Jeffrey Sexton said: Bill,
I used Basamid when reseeding a nursery green. Awesome product. It is 3,000 sq. feet and we used the whole bag. I applied the product myself with full suit and respirator. It is very fine like sugar so a closed drop spreader even has trouble holding in the product. After the green was prepped, I applied the Basamid with a drop spreader. We covered the green with a tarp. Watered heavy after the tarp was put on. Watered three times per day lightly after initial watering. After seven days I quit watering but left on the tarp. After ten days I took the tarp off and waited one weed before seeding. This green had goose, nutsedge, bermuda and every other week you could name in it before the regrassing process. No bermuda came back. Down side to the product is it is hard to buy, it has a foul odor and you have to be careful when removing the tarp because the gas escape will burn anything above the surface. I have a tree on one side of my nursary and it took every leaf off of it. It did come out the next year though. Hope this helps.
Jeff,
What was the purpose of water after the tarp was applied?
Bill,
I've only used Basamid one time for a nursery and did a similar process to what Jeff mentioned. However, applied with a drop spreader two directions at half rate, watered heavy then covered with a tarp for a week. We uncovered, waited about a week or so, floated and sprigged. Similar to what Jeff said, this green had Goose, all kinds of Bermuda and a ton of other weeds. Other than a few rogue plants that came up (less than a dozen), the green was nice and clean.
And thanks for saying the fumes defoliated the tree, Jeff. We had a couple of Pine groupings around that didn't look so hot(or should I say looked hot) after the fact. I always assumed it was due to leaching of the Basamid in the soil. Never even thought about it being from the fumes. Thankfully the nursery was at our shop and no one ever even saw the trees. I'm sure they were removed after I moved on as they didn't look that great 6-8 months down the road.