Causes and Control methods of rotten eggplant Fruit

With the expansion of the planting area of eggplant, the phenomenon of rotten fruit of eggplant is more common, and it has become a more serious disease, especially in the late growth stage of eggplant, the occurrence of fruit disease is more prominent, which seriously affects the quality and yield of eggplant. Let's follow the editor to take a look at the causes of rotten eggplant fruit and preventive measures.

1. Eggplant fruit rot

Mainly harms the fruit, the bacteria invade from the wound on the fruit surface, causing the injured part of the diseased fruit to turn brown, and the disease spot will gradually become hard, sunken, turn into a black version, and gradually grow into a short fluffy black mildew layer. The pathogen overwintered on the soil with the disease remains, spread by wind and rain under suitable conditions, and was easy to occur in the environment of high temperature and humidity.

Control methods: select varieties with high disease resistance, the disease is spraying chlorothalonil, disinfectant alum, the effect is better, but stop spraying chlorothalonil one week before harvest, and stop the rest 3 days before harvest, so as not to cause drug residues.

2. Bacterial soft rot

After the disease, the appearance of the diseased fruit remains intact, but the internal fruit has become brown and rotten, accompanied by a bad smell, gradually lose water and dry up, and finally fall off or form a stiff fruit hanging on the branch. The pathogen overwintered in the soil with the disease remains, spread by Rain Water, irrigation water and insects, and invaded from the wound. The suitable temperature was between 25 and 30 degrees, and the disease was more serious in the high humidity environment.

Control methods: strengthen field management, adopt high border cultivation, control soil moisture, control pests in time, timely remove and bring out conditions when diseased fruits are found, and spray agricultural streptomycin sulfate or DT fungicide to control the disease.

3. Cotton blight

Cotton blight is the most serious disease on eggplant fruit, mainly near the ground, the injured fruit appears water-immersed round spots, slightly sunken, the flesh becomes black-brown and rotten, easy to fall off, and white cotton-like hyphae grow on the surface of the disease when the humidity is high. and finally rot on the ground.

Prevention and control method: cotton blight can be controlled with 750 times of 50% enoylmorpholine or 800 times of Pulick.

4. Anthrax

Anthracnose mainly harms the fruit, appearing near round or oval to amorphous spots at the onset of the disease, showing dark brown, with black spots and overflowing red slime, and its symptoms are obviously brown to black, and the diseased fruit is rotten in severe cases.

Prevention and control methods: anthracnose can be foliar sprayed with 25% bromofenitrile 500 times or 25% imipramine 1000 times.

The above is the introduction of eggplant rotten fruit causes and control methods, hope to help you, want to know more related knowledge, please pay attention to us.