Rape cultivation: how to prevent and cure rape virus disease?
What harm does rape virus disease have? How to prevent and cure rape virus disease? Please introduce that virus disease is one of the main diseases of rapeseed, the affected plant affects the yield by about 20%, and the serious one is as high as 70%. It is generally more susceptible to the disease in years with little rain or in surrounding areas where vegetables are often grown. Rapeseed virus disease control methods: 1. Select disease-resistant varieties. 2. Timely prevention and control of aphids. Aphids are the main factors causing virus diseases. 3. Prevention of susceptibility to disease at seedling stage is the key to prevention and control. In rape 3Mel 9-leaf stage, combined with the control of aphids, 800 times of 24% copper mixed fatty acid or 500 times of 7.5% mycotoxin morpholine (keduoling) are used as 500 times, and one of the above pesticides can be used for 2 times, which can effectively control rape virus disease. Click to get more rape planting techniques click to get more vegetable planting techniques
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Rape cultivation: what are the common insect pests in rape?
What are the common insect pests in rape? How to control these pests? Please guide that the common pests in rape are mainly rape aphids and green insects, and the control methods can be listed as follows: rape aphids control methods: light occurrence fields, physical control methods can be used, that is, 10 yellow traps per mu are evenly placed to trap and kill aphids.
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Rape cultivation: how to control Sclerotinia sclerotiorum?
What are the hazards of Sclerotinia sclerotiorum? How to prevent and cure Sclerotinia sclerotiorum? Please guide the harm of Sclerotinia sclerotiorum: rape seedling Sclerotinia sclerotiorum spot mostly occurs at the junction of the ground rhizome, forming reddish-brown spots, then expand to withered white, tissue wet rot, white flocculent hyphae grow above. After the sick class revolves around the stem,.
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