Bean pods are also known as pods, which are mainly harmful to cowpeas. All cowpeas sown after late April will be harmed by pods. In the five generations of the Hubei region in one year, overlapping generations from the third generation created great difficulties for prevention and control.
First of all, let us understand how bean curd is harming cowpeas.
Bean's eggs are produced on the inside of the buds and flowers of the cowpeas. After the larvae have fallen, they eat the egg shells, and then enter the buds and flowers within 30 to 50 seconds. The larvae eat the pollen first - the larvae - the petals ——Drilling - old mature larvae enter the earth. The whole life of bean pods was done in one flower and one bud. Therefore, bean pods are the most serious damage to flowers and buds.
How to master the fight against bean sprouts?
Firstly, the buds and flowering stages of cowpea were mastered. 20%, 50%, and 80% of the buds blossomed. The best period was to fight the medicine; the second was to select the right pesticide; the third was to adopt the foliar spray, and the best part was the bud. , tender tips, tender buds.
Zhang Yuan prescription: with bt plus 1.8% avermectin, bt plus 25% diflubenzuron, 1.5% azadirachtin, Beauveria and other foliar spray.
special reminder:
First, cowpea is flowering in the morning, do not spray in the morning, so as not to affect pollination, resulting in falling flowers, buds.
Second, because cowpea is harvested almost every day, it is necessary to pay attention to the selection of pesticides and the safety interval of pesticides during the prevention and treatment of bean pods, generally about 7 days in summer.
First of all, let us understand how bean curd is harming cowpeas.
Bean's eggs are produced on the inside of the buds and flowers of the cowpeas. After the larvae have fallen, they eat the egg shells, and then enter the buds and flowers within 30 to 50 seconds. The larvae eat the pollen first - the larvae - the petals ——Drilling - old mature larvae enter the earth. The whole life of bean pods was done in one flower and one bud. Therefore, bean pods are the most serious damage to flowers and buds.
How to master the fight against bean sprouts?
Firstly, the buds and flowering stages of cowpea were mastered. 20%, 50%, and 80% of the buds blossomed. The best period was to fight the medicine; the second was to select the right pesticide; the third was to adopt the foliar spray, and the best part was the bud. , tender tips, tender buds.
Zhang Yuan prescription: with bt plus 1.8% avermectin, bt plus 25% diflubenzuron, 1.5% azadirachtin, Beauveria and other foliar spray.
special reminder:
First, cowpea is flowering in the morning, do not spray in the morning, so as not to affect pollination, resulting in falling flowers, buds.
Second, because cowpea is harvested almost every day, it is necessary to pay attention to the selection of pesticides and the safety interval of pesticides during the prevention and treatment of bean pods, generally about 7 days in summer.
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