Causes and control methods of dead pepper trees

Dead pepper has always been a heart disease for vegetable farmers, which seriously affects the yield of pepper and makes vegetable farmers suffer huge losses, so if we want to plant pepper well, we must do a good job in the prevention and control of the disease. So what is the reason for the death of chili trees? How to prevent and cure it? Let's take a look.

1. Bacterial wilt

Ralstonia solanacearum is a destructive disease in the process of pepper production. Its leaves wilted at noon and returned to normal in the evening until finally withered and unable to recover. In open field cultivation, it is very easy to cause a large area of death after rain, until the death will maintain the original cyan, the appearance of symptoms is not obvious, cut open the stem, you can see milky mucus outflow, accompanied by odor, is a bacterial disease.

Prevention and control methods: avoid continuous cropping with tomato, eggplant and other eggplant crops, it is best to rotate with cruciferous crops, adopt high ridge plastic film mulching cultivation, remember flood irrigation, timely drainage after rain, pay attention to ploughing and weeding, do not damage the root system. The diseased plants were removed in time, and the acupoints were disinfected, and the branches of neophytomycin or quinoline copper were sprayed comprehensively at the same time.

2. Epidemic disease

It is also a destructive disease, which can be caused by both seedling and adult plants. Waterlogged disease spots appear at the base of the stem during the disease, which gradually constricts, causing the seedlings to lodge and rot, and finally wither and die. When the adult plant occurs, the leaf appears light green disease spot, which expands gradually. when the humidity is high, the white mildew can be seen on the disease spot, and finally the leaf soft rot falls off. Waterlogged spots appear on the stem, which gradually spread into irregular brown spots, which will lead to cortical rot after a circle around the stem, and finally lead to the collapse of the plant.

Prevention and control methods: reasonable close planting, not suitable for flood irrigation, do a good job in field sanitation, clean up the diseased and residual plants in time, take them out of the field and burn them out of the field. When the disease occurs, it can be sprayed with metalaxyl manganese zinc or Prike, and the effect is better.

3. Root rot

Root rot disease generally occurs after planting, when the plant top leaves wilt Yan, evening or morning recovery, so repeated several times, the leaves will all wither, but the color is still green. A brown spot will appear at the base of the stem, gradually decay, exposing xylem, and a white or pink mildew layer will grow in a wet environment, that is, the conidia of the pathogen.

Prevention and control methods: to do a good job of field water management, so as not to easily induce the disease in a humid environment, especially in time to drain and loosen the soil after the rainy season. It was found that the diseased plants were pulled out and taken out of the field in time, and the disease points were disinfected with lime, and chemical control was sprayed in an all-round way.

The above is the introduction of the causes and control methods of dead pepper trees. I hope I can help you. If you want to know more about it, please pay attention to us.