Mango spring to prevent locusts

The mango worm, both in its adult and nymph stages, primarily feeds on the shoots and the upper surfaces of young leaves. These pests suck sap from flower spikes and young fruit stalks, leading to symptoms such as leaf curling, shoot tip dieback, and premature dropping of flowers and fruits. This feeding behavior significantly hinders the growth of new shoots and can, in severe infestations, result in the death of entire shoots. To manage this pest effectively, several control methods can be applied. First, biological control is highly recommended. Natural predators such as ladybugs, lacewings, spiders, and certain parasitic wasps can help keep locust populations in check. When using chemical pesticides, it's important to choose selective options that minimize harm to beneficial insects. This helps maintain a balanced ecosystem and reduces the need for frequent pesticide applications. In cases of heavy infestation, chemical control measures may be necessary. Spraying with 50% WP (Wettable Powder) at a dilution of 1000–1500 times, or 40% dimethoate EC (Emulsifiable Concentrate) diluted to the same range, can be effective. Alternatively, 2.5% lambda-cyhalothrin (commonly known as Kung Fu) can be applied at a 3000-fold dilution through foliar spraying. Applications should be spaced 7 to 10 days apart, with 2 to 3 treatments typically required. It’s also important to rotate different insecticides to prevent resistance development and ensure long-term effectiveness. By combining these strategies, farmers can effectively manage mango worm infestations while preserving the health of their crops and the surrounding environment.

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