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一、花生田蛴螬重发原因分析1.土壤本身因素引起的土壤温湿度是影响蛴螬生长发育的重要因素,蛴螬发育最适宜的土壤含水量为15%~20%,土壤过干或过湿,则其卵无法正常孵化,导致幼虫死亡,成虫的繁殖和生活能力也严重受阻;冬春较温暖,蛴螬大量发生。就土质来说,黏土地蛴螬发生最重,其次是沙壤土,黏土地最轻。一般在土层深厚、湿度较大、有机质丰富的粘土地蛴螬发生较重,因为这种土壤类型有利于蛴螬生存、产卵、繁殖。而沙土地、丘陵高燥地块不利于幼虫变态和成虫繁殖,相对
First, peanut field 蛴 螬 Reasons for the recurrence 1. Soil itself caused by soil temperature and humidity is an important factor affecting the growth and development of 蛴,, 蛴 螬 development of the most appropriate soil moisture content of 15% to 20%, the soil over-dry or wet, The eggs can not hatch properly, leading to the death of the larvae, the reproduction and living ability of adult worms are also seriously hampered; the winter and spring are warmer and the catfish is more and more likely to occur. In terms of soil quality, Clay mulch occurs most heavily, followed by sandy loam, the lightest clay. Generally in the deep soil, humidity, organic matter abundance of clay climax occurs heavier, because this type of soil is conducive to survival, spawning, reproduction. The sandy land, hills and high dry block is not conducive to larval metamorphosis and adult reproduction, the relative