Main diseases and control of broccoli in seedling and growing period

Main diseases of broccoli:

The diseases of broccoli can be divided into seedling stage and growing stage.

Diseases and control of broccoli at seedling stage

The main diseases of broccoli at seedling stage are quenching disease and blight disease.

The method of prevention and control is to irrigate the seedling bed with 50% carbendazim, 20 grams of carbendazim and 15 kilograms of water. At the initial stage of the onset of sudden collapse disease, 72% Prik or 64% antidote alum or 60% methamphetamine was sprayed with 500x ~ 600x liquid, and at the initial stage of the onset of the disease, 10% Shi Gao 1500 times liquid was sprayed.

Diseases and control during the growing period of broccoli:

The diseases of broccoli include downy mildew, virus, Sclerotinia sclerotiorum, black rot, soft rot and so on.

Agricultural control methods are as follows: 1. Select disease-resistant varieties. 2. Apply fully mature organic fertilizer to balance the application of nitrogen, phosphorus and potassium. 3. Clean the fields in time after harvest, remove the plant remains and fallen leaves, and take them out of the field for deep burial or burning.

Chemical prevention and control methods are as follows: 1. Downy mildew: at the beginning of the disease, 15 kg of water is sprayed with 15 kg of ethyl manganese 50 muri 75 g water or 15 kg of Ruidu 15 Rue 20 g water or 60% methamphetamine or 64% antidote alum or 58% Redomir or 72% Kloe 500 ~ 600 times spray. 2. Virus disease: the prevention and control effect is better with 15ml 20g water 15kg solution, such as virus net, virus death and so on. 3. Sclerotinia sclerotiorum disease: spray with 1000 times of 50% paracetamol or 1500 times of 50% acetaminophen in early onset and rainy days. 4. Black rot and soft rot can be killed 500 times or 47% plus Ruinong 800 times with 80% necessary 500 times or 77% after transplanting.