What causes white spots on pepper plant leaves?

Pepper leaves turning white is an indication of powdery mildew, a common fungal disease that can afflict nearly every kind of plant under the sun. Powdery mildew on pepper plants can be severe during the warm days of summer, and can significantly affect quality and yield at harvest time.

How do you treat pepper leaf spots?

Seed treatment with hot water, soaking seeds for 30 minutes in water pre-heated to 125 F/51 C, is effective in reducing bacterial populations on the surface and inside the seeds. However, seed germination may be affected by heat treatment if not done accurately, while the risk is relatively low with bleach treatment.

Why do my pepper plants have spots?

Irregular brown spots on the leaves of your pepper plants are indicative of leaf spot, a bacterial disease that affects both pepper and tomato plants in the garden, says Harvest to Table. The disease is caused by pathogens of the Xanthomonas genus, in which there are multiple species.

Why are my pepper plant leaves light green?

Nutrient Deficiencies Too little nitrogen will cause a pepper plant’s oldest leaves to turn yellow while the leaves on the rest of the plant may turn light green. Too little iron, manganese, molybdenum or zinc can also cause a lightening or yellowing of pepper leaves.

What are the white spots on leaves?

Powdery mildew usually starts off as circular, powdery white spots, which can appear on leaves, stems, and sometimes fruit. Powdery mildew usually covers the upper part of the leaves, but may grow on the undersides as well. Young foliage is most susceptible to damage.

Why do my pepper plants have yellow spots on the leaves?

Pepper Plant Leaves are Yellow Due to a Lack of Water and Nutrients. One of the two most common reasons for yellow leaves on a pepper plant is either under watering or a lack of nutrients in the soil. In both of these cases, pepper plants will also be stunted and will commonly drop the pepper flowers or fruit.

What causes yellow spots on pepper plants?

Bacterial leaf spot is one of the more common infections in pepper plants. It causes yellowish spots on the leaves which may turn brown or enlarge, and will cause leaf drop. Mosaic virus is also a common viral infection that attracts insects.

How often should you water Peppers?

As a general rule, pepper plants should be watered about once per week and allowed to thoroughly drain. However, this frequency can vary significantly based on the temperature, wind, and the size of the plant and its growing container. During a heat wave, you may need to water your potted peppers every day!