Question
I live in boston massacusetts area, and have a new home lawn is 1 season old and contractor used poor grass seed , lawn is thin and has clove and crab grass more so clove, with the begining of spring coming, how do i aproach this evectivley, easy fix or extreme fix, the best possible fix to get rid for good  thank you

Answer
i'm in southern NJ.
normally 3 applications of lawn fertilizer w/some weed controls per year is enough to improve your lawn appearance by 90 +%.
for now - in early spring(april-temps in 60's) when daffodils are in bloom) lime w/turf lime(40lbs/1000SF)and apply scotts +halts TB pre-emergent fertilizer. follow the directions on the bags for good results. this will prevent most narrow-leaf weeds from sprouting. it will also allow whatever seed the contractor put down to grow and thicken.
in late spring(june) apply scotts +2 post-emergent TB fertilizer as per directions. wet the lawn lightly just prior to the application to aid the weed control in sticking to the weed foliage(dandelions, clover, chickweed, & other broadleaf weeds). no water or irrigation for 24-48 hrs. after that, if it does not rain, irrigate the area for 15 minutes to activate the fertilizer and broadleaf weed control.
in the fall- (mid to end of sept) start by aerating(rent an aerator) the areas. then apply turf lime(40 lbs/1000 Sq Ft). buy some scotts turf builder lawn fertilizer(no weed controls included) and fertilize as per directed by the label on the bag. over-seed w/the appropriate mixture for your area(sun/shade mix). keep the area moist until germination starts. back off on watering as the weather gets cooler. always water before 2PM and not on rainy days.
visit a local garden center/nursery to see what they recommend for your area. buy products from them & they should be glad to help you plan your project.
check w/your garden center/nursery if other problems arise.
your lawn should look fine from spring thru fall.
good luck
rick
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