

Organic options won’t kill the fungus, but will prevent it from spreading. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. This will not stop all the weeds, but the few that make it through can be easily picked by hand.

You can also try to use wood chips to cover a certain area where you do not want anything to grow. This may take more time than using a synthetic herbicide, but you can feel a little better about using these products. You can also try pouring boiling hot water or spraying white vinegar on the target plants. This is probably one of the most difficult methods because there is no assurance that you will get the whole plant out this way. You can manually pull the plants out of the ground. If you don’t plan on using herbicides, there are a few organic methods you can use to try to get rid of toxic plants.


If you follow the instructions precisely, then everything should run smoothly for you. Once you have purchased the herbicide you will want to make sure to follow the label posted on the container. You can find many herbicides meant for yard use by simply searching the term online. This can be especially easy if you own a grass lawn and use an herbicide that targets broadleaf (non-grass) species. The easiest but possibly most controversial way to get rid of poisonous plants is by using herbicides. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Reapply as directed on the product label. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water.
