In the uplands of Cambodia, it is described as an important agricultural weed.

As an agricultural weed it can reduce crop yields by up to 50%.

The plant grows as an agricultural weed in Florida citrus groves.

It was first introduced into the United States in the 1980s to attack this agricultural weed, which is its main foodplant.

It is also an agricultural weed in crops such as sugar cane and lucerne.

Host species include most if not all plants in the Brassicaceae family, common agricultural weeds, and those specified below.

This is sometimes an agricultural weed, especially of soybeans.

Black nightshade can be a serious agricultural weed when it competes with crops.

Various members of the genus are classed as agricultural weeds.

It is considered an agricultural weed in western Canada.