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根据湖北省林业有害生物生物学特性、发生规律和防治情况,结合湖北省去年越冬基数调查、林内天敌种群情况及有关气象资料,经综合分析,湖北省森林病虫防治检疫总站预测2013年主要林业病虫害共发生501.82万亩,其中病害预计发生47.83万亩,虫害预计发生448.44万亩,鼠兔害预计发生5.55万亩;有害植物预计发生127.40万亩。一、森林害虫预测总发生448.44,万亩,比2012年略有上升,仍属偏重发生。1.马尾松毛虫预计发生122.51万亩。全省现有松林面积3900多万亩,除恩施州、随州市、咸宁市处于低发生虫口
According to the biological characteristics of pests in Hubei Province, the occurrence and control of pests, combined with the overwintering base survey in Hubei Province last year, the population of natural enemies in the forest and related meteorological data, a comprehensive analysis of Hubei Province Forest Pest Control Quarantine Station forecast 2013 major forestry A total of 501.82 million mu of pests and diseases occurred, of which 478,300 mu were expected to occur for diseases and pests, 4,484,400 mu were expected to occur for pests and pests, 555,000 mu were expected for rat and rabbit fears, and 127.4 million mu pests would be expected to occur. First, the total forest pests forecast 448.44 million mu, slightly higher than in 2012, still belittle the occurrence. 1. Dendrolimus caterpillar is expected to occur 122.51 million mu. The province’s existing pine forest area of more than 3900 mu, except Enshi, Suizhou, Xianning City in the low incidence of insect population