我国生物多样性控制病虫害的研究（英文）

Ｔｈｅｐｌａｎｔｄｉｖｅｒｓｉｔｙｕｓｕａｌｌｙｓｕｐｐｒｅｓｓｅｓｄｉｓｅａｓｅｅｐｉ ｄｅｍｉｃｓａｌｔｈｏｕｇｈｔｈｅｅｃｏｌｏｇｉｃａｌｍｅｃｈａｎｉｓｍｓａｒｅｎｏｔｆｕｌｌｙｋｎｏｗｎ .Ｔｈｉｓｅｃｏｌｏｇｉｃａｌｐｒｉｎｃｉｐｌｅｉｓｍａｎｉｆｅｓｔｅｄｉｎｂｉｏｄｉ ｖｅｒｓｉｔｙ ｒｉｃｈｃｒｏｐｐｉｎｇｐｒａｃｔｉｃｅｓｔｈａｔｒｅｄｕｃｅｃｒｏｐｄｉｓｅａｓｅｓｉｎｍａｎｙｓｕｂｓｉｓｔｅｎｃｅ ｆａｒｍｉｎｇｓｙｓｔｅｍｓ.Ｍｏｄｅｒｎａｐｐｒｏａｃｈ ｅｓｔｏｄｉｓｅａｓｅｃ…

Cultivating Biodiversity for Disease Control,A Case Study in China

The plant diversity usually suppresses disease epidemics although the ecological mechanisms are not fully known. This ecological principle is manifested in biodiversity-rich cropping practices that reduce crop diseases in many subsistence-farming systems. Modern approaches to disease control are not suitable to these farming systems. Pesticides are often costly to use. New biological technologies have only developed few disease-resistant varieties of commercial value. Many landrace varieties preferred by subsistence farmers remain susceptible to disease epidemics when farmers try to enlarge their areas for markets. As a result, these landrace varieties are often marginalized and replaced when farmers apt to plant more and more commercial disease-resistant varieties.