Diseases may be a problem on onions. Brown leaftips or brown spots on the middle and lower parts of leaves may be caused by plant diseases. Ask your county Extension agent what to use to control insects and diseases. Follow directions on the container. For dry bulb onions, let plants grow larger.
Onions are ready when the main stem begins to get weak and fall.
See figure 3. Pull the plants out of the soil. Let them lay in the garden for 1-2 days to dry. Then remove the tops and roots and let them keep drying in baskets or boxes. Serving Green onions may be eaten fresh, or can be chopped and added to salads.