[gregcrv]

It's actually sprayed on food before harvesting. It's called crop desiccation.

https://en.wikipedia.org/wiki/Crop_desiccation

[overcast]

Hrmm, never heard of that. It goes the complete opposite way of the Roundup Ready crops.

[AnimalMuppet]

Well, that technique won't work on Roundup Ready crops. But it's used on things like wheat that are supposed to be dried out when harvested.

[CodeWriter23]

Desiccation is done to increase yield. Stressed / dying plants produce more seed.