Pepper powdery mildew mainly harms leaves. The infected leaves showed yellow-green irregular patches on the front, with unclear edges, no obvious white powdery mildew on the front, dense white powder on the back, and the leaves fell off earlier.
It is caused by the harmful characteristics of bacteria. In the vegetative growth stage, hyphae are hidden inside the leaves and do not grow on the leaves until they produce propagules. Therefore, it is difficult to find it in the early stage, and it is even more difficult to prevent it with chemicals.
It can maintain proper air humidity, and prevent soil drought and excessive air drying. Rational fertilization to enhance disease resistance. Reasonable close planting to promote ventilation and light transmission. Thoroughly remove sick and disabled people and weeds in the field.
Extended data
Matters needing attention in pepper planting
1, Chili likes light, so we'd better put it on the balcony with astigmatism, but if it's in the summer with strong sunshine, we should avoid direct sunlight, so as to avoid pepper's unbearable toxic sun and its growth being hindered.
Pepper likes rich and loose soil. Because peppers need more nutrients, potted plants are different from ground planting, so special attention should be paid to soil preparation.
3. During the growth of pepper, it is necessary to control the watering amount. Too much water can easily lead to the soaking of pepper roots, hinder breathing, and delay the absorption and transportation of nutrients, which is extremely unfavorable to plant growth. However, if the water content is too little, the color change of pepper will be affected to some extent, and the photosynthesis of leaves will also be reduced, making its growth and nutrition insufficient, prone to premature aging and various diseases and insect pests.
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