根结线虫可为害茄科、葫芦科、豆科、十字花科等数十种作物,在作物根部形成根结、肿块,造成植株生长受阻、叶片萎蔫或逐渐枯黄导致严重减产甚至绝收。根结线虫多在土壤5—30厘米处生存,常以卵或二龄幼虫随病残体遗留在土壤中越冬。病土、病苗、施没有腐熟的农家肥、灌水是主要传播途径。一般可存活1—3年,在温室或塑料大棚内危害猖撅。农药防治效果不理想,并造成土壤污染。近年来我们采取了麦秸闷杀法处理土壤效果很好。其原理 Root-knot nematodes can kill dozens of crops such as Solanaceae, Cucurbitaceae, Leguminosae and Cruciferae, forming root knots and lumps in crop roots, causing the growth of plants to be hindered. The wilting or gradual yellowing of leaves leads to serious yield reduction and even absolute failure. Root-knot nematodes and 5-30 centimeters in the soil to survive, often with egg or second instar larvae left over in the soil with the disease in winter. Sick soil, disease vaccine, facilities do not have maturity of farmyard manure, irrigation is the main route of transmission. Generally can survive 1-3 years, in the greenhouse or plastic greenhouse hazards rampant. Pesticide control effect is not ideal, and cause soil pollution. In recent years we have taken the method of killing the soil to kill the soil well. Its principle