WI: Usage of herbicidal warfare to destroy crops in WWII?

Exactly as it says on the tin. What are the ramifications of herbicidal warfare to deny usage of food crops during WWII in both the Pacific and Atlantic theatres? The earliest such tactics were used was during the Malayan Emergency by the British in the early 50s.
 
It was seriously considered during planning for the invasion of Japan: herbicides known as VKA and VKS were manufactured, and considered to spray on the Japanese rice crop, but no firm decision had been made prior to the end of the war.
 
In both cases, the Axis really can't reply in kind to what the US could do with Rice Blasts and Wheat Rust.

A reply with Chemical weapons on the battlefield is also a loser, the Germans with all those Horses and Japanese troops in bunkers with almost zero decontamination gear and air scrubbers.
 
Possible I suppose, I mean the British were prepared to use Paris Green (a known insecticide and rodenticide) in the event of an invasion, and later there was talk of using Anthrax to destroy Germany's meat production. Herbicides don't seem to have occurred to them though.
 
Well bombers would carry too much of a payload, but a mass of fighters with a few incendiary rounds each might do it.
 

Pangur

Donor
Well bombers would carry too much of a payload, but a mass of fighters with a few incendiary rounds each might do it.

Set fire to a field? Highly unlikely with cannon fire. Give them napalm to drop n that would work if they wait until they have a decent wind blowing
 
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