Studies On Distribution,Occurrence And Ecological Factors Of Camptoloma Interiorata

Camptoloma interiorata(Walker) is Quercus spp. leaf important pests. Pests domestic distribution is happen in Heilongjiang, Jilin, Liaoning, Hebei, Shandong, Henan, Jiangsu, Zhejiang, Fujian, Guangdong, Guangxi, Yunnan, Sichuan, Hunan, Hubei, Anhui and other provinces, foreign distribution in the Russian Far East, the Korean Peninsula and Japan. In Jilin Province, pests mainly against Quercus mongolica, especially in the early spring, the larvae nibble the buds, so that trees can not sprout leaf, seriously affecting the growth of trees, and even cause death of large areas of forest. Changbai Mountains in Jilin Province, the pest happen seriously in 1971, 1981-1983, 1985-1987, 2007 to 2009 and 2011, the area occurred in 2011 only amounted to 55.3 thousand hm2(mild area of 17000 hm2, moderate area of 15100 hm2 heavy area of 23200 hm2), Generation region relates to Tonghua, Jilin City, Liaoyuan and 10 counties(cities, districts), Redstone Forestry and brightness by Huinan Senjing Bureau. Although the pest is serious to Quercus spp., so far, research on Law and population and environmental factors and other aspects of the relationship between the occurrence of forest pests are rarely reported. Providing a theoretical basis for the integrated control of insect, the author in Dongliao(Liaoyuan), Huinan(Tonghua city) Dongfeng county(Liaoyuan), Panshi, Jiaohe and Redstone Forestry Bureau(Jilin), at the local in 2007 to 2009 or 2011, this insect has a corresponding degree of harm suffered during the stand factors were investigated pest occurrence and extent of the relationship between environmental factors, and draw the following conclusions:The plague area of Camptoloma interiorata in Jilin Province mainly concentrated in the central region which features centrality and fiat connectivity.The regional geographic coordinates roughly 42°31 ’N ~ 44°40’ N, 124°51 ’E~ 127°56’ E. The plague area beyond Dunhua which located at the northeast of Jilin and the edge of Baishan, including Changchun and Siping.The field belong to hilly and lower mountainous areas in the east of Jilin Province, located in the west of changbai mountain lava plateau and zhongshan(except An Wai tonghua, sets), east of Montenegro.The natural distribution of Camptoloma interiorata in Jilin province has its certain inherent law, it is also influenced by natural factors. Tree species is the stand factor and Crown density that has an important influence on outbreaks of Camptoloma interiorata.Above conclusion has solved the forecasting of outbreaks of Camptoloma interiorata in Jilin province on the whole, which will be beneficial to predicting the outbreak of the Camptoloma interiorata in the production and living in the future.