橡胶树红根病的蔓延速度及预测预报

橡胶树红根病菌主要依靠根系接触蔓延传染,其蔓延速度与橡胶树种植密度等有关。依据大田橡胶树发病情况调查,推导出红根病在橡胶树林段中的蔓延速度公式。运用此公式对橡胶树红根病在大田中的蔓延发展进行预测预报,结果与实际情况相似

Spread Speed and Forecast of Rubber Red Root Disease

A formula for spread rate of rubber red root in a stand of rubber trees wasdeveloped according to the pathogenic spread speed of rubber red root on lateral root ofrubber trees as well as planting density. This formula was proved by the field survey ofthe disease spread rate in different stands with various planting densities,and can hencebe used to better forecast the field spread of this disease.