Guangxi Cenwang Laoshan National Nature Reserve Research On Occurrence And Prevention And Control Of Forestry Harmful Organisms

In recent years,the production activities of the people in the forest area of the Laoshan National Nature Reserve in Canyangwang have become more frequent.Due to the lack of awareness of the prevention and control of harmful organisms in forestry,coupled with improper forest management measures and poor management,the types of harmful organisms in forestry have increased.According to the existing records and statistical data,the distribution of forest harmful organisms in the area is not fully and systematically reflected,so that the occurrence of hazards in the area can not be effectively controlled.We will improve the database of information on harmful organisms in forestry in a scientific and systematic way,and effectively carry out monitoring,prevention and treatment.In this study,the distribution areas,hazard patterns,causes and prevention of major forest pests in the Laicenwanglaoshan reserve in the past seven years were studied by means of research methods such as query data,field investigation,analysis of investigation materials and organization of seminars.The research results can provide scientific basis for the prevention and control of the main forest pests in protected areas and forest farms.The main findings are as follows:1.A total of 21 species of forestry harmful organisms occurred in the Cenwanglaoshan reserve:11 species of forest pests,7 species of forest diseases,and 3 species of harmful plants.The study area did not find Guangxi supplementary forestry quarantine pests and national forestry quarantine pests;Two foreign forestry pests were found:Eupatium odoratum L.)and Eupatium adenophora Spreng.).2.According to the results of the survey data,the occurrence and distribution of major forestry harmful organisms in the area were analyzed.From 2011 to 2017,the cumulative area of forestry harmful organisms was 2895 hm2,with an average annual area of 414 hm2,a minimum of 272 hm2,and a maximum of 562 hm2.The area of occurrence was increasing year by year.At present,the prevention and control measures adopted are physical control and chemical control,and the control effect is not good.Octagonal anthrax and octagonal leaf armor(Oides leucomeruena Weise)are the most widely distributed,have severe incidence,and have unsatisfactory control effects.They are historical pests.The area of occurrence is an overall increase,multiple outbreaks,and local disasters,situation.3.Analysis of the causes of forestry harmful organisms and problems in prevention and control:First,the prevention and control awareness is not strong;Second,the lack of efficient disaster prevention technology;Third,insufficient funds for prevention and control;Fourth,poor prevention and control infrastructure;Fifth,the construction of the Mori defense team is not complete.4.In order to promote the healthy development of forest resources,it is necessary to take corresponding measures to prevent forestry harmful organisms,and put forward comprehensive prevention and control countermeasures based on the results:First,carry out education and publicity on prevention and control for all;The second is to do a good job in forest management and upbringing;The third is to adopt comprehensive prevention and control centered on biological control;Fourth,strengthen the support of science and technology;Fifth,strengthen the forest harmful biological investigation and monitoring work;Sixth,we will strengthen investment in all aspects of forest pests and diseases.