According to the pests & disease report made by the National Agri-Tech Extension Service Center (NATESC) in early February 2020, spodoptera frugiperda larvae have been found in 113 counties/ county-level cities/ districts of 6 provinces/ regions including Yunnan, Guangdong, Hainan, Guangxi, Sichuan, and Guizhou. As of early February, a cumulative area of 40,580 ha has been stricken, involving 39,267 ha of corn growing areas, and 1,313 ha of wheat growing areas.
It’s reported that the areas hit by spodoptera frugiperda are mainly those growing winter corn and winter wheat. Of this, 32,733 ha area growing winter corn in Yunnan Province, as well as 3,000 ha in Sichuan Province and 3,267 ha in Guangdong Province where winter wheat also grows, has been stricken by spodoptera frugiperda.
Regarding winter wheat, Yunnan Province (1,133 ha) and Sichuan Province (180 ha) have both been hit.
Neither winter corn nor winter wheat is the main crop growing in China. It is forecast that the period from July to September would be the peak period for the striking of spodoptera frugiperda, and the production of corn and other crops would be hit at that time.
Table 1: Selected crops and areas hit by spodoptera frugiperda in China, January-early February 2020, ha
Note: Others include Hainan Province, Guangxi Zhuang Autonomous Region, Sichuan Province, and Guizhou Province
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