速生杨食叶害虫的防治方法：
Control methods for fast-growing poplar leaf eating pests:
1、人工物理防治：越冬（越夏）时，人工收集地下落叶或翻耕土壤中的害虫蛹，以削减虫口基数，成虫羽化盛期运用杀虫剂、黑光灯诱杀等办法，下降下一代的虫口密度。依据大多数品种初龄幼虫群集虫苞的特点，安排人力摘除虫苞和卵块，杀死大量幼虫。也可利用幼虫受惊吓后吐丝下垂的习性，经过轰动树干捕杀下落的泥杆 保定古筝 塑料增韧剂 拱形护坡模具 保定空调维修  托辊生产线幼虫。 ‍
1. Artificial physical control: when overwintering (overwintering), pupae of pests in underground fallen leaves or ploughed soil are collected manually to reduce the population base. Insecticides and Blacklight traps are used to reduce the population density of the next generation during the peak period of adult emergence. Based on the characteristics of the first instar larvae clustering in most varieties, manpower is arranged to remove the insect buds and egg masses, killing a large number of larvae. It is also possible to use the habit of larvae spinning and drooping after being startled to catch and kill fallen larvae through sensational tree trunks& Zwj;
2、生物防治：在幼虫3龄前期喷施BT和病毒等防治。地上喷雾，树高在12米以下中幼龄林，BT用药量200亿国际单位/亩，或阿维菌素用药量6000-8000倍。也选用1%阿维油烟剂进行防治。卵期开释赤眼蜂也是较好的防治办法。害虫产卵前期，每平方公里设50个放蜂点，放蜂量25-150万头/公顷。
2. Biological pest control: spray BT and virus at the early third instar of larvae. Spray on the ground, young and middle-aged forest with tree height below 12 meters, BT dosage 20 billion International unit/mu, or Avermectin dosage 6000-8000 times. 1% Avil oil fume agent is also selected for prevention and control. The release of Trichogramma during the egg stage is also a good control method. In the early stage of insect spawning, 50 bee releasing sites are set up per square kilometer, with a bee releasing capacity of 250000 to 1.5 million heads per hectare.
3、仿生等药剂防治：关于小龄幼虫，可选用20%灭幼脲Ⅲ号25/亩，或1.2%烟碱乳油1000-2000倍喷雾防治。也可选用打孔注药防治，利用打孔注药剂在树胸径处不同方向打3-4个孔，运用20%吡虫啉（康福多）可溶性液剂稀释20-50倍或5%吡虫啉乳油稀释10倍进行防治。也可选用0.5%吡虫啉水剂直接打孔防治。用药量均为10厘米胸径4-6毫米。注药后注意封好注药口。
3. Biomimetic and other chemical prevention and control: For young larvae, 20% diflubenzuron III 25/mu, or 1.2% nicotine emulsifiable concentrates 1000-2000 times spray can be used for prevention and control. Alternatively, perforation injection can be used for prevention and control, using perforation injection to drill 3-4 holes in different directions at the breast diameter of the tree. 20% imidacloprid (Kangfuduo) soluble solution can be diluted 20-50 times or 5% imidacloprid EC can be diluted 10 times for prevention and control. 0.5% imidacloprid aqueous solution can also be used for direct perforation prevention and control. The dosage is 10 centimeters with a chest diameter of 4-6 millimeters. Pay attention to sealing the injection port after injection.