Seven Methods for Controlling Tianniu

1. Trunk Whitening: Apply a whitening agent made with 50% phoxim and lime to the trunk at a height of 2 meters above the ground before the bees lay eggs. This method effectively prevents adult emergence and inhibits egg hatching into larvae. Second, Egg Hammering: During the egg-laying period, in orchards and poplar trees, manually hammer the eggs found on the trunk using a suitable tool. This helps reduce the number of emerging pests. Third, Scraping Insect Eggs: From June to July, if beetle eggs or newly hatched larvae are found on the rough part of the trunk, 2 meters above the base, scrape them off using a knife. After scraping, apply a lime sulfur mixture to the affected area to prevent re-infestation. Fourth, Manual Killing: If wormholes are discovered with a lot of frass and wood shavings, insert a wire into the hole to kill the larvae directly. This is an effective way to target the pest at its vulnerable stage. Fifth, Injection and Sealing: Inject a 40% omethoate solution diluted 100 times into the wormhole, then seal it with mud. The chemical fumigates the larvae inside, killing them effectively. Sixth, Manual Capture: Since the adult pests are large, slow, and have poor flying ability, people can be organized to capture them by hand, especially during the day when they are more active. Seventh, Pesticide Spraying: During the adult eclosion period, spray a mixture of 20% emulsifiable concentrate (200-fold dilution) and 40% dimethoate emulsion (300-fold dilution). This helps control the adult population before they lay eggs. These integrated methods provide a comprehensive approach to managing the pest infestation, combining physical removal, chemical treatment, and manual intervention for better results. Regular monitoring and timely action are essential to ensure long-term effectiveness.

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