If the planting area is completely devoid of all plants except weeds, you could rent a flame thrower to burn the seedlings. You will want to get a demonstration on to how to use it, and take precautions to avoid heating areas like lawn edges or nearby trees and shrubs. If done in a controlled manner, it is very effective in eradicating annual seedlings (you need to target foliage so let them grow to 1–2 inches before you put flame to them). Note: perennial weeds will return and will need to be hand-pulled.
Hi Joanne,
If the planting area is completely devoid of all plants except weeds, you could rent a flame thrower to burn the seedlings. You will want to get a demonstration on to how to use it, and take precautions to avoid heating areas like lawn edges or nearby trees and shrubs. If done in a controlled manner, it is very effective in eradicating annual seedlings (you need to target foliage so let them grow to 1–2 inches before you put flame to them). Note: perennial weeds will return and will need to be hand-pulled.