Plant is wilting due to lesion on stem. 
Figure 2. White mold of cucumber. Note dark, irregular sclerotia on stem. 
Figure 3. White mold of cucumber fruit. Note dark, irregular sclerotia on fruit. 
Figure 4. Early symptoms of white mold of cucumber. 
Figure 5. White mold of cucumber.