What was the effect of the attacks on farms and trade routes?

The effect of attacks on farms and trade routes were the disruption of supply lines.

Farms that were attacked are usually pillaged and unable to output anything as a result. Trade routes were affected by this similarly, as interruption at one point would disrupt flow of trade on the remainder of the route.

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939