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四川省的小麦主要分布在盆地。当地冬季气温较高,结露条件好。条锈菌侵入秋苗后,冬季不但不需要潜伏越冬,而且还可以不断地进行再侵染,扩大蔓延,为早春的流行为害积累了大量的菌源。常年春季虽然降水不算多,但川西平原的许多子坝和沿河地区,因地下水位高,土壤湿度大,结露条件好,仍然有利于条锈病的流行,其流行强度则常与雨日、雨量多少呈正相关。因此,这类地区成为本省条锈病的常发区。
Sichuan Province is mainly located in the basin of wheat. Local high temperatures in winter, condensation conditions are good. Stripe rust invade Autumn seedlings, the winter not only do not need to lurk overwintering, but also can continue to re-infection, expand the spread of the epidemic for the early spring has accumulated a large number of bacteria. Although there are not many precipitation during spring, many sub-dams and river banks in the western Sichuan Plain are still conducive to the prevalence of stripe rust due to high groundwater level, high soil moisture and good dew condensation conditions. Their prevalence is often similar to rainy days , The amount of rainfall was positively correlated. As a result, such areas have become a regular in the province for stripe rust.