Treatment of watermelon vine blight

There are three treatments for watermelon vine blight. The first is to treat the seeds and soak the seeds in mancozeb wettable powder for 1-2 hours before sowing. The second is agricultural prevention and control, which can be treated effectively by doing a good job of water and fertilizer, clearing the garden and so on. The third is chemical control, which can be effectively controlled by spraying with flusilazole EC + Dysen zinc wettable powder or with methyl thiophanate wettable powder or flusilazole EC.

Specific control measures for watermelon vine blight:

1. Seed treatment

Seed treatment before sowing has a good control effect on vine blight.

Specific operation method: soaking seeds with 700 times of 70% mancozeb wettable powder or 500 times of 50% methyl topiramate for 1-2 hours before sowing can effectively control the disease of seedlings.

2. Agricultural prevention and control

The main results are as follows: (1) rotation of watermelon plots and non-melon crops for 2-3 years; adequate base fertilizer, more rotten organic fertilizer, especially cake fertilizer, combined use of nitrogen, phosphorus and potassium, no partial application of nitrogen fertilizer, balanced formula fertilization to enhance plant growth.

(2) choose the land with good drainage and irrigation to plant, remove the diseased leaves in time after rain, thoroughly clean up the diseased parts of the melon garden and the weeds on the ground after harvest, concentrate and bury or burn them, so as to reduce the source of the disease.

(3) choose ditch planting or high ridge planting in the planting mode, if the salinized land can be planted with furrow and ridge, that is, open a ditch with a width of 80 cm and a depth of 20 cm, and make a small ridge with a width of 50 cm and a height of 10 cm at the bottom of the ditch, when watering, water can not only flow through the stem of the seedling, reduce the salt content around it, but also avoid stagnant water around the stem after watering. Practice has proved that this method can significantly reduce the incidence.

(4) spreading grass under the melon vine can also effectively reduce the chance of bacteria transmission and reduce the humidity, so as to reduce or prevent the occurrence of diseases.

3. Chemical control

It can be sprayed with 3000-5000 times of 40% flusilazole EC + 65% Dysen zinc wettable powder, or 1500 times of 10% difenoconazole water dispersible granules, once in 7-10 days and 2-3 times in a row. For the seriously affected plants, scrape off the rotten tissue with a knife, then use 70% thiophanate wettable powder 50 times or 40% flusilazole EC 100 times, and use a brush dipped in the medicine to smear the stem spot, which can better control the occurrence of watermelon vine blight.

The above is the introduction of the treatment of watermelon vine blight. I hope it will be helpful to you.