Do caterpillars eat poison ivy

Yes, some caterpillar species do eat poison ivy. Notably, the Eastern Tiger Swallowtail caterpillar feeds on poison ivy leaves, as well as other plants. These caterpillars have adapted to consume toxic plants, which can help them deter predators by making them taste bad or even toxic themselves. However, not all caterpillars can eat poison ivy, as many are sensitive to its toxins.