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我厂现有茶园2600余亩,其中更新茶园1600余亩。自1985年以来黑刺粉虱在我厂茶园逐步蔓延,至1987年成为我厂茶园的主要害虫之一。被害茶园一片乌黑,树势衰退,产量锐减,品质下降。为了探索有效的药剂,为此,我们在场农科所的指导下,于1990年5月8日用扑虱灵对第一代黑刺粉虱进行了防治试验,取得了较为理想的效果。现将试验结果初报如下:试验使用的农药有25%扑虱灵可湿性粉剂、40%水胺硫磷和20%融杀蚧螨粉剂。共设置8个处理:扑虱灵1000倍、1500倍、2000倍和2500倍,扑虱灵2000倍加水胺硫磷
I plant more than 2,600 acres of tea plantation, of which more than 1,600 acres of tea plantation renewal. Blackfly whitefly has gradually spread in the tea plantation of our factory since 1985 and became one of the major pests in our tea plantation in 1987. A black tea plantation, tree decline, sharp decline in production, quality decline. In order to explore effective medicaments, we conducted the prevention and control test of the first generation of blackthorn whitefly on the May 8, 1990 with the help of fleas, under the guidance of the Agricultural Science Institute of the field, and achieved satisfactory results. The test results are as follows: The pesticides tested were 25% bupropion wettable powder, 40% acetochlor and 20% melphalan and mite powder. A total of eight treatments were set up: 1000 times, 100 times, 2000 times and 2500 times of buprotrine, and 2000 times of buprofezin