Abstract:
5 kinds of chemicals and 7 kinds of treatments were selected for cleaning dead Pinus and not applying drugs. The results showed that the mortality rate of Pinus tabuliformi was controlled from 1.00% to 2.33%, and the control effect was 70.83% to87.50%, among which the Emamectin Benzoate Bursaphelenchus xylophilus trunk pesticide injection had the best control effect after 1 year. The mortality rate was controlled in the range of 1.66%~4.00%, and the control effect was 79.66%~91.52%, among which the control effect of acetamiprid was the best.