[sgxin]

Tot corn farming doesn't need pesticides till I googled.
So best is to wash/rinse the sweet corn before cooking/eating.

CONCLUSIONS
Soil and climate conditions in South and Southeast Asia are ideal for maize production. However, maize yields are very low. Uncontrolled weeds, insects and diseases are a major cause of low yields. The growing demand for maize in Asia will have to be met by increased domestic production from adoption of new technologies. Efforts to reduce maize losses through the adoption of pesticides offer tremendous opportunities for increasing and stabilizing maize productivity in Asia. Losses can be minimized by following recommended methods for applying insecticides, fungicides, and herbicides.

https://croplife.org/case-study/importan...east-asia/