Weeds are growing resistant to the herbicides already on the market, and agribusiness companies like Bayer are in a desperate search for new modes of action to help farmers kill them.

Bayer's Icafolin will be its first new mode of action herbicide in some 30 years when it launches in 2028
Company has won 13 of last 20 cases; plaintiffs have won more than $4 billion
Thousands of American farmers who have already bought the herbicide now in a bind after court bans over-the-top use
'Having a single data point... was number one for us'
Pandemic now expected to hit crop science wing
New shatter-resistant varieties may hold the key to continued expansion of this harvest practice