Excuse me, there is a layer of red powder under the corn. What's the disease? What caused it? Solve it.

There is no picture and no truth. It is recommended to upload clear pictures, which is suspected of rust.

corn rust

It is divided into four types: common rust, southern rust, tropical rust and stem rust. China is mainly an area where common rust occurs. Corn rust mainly occurs in the late growth stage of corn and is generally harmless. Rust can occur in all parts of maize plants, but mainly in leaves.

Prevention and treatment: Fuxing, triadimefon and tebuconazole can be sprayed alternately once every 10- 15 days for 2-3 times in a row.

The above suggestions are for reference only and I hope they will be useful to you.