Great presentation. We have a new weed in our small apple orchard of 22 trees. The weed is called oxalis or wood sorrel. We use wood chip but the sorrel seems unaffected by it. We tried 45% vinigar, salt and soap solution and it worked, now I'm concerned about the long term effect of the salt on the trees. Does anyone have a simpler solution without using herbisides?
The use of vinegar, salt and soap is very effective...but I'm concerned about the long term effect of the build up of salt. This year we are going to try commercial landscaping paper without any mulch on top as we have learned that any mulch on top encourages weeds to grow.
Did the salt solutikn kill the weeds and they havent come back ? I know woodchips work great for mulch and create a fungal state in the soil.@Jack-wh7qk
Although the vinegar, salt, soap solution kills that weed, there are some weeds seem less effected by it. This weed control method works far better during higher temperatures not cool temperatures. Yes but wood chips does well for the apple trees etc, but it also provides nutritarians for the certain weeds, it just takes time for the wood chips to break down. The best I have found in my other garden is just placing commercial paper over the area where the weeds are. Most weeds need light and taken that away totally destroys their ability to germinate. The best commercial grade paper is the one with the weave in it, it allows water through but not light.
