A specific drug for muskmelon leaf blight

Melon is a common fruit, for China's earliest use as a fruit melon class, thick papery leaves, rough above, white hispid. Melon leaf blight is one of the main diseases. So, what is the specific medicine for melon blight?

1. What is the specific medicine for melon leaf blight?

At fruiting stage, spray 75% chlorothalonil WP 800 times solution or 1:1:200 Bordeaux mixture before watering or at the beginning of sunny day after rain to prevent disease; After the diseased plants are found, spray 3000 times solution of 25% Kairun emulsifiable concentrate, 600 times solution of 80% Yunsheng wettable powder, 1000 times solution of 60% Baitai dispersible granules, 600 times solution of 72.5% Yunda Baste wettable powder and 1500 times solution of 50% prohydantoin for prevention and control, spray once every 6-8 days and spray continuously for 3-5 times.

II. Symptoms of melon leaf blight

The disease occurs mainly during planting and affects mainly leaves and occasionally petioles. At the beginning of the disease, small yellow spots appeared on the leaves, which expanded into round to oval brown spots, with greyish-white center, dark brown to purple-brown edges, slightly raised, and oily outer edges. There is a thin mold layer in the middle of the late stage. The size of the disease spots is about 0.1~0.2mm, and the number of spots on the diseased leaves is many. There are often more than 300 disease spots on a leaf. Severe leaf curl, dead, sick plants were reddish brown. The disease began to appear at the late stage of melon sitting, reached its peak when sugar accumulated, and usually occurred in the middle and upper leaves. Stem vine disease, produce rhombic or oval slightly concave spots. Fruit damage, fruit surface appears round brown concave spots, often cracks, pathogens can gradually invade the flesh, causing fruit decay.

For melon leaf dead leaf disease, farmers must not ignore the early prevention, before sowing can also be used 75% chlorothalonil WP or 50% dihydantoin WP 1000 times solution soaking for 2 hours.