QuestionCan I use a grass killer on unwanted grass growing under large pine trees without harming the trees?
Answerorest
yes you can if you apply it properly. the only effective way i know of that keeps it nice looking and works is spraying with roundup.
spray the grass areas w/roundup herbicide as per the labeled directions(normally 2 oz concentrate/1 gallon water). it will only kill the plants whose foliage it comes into contact with. it won't harm the trees(or other plants) as long as none gets on their foliage. the grass areas will turn to dirt(2-4weeks). keep the weed under control by hand pulling or repeat applications of roundup. spraying once a month during the growing season is usually enough to keep it under control and nice looking.
good luck
rick
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