Henan Province is one of the important agricultural production provinces in China, and wheat and corn are the main food crops. Wheat black is a kind of hay fever, which will affect the yield and quality of wheat to a certain extent, but has little effect on corn futures.

The occurrence of wheat black may affect the planting area and harvest of corn, and to some extent, it will affect the relationship between supply and demand in the market, which will lead to the fluctuation of corn futures prices.