pepper diseases
Pepper production in Indiana maybe for wholesale or retail. Bell peppers are often grown in smaller operations for retail. Specialty peppers, such as hot peppers, are often grown for wholesale. Overall, pepper production in Indiana lags behind tomato
Anthracnose
Anthracnose of pepper-Lesions tend to be rounded and sunken. The lesion and the area around the lesion may be soft. Under moist conditions, sporulation of the causal fungus can be observed and the lesion may have an orange or salmon color. Note that all of the photos here are of colored peppers. This may be because overripe peppers are more likely to become diseased and show symptoms.
Figure 1. Anthracnose of pepper. 
Figure 2. Anthracnose of pepper. 
Figure 3. Anthracnose of pepper 
Figure 4. Anthracnose on pepper fruit. 
Figure 5. Anthracnose on pepper fruit. This is the same fruit as in figure 4. However, this was taken 7 days later. 
Figure 6. Anthracnose of pepper. Penny is for size comparison. 
Figure 7. Anthracnose of pepper fruit. Penny is for size comparison. 
Figure 8. Anthracnose of pepper fruit. Bacterial spot of pepper
Bacterial spot of pepper-Lesions are variable. They maybe irregular and water-soaked. Typical lesions will be necrotic with a chlorotic halo. Lesions on fruit are less common and are often raised.
Figure 1. Bacterial spot of pepper. 
Figure 2. Bacterial spot of pepper. 
Figure 3. Bacterial spot of peppers. 
Figure 4. Bacterial spot of pepper. 
Figure 5. Bacterial spot on pepper transplants. These symptoms are quite severe, perhaps because they have occurred under greenhouse conditions. 
Figure 6. Bacterial spot on pepper transplants. 
Figure 7. Bacterial spot of peppers. 
Figure 8. Bacterial spot of peppers. 
Figure 9. Bacterial spot on pepper fruit. 
Figure 10. Bacterial spot on pepper fruit. Phytophthora blight of pepper
Phytophthora blight of pepper-Perhaps our most serious pepper disease. Often the first indication of a problem is the wilt and death of a plant. Dead plants often can be found in low areas. Infected lower stems may be dark or even purple. Fruit may show a white sporulation of the causal fungus.
Figure 1. Pepper plants in the low area of this field have been killed outright by Phytophthora blight. 
Figure 2. Pepper plants are wilted or dead as a result of Phytophthora blight of pepper. 
Figure 3. Stem lesion from Phytophthora blight of pepper. 
Figure 4. Pepper plants with Phytophthora blight. Cucumber culls with Phytophthora blight were discarded in the field, resulting in the infection of the peppers. The remains of the cucumber culls can be observed in the foreground of the photo. 
Figure 5. Close up of pepper plant in Figure 4. 
Figure 6. Pepper plant wilted due to Phytophthora blight of pepper. 
Figure 7. Phytophthora blight on pepper fruit showing sporulation on surface of fruit. 
Figure 8. Lesion on stem of pepper plant due to Phytophthora blight. Southern blight of pepper
Southern blight of pepper—the southern blight causal fungus affects many crops. Tomatoes may also be affected. Peppers may wilt and decline. Small white to brown sclerotia, which are fungal resting structures, may be observed at the base of affected plants.
Figure 1. Pepper plant wilted due to southern blight. 
Figure 2. Southern blight of pepper. Note white fungus on stem. Tomato spotted wilt virus
Tomato spotted wilt virus of pepper-I have little experience with this disease, perhaps because peppers are seldom grown in greenhouses alongside ornamentals. At least in Indiana.
Figure 1. Lesion with ring-like structure due to tomato spotted wilt virus on pepper. 
Figure 2. Pepper leaves with tomato spotted wilt virus. Note positive test strip for TSWV.