Tannins as a Pesticide
The impact of tannic acid on the growth rates of Myzus persicae and Arabidopsis thaliana
Abstract
We completed a study on the effectiveness of natural pesticides in lieu of artificial pesticides. We investigated the interactions between the plant Arabidopsis thaliana and the herbivore Myzus persicae as well as the effect of tannic acid on these interactions. Our goal was to answer whether a dose of tannic acid would positively or negatively affect both the plant and the animal. We determined that if the pesticide generated a positive or neutral effect on the plant and a negative effect on the herbivore, it could be considered an effective insecticide. After completion and analysis, it was determined that tannic acid is not an effective insecticide for our given study system at those concentrations. It had no effect on aphid growth, and at a 3% concentration in the presence of aphids, a negative effect on plant growth, which presents itself as a possible future herbicide.
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