What are the control methods for the fig longhorn beetle (Mulberry longhorn beetle)?

The fig mulberry longhorn beetle, commonly known as the water buffalo, occurs widely in fig-growing areas and is a major longhorn beetle pest of fig trees. Its larvae bore into the xylem of branches and trunks, weakening the tree and stunting its growth, which in turn affects fruit yield and quality. The following 4 control methods are highly effective. 1. Catching adults In late July, after the adults emerge, they need 10-15 days to lay eggs, during which they are not very active during the day. During the peak period of adult activity, especially after rain, manual capture and killing gives remarkable results. 2. Destroying eggs The eggs of the mulberry longhorn beetle are mainly laid on the sunny side of branches more than 2 cm in diameter, about 10 cm from a fork. When laying eggs, the adult chews a "chuan"-shaped (zigzag) notch, and only 1 egg is laid in each notch. In July and August, look for the "chuan"-shaped egg-laying notches and use a sharp knife to pry out and pierce the eggs. 3. Stabbing the larvae After hatching, the larvae bore into the wood and tunnel downward, biting an opening at intervals to expel wood shavings and frass fluid. Once excrement is found under the canopy or an excretion hole is found on a branch or trunk, insert a thin, pointed wire through the fresh wormhole and repeatedly stab inside the tunnel to kill the larvae. A spring-type probe made of steel wire with a pointed hook at the tip can also be used, slowly twisting it into the tunnel down to the bottom to stab the larvae. 4. Poisoning the larvae For young larvae that have just entered the xylem, use a large syringe to inject the pesticide solution into the larval tunnel; if the larva has already gone deep into the branch or trunk and has bored excretion holes, locate the lowest excretion hole, inject the pesticide solution into the tunnel from this hole, then whittle a small wooden peg to plug the opening tightly, and the larva will be killed. In practice, pesticide mud or pesticide cotton balls are also inserted into the wormholes to poison the larvae.