Control of Underground pests of Wheat in Spring

The main underground pests are grub, mole cricket and golden needle worm, among which golden needle worm is the most harmful to wheat. The peak damage period of underground pests after the Spring Festival is from mid-March to early April. They bite off the roots of wheat, resulting in serious lack of seedlings and broken ridges, which have a great impact on wheat yield. In recent years, there is a tendency to control underground pests more and more seriously, and there are two fundamental reasons: first, they do not see their harm when ploughing, do not pay attention to control, and some even do not control; second, there are a variety of underground pest treatment agents in the market, and the quality is uneven. Prevention and control methods: according to the weather forecast, before rain, use phoxim or 3911 mixed with poisonous soil or poison bait to spread, where there is dead wheat, sprinkle more around, after rain, the medicinal soil seeps into the soil layer, it can quickly kill underground pests; spray wheat roots with water with 50 grams per bucket of water, and spray key sprays on wheat roots that are harmful to underground pests, so that the liquid flows downwards, and the insecticidal effect is better.