Pest Risk Analysis Of Invasion On Xinjiang Features Fruit

The world trade globalization has greatly promoted with the accelerating of the global economy integration, which provide a pathway for the alien species to invade, disseminate and spread around the world. The biological invasion has caused irreversible ecological disaster and enormous economic lisses in many countries in the world.When the time to developed distinctive forestry fruit, the special geographical location and geographical advantages lead the problem of alien species invasion. Because of less knowledge of alien species, it is always miss best time to control them, furthermore, lack of natural enemies restricted made huge lose by alien species. This paper based on alien pest species which were imported on fruit and forest, combined the regional characteristics of Xinjiang, the result shows that:(1) Considered of geopolitical conditions of Xinjiang, consult lots of literature data, comprehensive consideration on environment characteristics, development feature of special fruit production and social and humanistic characteristics on Xinjiang, refined peliminary assessment list of alien species in special fruit of Xinjiang from large information, this list included pest, disease and harmful weeds, considerd the possibility of every kinds of pest which can have effect on special fruit production on Xinjiang, and proposed risk management measures of every pest, offers the reference opinions to special fruit to this production developed healthy.(2)The result of pest risk analysis in Xinjiang shows that:Erwinia amylovora has highest risk in Xinjiang;evaluation fraction of Agrilus mali Matsumura and Hyphantria cunea (Drury.) also has high risk, fraction over2.3:evaluation fraction of Daktulosphaira vitifoliae Fitch and Holcocerus hippophaecolus are over2.2; evaluation fraction of Solanum rostratum Dun. Solidago Canadensis and Saperda candida Fabriciu are over2.1. Comprehensive evaluation showed that all this8species have high risk to Xinjiang. About the analysis result, this paper puts forward measures of risk management, and discussed the content and direction in the future.(3)Refmed2species of harmful weeds:Solanum rostratum Dun and Solidago Canadensis L., both of them were disveried in Xinjiang, and Solanum rostratum Dun was already establishment population in Xinjiang, there has more focus about danger and destruction on grasslang, farmland and garden landscape than forest and fruit aspects. There had has reports of weeds made the complet loss in harvest in a town’s orangery in Zhejiang Province, this research holds that weed has the great harm on Xinjiang special fruit production, and wanted to ler PRA on Xinjiang were integrity than before.