Recently I noticed little aphids clinging to the rose buds in my Medicine Wheel garden, so I gathered fresh yarrow to make a natural insecticide. To make this natural remedy, snip up fresh yarrow into a bucket of water and allow it to brew in the sun then overnight for about 24 hours. Strain off the liquid and pour in a plastic spray bottle. If you want to measure proportions, add 2 quarts of fresh yarrow to 2 gallons of water, or a ratio of 1 part herbs to 4 parts water. Let the brew sit overnight before straining off the liquid.
I apply the spray in the evening when my roses and hops are in the shade to avoid burning tender leaves or buds. For prevention and as a natural fertilizer the yarrow brew can be applied to the base of the plant.
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