Analysis of Green Control Effect of Natural Secondary Forest Diseases and Insect Pests in Baiyun Mountain State-owned Forest Farm in Gejiu City
Objective To analyze the green control measures of natural secondary forest diseases and insect pests in Baiyun Mountain state-owned forest farm in Gejiu City,and to summarize the control effects.Methods The samples were selected from Baiyunshan State-owned forest farm in Gejiu City and divided into A1(agricultural control),A2(agricultural control+biological control)and A3(agricultural control+biological control+physical control)according to the differences in green control measures of diseases and pests.The green control effects of natural secondary forest diseases and pests after different treatments were analyzed.Results The number of high quality and healthy of secondary forest health degree treated by A3 was more than that treated by A1 and A2,and the number of sub-healthy and unhealthy was less than that treated by A1 and A2.The species diversity of understory was A3>A2>A1.The level of community treated by A3 was more complex,the canopy was the highest,the leaf area was larger,and the pest and disease removal was more thorough.ConclusionThere are many types of diseases and pests in the natural secondary forest of Baiyun Mountain State-owned forest farm in Gejiu City,and different control measures can all play a role in the control effect.The comprehensive con-trol effect of agricultural control,biological control and physical control is the best.Therefore,in the control process of diseases and pests,it is necessary to master the characteristics of regional environmental change and climate change,and grasp the dynamic change factors.According to the types of diseases and pests and the occurrence rules of diseases and pests,the green control countermeasures that meet the actual requirements are formulated.In practice,we should improve the awareness of forest disease and pest prevention,improve the construction of forest control system,and apply a small amount of chemical agents to remove pests,and obtain more ideal disease and pest control effect through various green control measures,construction of mixed forest,forest thinning and other measures,so as to promote forest growth.
State-owned forest farmnatural secondary forestpests and diseasesgreen controlcontrol effect
万方数据
维普
