Why can't the "blight" of sharp pepper be cured?

In Dongyi Village, Daotian Town, Shouguang City, there are more varieties, with tomatoes, sharp peppers, and cucumbers showing their respective abilities. Wang old man in the village tasted sweetness because he planted sharp peppers last year, but this year he planted sharp peppers again.

But recently, old man Wang is not "sweet". Why? The sharp pepper planted showed symptoms of wilting, which frightened him. "this sharp pepper is most afraid of epidemic disease, or this shed can lose most of the plants," says Wang. What puzzles the old man most is that he has done a lot of disease prevention work in the early stage. Selection of disease-resistant varieties, planting also applied ethyl phosphorus aluminum, how can there be an epidemic disease? No matter how it happens, we still have to deal with it quickly. I hurriedly bought the potion from the capital store, sprayed and irrigated the root, and used all that could be used. However, sharp pepper still dies about 7 or 8 trees a day, so old man Wang is really helpless.

There happens to be an expert hotline from Shouguang vegetable Association. Call for help quickly. After receiving the phone call, the staff of the Shouguang vegetable Association rushed to the greenhouse and found out what happened. It turned out that as soon as the old man saw that the sharp pepper had died, he was anxious. Based solely on the experience of previous years, he took it for granted that the sharp pepper had an epidemic disease, which resulted in a situation with little effect after drug administration.

It was observed that nothing happened in the morning, once the plant wilted at noon, especially when the light was strong, the wilting of the plant was more serious, and the plant returned to normal in the evening. The plant was between 10 and 20 days from disease to death, and the disease was serious in places with high humidity.

In order to understand the disease more accurately, the staff of Shouguang vegetable Association found a shovel, dug up the whole plant with soil, and then washed the soil with water to retain all the roots of sharp pepper. it was observed that the root neck and root epidermis of the diseased plant had turned light brown to dark brown rot, and the epidermis could be peeled off and the xylem turned dark, which is a typical sharp pepper root rot.

Now that an accurate judgment has been made, we should pay close attention to prevention and control, and the staff of the Shouguang vegetable Association have given a set of detailed prevention and control plans:

Using Xiangnong No. 4 to irrigate the root 600 times, pay attention to irrigating the diseased plant first, first peel off the soil around the root of sharp pepper, slightly expose part of the root system, and then pour the liquid into the pit, generally the dosage of each plant is about 250 grams, and then cover the soil after the solution infiltrates. The purpose of this is to make the solution infiltrate better, let the root system absorb fully, and play the role of protection and treatment.

You can also use carbendazim and Prik to irrigate the root, the method is the same as above. After 5 days, root irrigation was carried out again for 2 or 3 times in a row to prevent the infection of root rot pathogen.