How to effectively control pod borers in bean cultivation
How to control pod borers during bean cultivation? Please explain the control methods. The adult pod borer lays eggs on the tender leaves of the plant, and after 5-7 days, the hatched larvae bore into the pods and feed on the beans. Once larvae older than the 3rd instar have bored into the pods, spraying pesticides can hardly kill them. Therefore, to control this pest, fertilizer and water management should be strengthened...
How to control pod borers during bean cultivation? Please explain the control methodsThe adult pod borer lays eggs on the tender leaves of the plant, and after 5-7 days, the hatched larvae bore into the pods and feed on the beans. Once larvae older than the 3rd instar have bored into the pods, spraying pesticides can hardly kill them. Therefore, to control this pest, fertilizer and water management should be strengthened to ensure uniform growth and a relatively concentrated flowering and pod-setting period, so that this pest can be eliminated in a concentrated way during the key period.
To control pod borers in beans, the principle of "focusing on controlling the buds" should be adhered to, spraying during the flowering period to kill the larvae in the flower buds. The best time to spray is from 8-10 a.m. on a sunny day (when the flower buds open). After the flowers fade and the pods have grown to more than 10 cm long, spray once, which can kill newly hatched larvae and young larvae that have bored into young pods. For the pesticide, you can choose Kung Fu 1500x solution, or abamectin 1500x solution, etc.
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