禾谷类穗腐病系指由穗螨传播的真菌性白穗病。穗螨和真菌之间为专一性的共生关系。螨传播病原菌并刺激菌株生长;菌为螨的食物,并为螨提供适宜的生境。穗螨和真菌这种相互依赖的共生关系又受寄主植物、温度、湿度等条件影响。本文是穗螨与病原真菌共生关系的实验研究结果。 Grains panicle disease refers to the spike mite spread fungal spath. Spike mites and fungi between the specific symbiotic relationship. Mites spread the pathogen and stimulate the growth of the strain; the bacteria is a mite food and provides the mite with a suitable habitat. Spike mites and fungi this interdependent symbiotic relationship has been affected by host plants, temperature, humidity and other conditions. This article is the experimental study of symbiotic relationship between spider mites and pathogenic fungi.