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红杉球蚜Ade Lges Laricis Potaniinilaricis Zhang是我省高山林区主要更新树种红杉和四川红杉的主要害虫之一,它使树势衰弱,主侧枝停止生长,导致煤烟病发生,甚至全株枯萎死亡.由于高山林区多年连续使用有机氯药剂,害虫抗药力加强,用药量增高,效果渐渐降低,而单位面积成本费用提高.为增加林药剂型,改进施药技术,提高防治效果,我们于八0——八一年在夹金山林区进行杀虫灵油乳剂防治红杉球蚜的试验,获得良好效果.现将试验材料整理于后 .
Ade Lges Laricis Potaniinilaricis Zhang is one of the main pests of sequoias and sequoias of the regeneration forests in the mountainous areas of our province. It weakens the shrubs and stops the growth of the main branches, resulting in the occurrence of soot and even whole plant Withering death.As a result of continuous use of organochlorine pesticides in mountainous forests for many years, the resistance of pests is strengthened, the dosage is increased, the effect is gradually reduced, and the cost per unit area is increased.In order to increase the dosage form of forest medicine, improve the pesticide application and improve the control effect, In 80 - 81 years in Jiajinshan forest insecticide oil emulsion Aphis gossypii test, get good results. Now the test materials after finishing.