What kind of pesticide does lotus root leaf wither use?

The common diseases of lotus root are putrefaction, leaf blight, leaf spot and so on. Today, let us talk about the most headache lotus leaf wither with what pesticide sprinkle. Let's take a look.

1. Symptoms of lotus leaf blight:

Generally speaking, lotus leaf blight is leaf blight. The disease is caused by a fungus of the genus Monospora of the Glomus fungus. Damage to leaves. At the beginning of the disease, pale yellow spots appeared on the leaf margin and gradually expanded to the middle of the leaf. The disease spots turn yellow to yellow brown, and finally extend from mesophyll to vein, the disease spots are dark brown, the whole leaves die, similar to fire, commonly known as fire, resulting in reduced production.

II. Control methods of lotus root blight:

(1) Remove diseased tissues in time, cut off diseased leaves and eliminate the source of disease.

(2) Proper control of density, increased application of organic fertilizer, phosphorus and potassium fertilizer, so that plants grow vigorously and enhance disease resistance.

(3) At the early stage of disease, 70% thiophanate-methyl 800~1000 times solution or 25% carbendazim WP 500 times solution was sprayed. Drugs should be used alternately to improve their efficacy.

3. What pesticide should be used to sprinkle lotus root leaves withering:

Before planting, 70% thiophanate-methyl 1000 times solution or 75% chlorothalonil 800 times solution was sprayed to seal seeds, covered with agricultural film and sealed for 24 hours, dried and planted. At the beginning of the disease, 0.5 kg of 75% chlorothalonil, 0.5 kg of 65% zinc deb and 30 kg of soil were mixed and then sprinkled into shallow water fields. 70% thiophanate-methyl 1000 times solution, 65% zinc deb 600 times solution or 1∶1∶160-200 bordeaux mixture was sprayed for control. Generally, it was sprayed once every 10-5 days and continuously sprayed for 2-3 times.