Succulent new green growth is particularly susceptible to aphid attack. Spray strong stream of water on damaged foliage to remove pests. Leave clippings to return nutrients to the soil or add to compost heap, especially if clippings are thick and wet. If you are applying grass seed, do not use a pre-emergent weed killer in the same area. Fertilize lawn in mid-May if necessary.
Late fall is an alternative time to fertilize.
Monitor for weeds and hand pull or spot treat accordingly. Thin carrots, beets and late lettuce. Harvest green onions, lettuce and radishes. Spread several inches of aged compost on vegetable and herb beds, if not done yet. Remove flowers of June-bearing strawberries as soon as they appear.