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Making your own Fungicides, Pesticides and Herbicides

Friday, September 04, 2009

Natural Herbicide (weed killer) Recipes

White Vinegar Spray
2 litres of 10% white vinegar
Add 15 grams orange oil or d-limonene
Add 1/2 tablespoon molasses
1/2 teaspoon liquid soap or other surfactant

Shake well before each spraying. Use to spot spray weeds. Keep the spray off desirable plants.  This spray will injure any plants it touches. Works best on warm to hot days.

The best choice for herbicide use is 10% white vinegar made from grain alcohol.   It should be used full strength. Avoid products that are made from 99% glacial acetic acid. This material is a petroleum derivative. Natural vinegars such as apple cider have little herbicidal value.

Vinegar, salt and soap blend
1 cup vinegar
1/4 cup salt
1/4 cup dish soap

Mix everything together and fill a spray bottle. For more specific targeting, a paintbrush will allow you to apply the mixture exactly where you want it. Watch out for grass or other plants because this natural herbicide can't tell the difference between a weed and your favorite flowers. If you want to grow another plant in the spot immediately, hold off on the salt as it can stick around for a while and hinder future growth.

How it works: the vinegar kills weeds, the salt stops them from regrowing and the dish soap binds it all together.
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