Question

what characteristic of weeds makes crop rotation an effective form of weed control? crop rotation is an ineffective method of weed control. weeds tend to match the life cycle of the crop plants which makes them more difficult to control. weeds usually are the same species as the crop plants. weeds tend to grow directly on the crop plant and steal their nutrients and water from the stem.

Explanation:

Crop rotation disrupts the life cycle of weeds that tend to match the life cycle of crop plants. By changing the crop species in a rotation, the environment for the specific weed species is altered, making it harder for them to thrive as their life - cycle - matching crop is no longer present.

Answer:

Weeds tend to match the life cycle of the crop plants which makes them more difficult to control.