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随着我国种植业结构战略性调整的实施,我国各地积极引导农民进行品种结构布局调整,大力发展质量效益型农业,以适应市场经济发展的要求。但是结构调整也为病虫暴发提供了有利条件,特别是品种结构调整后,种子调运引起的危险性病虫传播蔓延给我国农业生产构成了潜在性巨大威胁,近两年因盲目引种调种引起病害暴发而留下深刻教训。引种调种导致病虫暴发的原因来自两方面:一是种子本身携带病虫引
With the implementation of the strategic adjustment of planting structure in our country, all localities in our country actively guide peasants to readjust the structure and variety of varieties and vigorously develop the agriculture of quality and benefit so as to meet the requirements of market economy development. However, the structural adjustment also provided favorable conditions for the outbreak of pests and diseases. Especially after the structural adjustment of breeds, the spread of dangerous pest and disease caused by the transfer of seeds poses a potential huge threat to agricultural production in our country. In the past two years, it was caused by the blind introduction of seeds Disease outbreak and left a deep lesson. The introduction of seed adjustment causes the outbreak of pests and diseases from two aspects: First, the seed itself carries disease