Apply crabgrass pre emergence control about mid month. Crabgrass germinates when soil temperature reach 55 degrees. This requires five consecutive days of 65 degrees or higher. If we have a wet spring, wait until later to apply control to prevent barrier from leaching below seed.
If turf is in need of fertilization, apply only one-quarter pound nitrogen per one thousand square foot of turf. If you have applied the maximum fall application, then spring and early summer fertilization is not needed. A good analysis turf fertilizer should have a ratio of 4:1:2 with slow release nitrogen.
Rolling of turf should be avoided unless there has been excessive heaving or mode damage.
Rolling causes compaction and poor root development.
If season is advanced, mowing might begin. First cut should be slightly shorter to encourage greening.
Trees, Shrubs and Perennials:
Continue scouting plant material for signs of insect and mechanical damage. Remove any dead or damaged branches or limbs. Make applications of Bordeaux (lime-sulfur mix) or copper sulfate for control of mildew on perennials. Apply pre emergent control to beds;
use granular material such as Treflan or Goal. If winter annuals are present, use a tank mix of roundup and surflan to control emerged, as well as non-emerged, weeds.