Cunningham reported that temperature and other meteorological elements affect
the diseases of different crops. The change in temperature and its distribution will
directly influence the occurrence and distribution of diseases
and pests of crop plants [5]. In addition, increased precipitation is beneficial
for the occurrence and spreading of crop diseases and is conducive
to the breeding and spreading ofmost types of bacteria [6]. For instance,
precipitation amount and rain days are highly related to wheat scab
epidemic [1], and relative humidity is the key factor to its development.
Furthermore, the greater precipitation amount during winter and spring
helps to increase wheat powdery mildew occurrence and epidemics