Method for killing agrotis ypsilon larva

Abstract

The present invention discloses a method for killing an agrotis ypsilon larva, and belongs to the technical field of pest prevention and control. A seedbed is prepared well, and an agricultural tool is used to turn soil. Under a condition of no rain at nightfall, a mixture of 20% fenpropathrin, cypermethrin, neutral detergent, and water is sprayed on a soil surface of a region in which a plague of agrotis ypsilon larva has occurred. The mixture components consist of: 25-30 ml of 20% fenpropathrin; 10-15 ml of cypermethrin; 30-50 g of neutral detergent; and 30-40 kg of water. The method disclosed by the present invention can effectively kill the agrotis ypsilon larva, so as to have a good protective effect on a seedling. The above steps are very simple, easy-to-understand, and very clear, which are suitable for a professional planter or an ordinary worker to make reference and use. Furthermore, the cost of pesticides is not expensive, and pesticide dosage is little, thereby causing no overburdened economic pressure.

Description

Technical field: [0001] The invention relates to the technical field of pest control, in particular to a method for killing cutworm larvae. Background technique: [0002] The small cutworm is also known as the soil silkworm. It is the main underground pest that harms fruit and vegetable seedlings and transplanting period. When it is mild, there are few plants and seedlings. When it is serious, more than 50% of the seedlings in the whole field are harmed. In the past, the control methods mainly advocated in textbooks and related materials were to mix soil with phorate and phoxim, and to control with poisonous baits. Although it has a certain control effect, the dosage of pesticides is large, the amount of pesticide residues is large, and it causes serious pollution to the soil, and there are problems such as difficult control of the quality of pesticide application, which does not meet the current requirements of pollution-free production. % fenpropathrin needs to be spraye...

AI Technical Summary

Problems solved by technology

Although it has a certain control effect, the dosage of pesticides is large, the amount of pesticide residues is large, and it causes serious pollution to the soil, and there are problems such as difficult control of the quality of pesticide application, which does not meet the current requirements of pollution-free production. %fenpropathrin needs to be sprayed on the roots of plants, and the soil needs to be turned over, so the effect of killing cutworm larvae is very limited