Vigorous, unwanted limbs should be removed or shortened on new trees. Watch for forks in the main trunk and remove the least desirable leader as soon as it is noticed.
Remain alert for insect damage. Add spider mites to the list. Foliage of most plants becomes pale and speckled; juniper foliage turns a pale yellowish color. Shake a branch over white paper and watch for tiny specks that crawl.
Watch for 1st generation fall webworm.
Pine needle disease treatments are needed again in mid-June.
Cultivate and mulch. Mulching will reduce about 70 percent of the summer yard maintenance.
Fertilize warm season grasses as per April instructions.
Dollar spot disease of lawns can first become visible in mid-May. Make certain fertilizer applications have been adequate before applying a fungicide.
Seeding of warm-season grasses should be completed by the end of June to reduce winter kill losses.
Brown patch disease of cool-season grasses can be a problem.
Meet water requirements of turf.
Post-emergent control of crabgrass and summer annual grasses is best performed on young crabgrass plants.
Continue to water deeply as needed. Apply at least one inch of water each time.
Softwood cuttings from new growth of many shrubs will root if propagated in a moist shady spot.