Broad bean pest control
2020-10-17 11:17:15
In addition to the selection of disease-resistant varieties, reasonable close-growing and pruning, improvement of drought-proof drainage, increase of phosphorus and potash fertilizers, and enhancement of broad bean resistance, the control of pests and diseases of faba bean is also necessary.
1, red spot disease: Mr. leaves a small red dot, gradually expanding into a round or oval lesions, severe parts become black, decay. Black sclerotia on the inner wall of the stalk. Chemical control: In the early stage of the disease, spray Bordeaux mixture 1:2:100. Later, every 10 days, spray 50% carbendazim 500 times 1 times, and spray 2-3 times. Practice has proved that the early spraying of the multi-bottle liquid is better than the spraying of carbendazim. After spraying carbendazim, the control effect is higher than Bordeaux mixture.
2. Rust: Rust spots appear on the leaves until the leaves are dry. When severe, the plants all died. Chemical control: Use 15% triadimefon 50 grams and spray 50-60 kilograms of water. Use 40-60 kg per mu. About 20 days after application, spray once more. Pay attention to applying pesticides at an early stage, otherwise, the effectiveness of control is poor.
3. Fusarium wilt disease: mainly black root lesions, short main roots, less lateral roots, yellowish leaf color, plants showing wilting, and the top stems and leaves wilt. Chemical control: In the early stage of disease, 50% thiophanate-methyl 500 times solution can be applied to the root. Medication 2-3 times, have better control effect.
4. Vicia fabaensis: Danger of being infected with larvae into beans. As a result, the bitter taste of the seeds is reduced and the weight is reduced, resulting in reduced production and deterioration of quality. Chemical control: In the early flowering period to the flowering period of broad bean, the killing dose of 20 ml of water and 60 kg of water can be killed per mu. Sprayed again 7 days later, the effect is good. In the final flowering period of the faba bean, spraying 40% dimethoate 1000 times and poisoning the larvae also had good results.
1, red spot disease: Mr. leaves a small red dot, gradually expanding into a round or oval lesions, severe parts become black, decay. Black sclerotia on the inner wall of the stalk. Chemical control: In the early stage of the disease, spray Bordeaux mixture 1:2:100. Later, every 10 days, spray 50% carbendazim 500 times 1 times, and spray 2-3 times. Practice has proved that the early spraying of the multi-bottle liquid is better than the spraying of carbendazim. After spraying carbendazim, the control effect is higher than Bordeaux mixture.
2. Rust: Rust spots appear on the leaves until the leaves are dry. When severe, the plants all died. Chemical control: Use 15% triadimefon 50 grams and spray 50-60 kilograms of water. Use 40-60 kg per mu. About 20 days after application, spray once more. Pay attention to applying pesticides at an early stage, otherwise, the effectiveness of control is poor.
3. Fusarium wilt disease: mainly black root lesions, short main roots, less lateral roots, yellowish leaf color, plants showing wilting, and the top stems and leaves wilt. Chemical control: In the early stage of disease, 50% thiophanate-methyl 500 times solution can be applied to the root. Medication 2-3 times, have better control effect.
4. Vicia fabaensis: Danger of being infected with larvae into beans. As a result, the bitter taste of the seeds is reduced and the weight is reduced, resulting in reduced production and deterioration of quality. Chemical control: In the early flowering period to the flowering period of broad bean, the killing dose of 20 ml of water and 60 kg of water can be killed per mu. Sprayed again 7 days later, the effect is good. In the final flowering period of the faba bean, spraying 40% dimethoate 1000 times and poisoning the larvae also had good results.
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