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山东省是蔬菜集中产区,约占全国蔬菜市场供应量40%左右,因而对蔬菜发生重要病害与防治技术,菜农们历来特别重视。2007年在聊城市莘县等部分
Shandong Province is a vegetable-producing area, accounting for about 40% of the national vegetable market supply, and thus vegetables have an important disease and prevention and control technology, vegetable farmers have always paid special attention. 2007 in Shencheng Liaocheng and other parts