论文部分内容阅读
以生态系统的自控能力和樟子松枯梢病流行规律为依据 ,提出了防治樟子松枯梢病的主要途径 :营造混交林 ,及时进行抚育伐和透光伐 ,是防治该病发生的根本措施 ;应用 0 14 7抗生细菌 ,含菌量 10 8个 /mL抑菌效果达82 .1% ,林间防治效果达 5 4 .1% ,该抗生细菌可以定居在樟子松针叶上 ,成为针叶叶围微生物群落 ,起到抑制病菌的作用 ;在 6月病菌孢子飞散前 ,对苗圃和重病林分喷 75 %百菌清 10 0 0×液、6 5 %敌克松 10 0 0×液、70 %甲基托布津 10 0 0×液、6 5 %代森锌 5 0 0×液 ,其防治效果分别达到 90 %以上和 70 %以上。
Based on the self-control ability of the ecosystem and the epidemic law of Pinus sylvestris var. Mongolica, the main ways of preventing and curing Pinus sylvestris var.mongolica were as follows: to create mixed forest, to conduct tending and translucent cutting in time, to prevent and cure the disease The antibacterial effect of 0 14 7 antibacterial bacteria with a bacteriostasis of 10 8 cells / mL reached 82.1%, and the control effect in the forest reached 54.1%. The antibacterial bacteria could colonize conifers of Pinus sylvestris var. Mongolica, Become coniferous microbial community, play a role in inhibiting bacteria; spores in June before the sporadic spraying, nursery and severe disease forest spray 75% chlorothalonil 100% liquid, 65% × liquid, 70% thiophanate-methyl, 100% liquid and 65% dexamethasone 500 × liquid. The control effects were over 90% and over 70% respectively.