[align=left]Late October I seeded for a new lawn.* I sprayed my old lawn with a total vegitation killer then I added about 6-12 inches of topsoil*and seeded.* The seed is starting to germinate however I am getting patches of these wild scallions.* The areas are about 6-8 inches in diameter and are rooted in the orginal dirt, they grow up through the new*topsoil.* I have been digging them up but it is getting*to be a little much.* Since the seed is so new I can't imagine I can use any type of weed and feed.* What can I do to prevent them from growing?*[/align]
You might find this helpful.* I will say that I DO NOT recommend ANY of the herbicides they recommend as all are hazardous to your health and the health of the environment.
I prefer this organic method.* The molassas here is horticultural molassas.
Funny, I was cutting scallions for chicken soup last night and missing living further north where they grew wild in my yard and I could always pull them fresh. Find out if yours are edible, and offer fresh greens to your friends if they are. Have a wild onion weekend where you invite everyone pver one day after extensive bragging about how wonderful they are in salad, soup, ect. and get them to pull them for you.
I was watching a gardening program yesterday and they suggested putting a layer of cardboard or 5 to 6 layers of dampened newspaper over the clumps.* The cardboard/paper would break down over time and the lack of sun to that part of the soil would smother the wild onions and wild garlic.* I would suggest you pull back some of the new topsoil and put down the cardboard or paper and then cover that with the newer soil.
To tell which you have, wild onion leaves are flat and wild garlic's are tubular.* Both are edible if you haven't sprayed with toxic chemicals but the wild garlic is much stronger then most garlic you purchase in the grocery or grow in your garden.* The odor persists much longer on the breath with the wild variety.