Prevention and control of rotten pumpkin vine

Pumpkin rotten vine is a common phenomenon, and there are many reasons for its rotten vine. Due to the large temperature difference between day and night, it is easy to form a low-temperature and humid environment in the greenhouse, which further causes diseases and causes rotten vines. So farmers should take appropriate prevention and control measures according to the specific conditions of the greenhouse to prevent pumpkin rotten vines. Let's take a look at it with Xiaobian below.

1. Adjust the suitable environment

First of all, the ventilation should be strengthened when the temperature is high during the day, and the temperature of the shed should be stabilized at 30 degrees, which is helpful to reduce the humidity in the shed. When the temperature drops in the afternoon, the shed should be closed in time to avoid the temperature being too low at night. Do not cause the temperature to increase day and night, resulting in higher humidity in the shed. Secondly, the temperature is higher during the day, the evaporation is also relatively large, and the plant needs more water, so it needs proper watering, but not too much watering at one time, otherwise the plant will spit water seriously at night. it will also increase the humidity in the greenhouse, resulting in the occurrence of rotten vines.

2. Pick out the male flowers

Removing male flowers is an important method to prevent rotten vines caused by bacterial diseases and Botrytis cinerea, because pumpkins often use chemicals to dip in melons, so most male flowers will naturally rot, and a large number of male flowers will be easily infected with bacterial diseases and Botrytis cinerea, and will spread rapidly after infection, resulting in rotten vines, so male flowers need to be removed in time.

3. Prevention and control of diseases

In addition to the rotten vines caused by Botrytis cinerea, blight and bacterial diseases are also very easy to cause pumpkin rotten vines. After the pumpkin stems are infected with the disease, the diseased part will sag, appear water-immersed rot, constriction, thinning and softening of the diseased stem, and the diseased part will produce a white mildew layer. For the epidemic disease, we can choose Kelu, Antaisheng, Anke manganese zinc and other agents for prevention and control. After the pumpkin was infected with bacterial disease, the diseased part was oval to long fusiform, grayish brown, and sometimes spilled amber resin glue. Garinon can be used in the whole field at the initial stage of the disease, and then sprayed every 3-4 days, the effect is better.

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