Can you give the formula for making a weed killer using vinegar and ingerdients?

Question

I read somewhere that you can make weedkiller by mixing vinegar and other ingredients.Does anyone know the formula?

Answer 1

Three parts white vinegar & one part dishwashing liquid in a spray bottle. Soap is a wetting agent which reduces the surface tension of water and allows the vinegar to wet-out the entire leaf surface. Also, the soap helps to break down the protective waxes common on many leaves, allowing the vinegar to better penetrate into the leaf. This solution affects just about anything that it comes in contact with. Do not get it on your benefitial plants. Best used on hot, sunny days and tender young plants. It will not work on dandelions.

Answer 2

Just go buy some distilled vinegar ($2.00 for a gallon at Walmart) and a sprayer from the store.

Regular household vinegar is a 5% acetic acid concentration. While this works on some weeds, a greater concentration is needed for other or more mature weeds. By distilling, a 15% concentration can be obtained, and a 30% concentration can be obtained by freeze evaporation. These concentrated acetic acids, if they are derived from plant sources and not from chemicals, are acceptable for agricultural use by the organic community.

From the USDA...

Technical Abstract: The objectives of these studies were to evaluate 1) the efficacy of vinegar to control weeds when used as a directed spray at the base of crops, 2) rates and volume of vinegar required to achieve weed control when broadcast, and 3) soil drench as a method of control for Canada thistle. The injury to corn in the first experiment ranged from 5-35%. The replicated experiments suggested that the foliar application damaged corn more than the basal spray and the 20 % application was more injurious to corn than the 10% application. The corn grain yields did not show significant differences for all treatments from the weed free controls but the coefficient of variability was very high at 55% due to extreme droughty conditions. The crop injury in soybeans ranged from 5 to 45%, with the younger plants showing more injury than older plants. The soybean yields did not show significant differences among the weed free controls and the vinegar treatments. In all the trials weed control ranged from 90 to100 percent. An investigation of the effect of vinegar soil drench in an established Canada thistle patch was conducted on an Elkton silt loam soil. The results showed 90% reduction in the number of stems and plant biomass in all vinegar treatments compared to the control. The pH of the soils ranged from 5.9 to 6.6 at the beginning of the experiment in October 2001 and declined to 4.7 to 5.2 in the vinegar treated plots a month later. However, the pH in the treated plots ranged from 5.8 to 7.1 by April of the following year.

Answer 3

Vinegar plus nothing. If you use vinegar there are two things to know.1)Do not use vinegar where you want something else to grow. Cracks in a patio are fine. Your garden? NO.

2) Use vinegar as a last resort.