Question

many root diseases can be controlled by ______.
a. cultivating around roots
b. root pruning
c. adding compost and beneficial microorganisms to the soil
d. cutting back the top of the plant

Explanation:

To determine the correct answer, we analyze each option:

• Option a: Cultivating around roots can damage roots or spread diseases, so it's not a control method.
• Option b: Root pruning is more for shaping roots or reducing root size, not for disease control.
• Option c: Adding compost and beneficial microorganisms improves soil health, suppresses pathogens, and promotes plant resistance to root diseases.
• Option d: Cutting back the top of the plant (pruning foliage) doesn't directly address root diseases.

Answer:

c. adding compost and beneficial microorganisms to the soil