First, the bacterial wilt of peanuts The disease occurs mostly in the peanut seedling period to the pod-bearing period, spring peanuts in May to June, summer peanuts in September to October, the incidence is heavier. The susceptible plants initially sag, and then the leaves of the whole plant sag, but the wilted leaves can still maintain a turquoise color. The stems are cut open, and the transporting tissue near the ground can be seen to have turned brown. At the broken incision, the dirty white bacteria flowed out, and the diseased plant was pulled up, and the roots had rotted to become dark brown. The control measures are as follows:
1. Reasonable rotation, reasonable rotation with non-parasitic crops, such as peanut and corn rotation to eliminate pathogens in the soil; 2. Selection of resistant varieties such as "Baisha 1016 seeds"; 3. Improved soil, attention to drainage, multi-fertilization Organic fertilizer, when planting peanuts, 667 square meters of planting wood ash 50kg ~ 150kg, 12% calcium magnesium phosphorus 20kg ~ 30kg, can promote healthy growth of peanuts, improve disease resistance; 4. Chemical control 1 when peanuts are planted, use green to enjoy one No. or fulvic acid seed dressing can effectively prevent the occurrence of peanut bacterial wilt. The application method is to use 1g ~ 2g or fulvic acid 2g ~ 3g per kg of seeds, mix well and sown, the control effect can reach 80%～90% 2 In the peanut seedling stage or the onset period, it is sprayed with 1000-fold to 1500 times of the king of the sand or the gold. The control effect is over 90%. When the disease is heavy, the 667 square meters is used by the king of sand or the gold of 35g. 15kg ~ 20kg dilution solution is poured into the root, the effect is very good.
Second, peanut leaf spot Peanut leaf spot, there are two kinds of brown spot and black spot. During peanut growth, it generally occurs that mixing occurs on the same plant or even on the same leaf. Brown spot disease occurs earlier, black spot disease occurs later, and the control measures are as follows:
1. Strengthen the field management, and remove the residual leaf disease plants in time after harvesting the crops to eliminate the source of the dyeing.
2. Rational fertilization, increase the application of calcium and magnesium fertilizers and potassium fertilizer to improve the disease resistance of peanuts.
3. Chemical control can control the spread of diseases, maintain a long green leaf for long-term, and prolong the time of photosynthesis: 1 Spray 1200 times to 2000 times of the king of sand bacteria in the growth period 2 to 3 times, 15 days apart~ 20 days, the control effect can reach 93%; 2 in the seedling period 667 square meters with gold 0.5g water 15kg ~ 20kg, continuous spraying 3 times ~ 4 times, each interval 15 days ~ 20 days, the control effect is 95 More than %, at the same time, can prevent the occurrence of other diseases.
In addition, the strong anti-disease and increasing-yielding agents "Salmon King", "Everywhere" and "Huangyeqing" have a certain preventive effect on preventing the occurrence of peanut virus disease. In the prevention and treatment of diseases such as bacterial wilt and leaf spot, mixed spraying It can enhance disease resistance and increase production by more than 30%.
Source: Rural Agricultural Farmers
1. Reasonable rotation, reasonable rotation with non-parasitic crops, such as peanut and corn rotation to eliminate pathogens in the soil; 2. Selection of resistant varieties such as "Baisha 1016 seeds"; 3. Improved soil, attention to drainage, multi-fertilization Organic fertilizer, when planting peanuts, 667 square meters of planting wood ash 50kg ~ 150kg, 12% calcium magnesium phosphorus 20kg ~ 30kg, can promote healthy growth of peanuts, improve disease resistance; 4. Chemical control 1 when peanuts are planted, use green to enjoy one No. or fulvic acid seed dressing can effectively prevent the occurrence of peanut bacterial wilt. The application method is to use 1g ~ 2g or fulvic acid 2g ~ 3g per kg of seeds, mix well and sown, the control effect can reach 80%～90% 2 In the peanut seedling stage or the onset period, it is sprayed with 1000-fold to 1500 times of the king of the sand or the gold. The control effect is over 90%. When the disease is heavy, the 667 square meters is used by the king of sand or the gold of 35g. 15kg ~ 20kg dilution solution is poured into the root, the effect is very good.
Second, peanut leaf spot Peanut leaf spot, there are two kinds of brown spot and black spot. During peanut growth, it generally occurs that mixing occurs on the same plant or even on the same leaf. Brown spot disease occurs earlier, black spot disease occurs later, and the control measures are as follows:
1. Strengthen the field management, and remove the residual leaf disease plants in time after harvesting the crops to eliminate the source of the dyeing.
2. Rational fertilization, increase the application of calcium and magnesium fertilizers and potassium fertilizer to improve the disease resistance of peanuts.
3. Chemical control can control the spread of diseases, maintain a long green leaf for long-term, and prolong the time of photosynthesis: 1 Spray 1200 times to 2000 times of the king of sand bacteria in the growth period 2 to 3 times, 15 days apart~ 20 days, the control effect can reach 93%; 2 in the seedling period 667 square meters with gold 0.5g water 15kg ~ 20kg, continuous spraying 3 times ~ 4 times, each interval 15 days ~ 20 days, the control effect is 95 More than %, at the same time, can prevent the occurrence of other diseases.
In addition, the strong anti-disease and increasing-yielding agents "Salmon King", "Everywhere" and "Huangyeqing" have a certain preventive effect on preventing the occurrence of peanut virus disease. In the prevention and treatment of diseases such as bacterial wilt and leaf spot, mixed spraying It can enhance disease resistance and increase production by more than 30%.
Source: Rural Agricultural Farmers
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