What are the common diseases of pepper? Today, Hui Nongwang Xiaobian mainly talks with the vegetable farmers about the symptoms and prevention of the most common diseases of peppers. The vegetable farmers in need can consult and learn more, and teach you to understand the "chili disease" in one minute!
Common disease of pepper
Leaf blight, black spot, brown spot, black mold, white star disease, cotton rot, brown rot, spot blight, early blight, verticillium, bacterial leaf spot, sclerotinia.
First, leaf blight
Typical symptoms
Mainly harmful to the leaves;
The leaves appear to have scattered brown spots, which then expand into round or irregular lesions;
The center of the lesion is grayish white, often causing perforation, and the edges are dark brown;
The diseased leaves generally expand upward from the lower part, and the more the lesions, the more severe the leaves will be.
Second, black spot disease
Typical symptoms
Mainly harmful to fruits, such as sunburn fruit, umbilical fruit, overripe fruit;
On the surface of the initial fruit, there are light brown lesions, which are slightly sunken, and the diseased part will be densely covered with black mold.
Third, brown spot disease
Typical symptoms
Mainly harmful to the leaves;
The initial lesion is a near-round brown spot;
After development, the surface is slightly raised, surrounded by a yellow halo, with a light gray center in the center, surrounded by dark brown;
In severe cases, the diseased leaves turn yellow.
Fourth, black mold
Typical symptoms
Mainly harmful to the fruit, generally from the top of the fruit, fruit surface;
The color of the initial diseased part becomes lighter and dull, and the fruit surface will gradually shrink;
The late disease minister came out of the dense black green mold layer.
Five, white star disease
Typical symptoms
Mainly harmful to the leaves;
The initial stage of the lesion is nearly round, with dark brown spots on the edges, slightly raised, and the center is grayish white;
Black spots scattered on the lesions in the later stage;
Sometimes the lesions will perforate and the leaves will fall off when severe.
Six, cotton rot
Typical symptoms
Mainly harmful to the fruit;
The initial diseased part is a water-soaked spot;
After expansion into a brown water-immersed large spot;
In severe cases, the lesion can spread to half or the whole fruit, which is wet and rot;
When the humidity is high, the disease minister has a white flocculent layer.
Seven, brown rot
Typical symptoms
Mainly damaging the growth point of fruits, flowers, and plants;
The infected tissue turns from brown to black and will fall off or fall onto the branches;
When the humidity is high, the diseased part will grow white or grayish white hair;
The fruit has a brownish soft rot and the fruit stem is grayish white or brown.
Eight, spot blight
Typical symptoms
Mainly harmful to the leaves;
The leaf lesions are white to pale yellow near-round spots with obvious edges and small black spots in the center.
Nine, early blight
Typical symptoms
Mainly harmful to leaves and fruits;
Leaf lesions are dark brown and round with concentric rings;
Stem lesions brown depression, oval, with a wheel pattern;
Seedlings 3-5 leaf stage is easy to occur, causing the tip and top bud to rot, or spread downward, rotten to the seedbed surface;
The fruit lesions are nearly round black spots, slightly depressed;
When the humidity is high, the patient has a black mold layer.
X. Verticillium wilt
Typical symptoms
Most occur in the middle and late growth stages;
At the initial onset, the near-surface blade first sag, and the posterior leaf tip and leaf edge gradually turn yellow, dry or brown;
Subsequently, the growth of the plant is stagnant, and the vascular bundle tissue at the base of the stem becomes brown, which eventually leads to wilting of the whole plant and the leaves die to fall off.
11. Bacterial leaf spot
Typical symptoms
Mainly harmful to the leaves;
The leaf spot is initially yellow-green small spots, and then expanded into reddish brown, dark brown, or rust-colored lesions, and the shape is irregular;
The lesion spreads quickly, causing the leaves to fall off in severe cases.
The disease department does not rise, it is different from the scab.
The above-mentioned Hui Nongwang Xiaobian talked with you about the 11 common diseases of pepper. If you find that your own vegetable plot has these symptoms, you must learn to identify which diseases are the diseases and how to prescribe the right medicine!
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