Investigation Of Entry Quarantine Pests In Asean Agricultural Products And Risk Analysis Of Fraxinus Mandshurica

Recently,the trade volume of Chinese ASEAN agricultural products has been increasing significantly.Intercepting different types of pest epidemic species and quantity from the port of our country from all types of cargo and passengers of ASEAN has also been increased gradually.It makes the risk of pest invasion rising rapidly,if the exotic pest diffuses,the agriculture and ecological environment of our country will be destroyed enormously,and the economic losses will be tremendous.This paper investigates and authenticates the interception of pest from inbound trade goods and brigade mail at the ports of Guangdong Province.Simultaneously,utilizing the method of combining with the qualitative factors and quantitative index system to assess the possibility of occurrence of Agrilus planipennis in various regions of China.The results are as follows.1.From 2011 to 2016,there were 21587 species of pests intercepting from agricultural products transported to China from ASEAN countries.In which,109 species(genera)were quarantine pests,totally 14151.Insects,nematodes and weeds accounted for 77,12 and 11 species(genera),5 species of fungi,3 species of prokaryotes and 1 species of molluscs.According to this data,pepper fruit fly,orange small fruit fly and coffee fruit small moth,totally 23 types were intercepted more than 100 times.Pepper fruit fly,guava fruit fly and orange small fruit fly,totally 6 species were intercepted more than 100 times by goods inspection.2.This paper analyzes the intercepting situation of pests which transported from ASEAN countries to China from 2011 to 2016:According to the analysis of pests' interception in different years,the number of species interception,whichwas the largest from 2011 to 2016,was reaching more than 3000 species.And in other years,which were intercepted about 2000 species annually.According to the analysis of the interception of pests from ASEAN countries which was detected by 22 China's inspection and quarantine bureaus,Guangdong and Shenzhen have the most interceptions,followed by Yunnan,Shanghai and Jiangsu ports,all of these have more than 1000 species.The less portsare Sichuan,Hubei,Hunan,Guizhou and Shanxi.According to the analysis of the pests carried by different plant products,fruits and timber are the main commodities of plants transported to China by ASEAN countries.From 2011 to 2016,5453 kinds of quarantine pests were intercepted from ASEAN fruits,which occupies 38.5% of the total intercepted.There were4103 interception,which occupies 29.0% of the total intercepts.3792 other agricultural products were intercepted,which occupies 26.8% of the total intercepts.According to the further analysis of pests intercepted from fruits transported to China,fruit flies and scale insects were the main pests in fruits transported from ASEAN.Among them,fruit flies were found in 18 genera and 3420 species.Fruit flies were intercepted by 1754 times,and guava fruit flies were intercepted by 1000 times.Coccids in fruitwere intercepted by 1464 times and have 5 genera,of which planococcus lilacinus were intercepted by1259 batches.Analyzing the intercepting situation of wooden products and packages,41 genera of quarantine pests and 36 genera of insects were intercepted from ASEAN to China transpotation.From the figures,3 species are weeds,1 species is nematodes and 1 species is molluscs,totally 4095 species.Meanwhile,1093 species are Bark beetles,1024 species arelactotermites and 796 species are Bark beetles.According to the analysis of pests intercepted from other agricultural products,the most quarantine pests were intercepted from agricultural products exported from Thailand to China,which are 1228 species,and pepper fruit flies were intercepted by1134 times,which occupies 92.3% of the total intercepted.Legumes were the main agricultural products exported from Myanmar to China.1178 quarantine pests were intercepted and 876 species of legumes were intercepted,occupies 74.4% of the total.According to the analysis of pests intercepted from different countries,Malaysia has the highest interception of epidemic situation,totally 2066 times.The second is Myanmar which has 550 times,Thailand has 415 times.Brunei does not have any interception,Vietnamand Singapore have 31 times.This paper analyzes and describes the 30 interception pests in details(which are 11 insects,12 weeds,5 pathogens and 2 nematodes).3.Recently,Agrilus planipennis was intercepted in Guangdong area sometimes.According to the index system of forest pest risk analysis and analytical calculationof evaluation criteria,the results showed that the risk grade was special danger.Although the quarantine and control of this insect has been developed maturely,there are still some risks in the quarantine at the port.China has abundant species resources,if the insect leaks into the net,it can quickly adapt the new living environment in most parts of China and spread through its main hosts,such as white wax trees,other wood materials and plants.At the same time,this paper suggeststo strengthen quarantine supervision and emergency handling of Agrilus planipennis.Therefore,it should be taken seriously to avoid the occurrence and spread of pests in Guangdong and other new areas.