There two major species that are referred to by the name “hornworm.” These species’ scientific names are Manduca quinquemaculata and Manduca sexta. This species is harmless to humans – although it is a well-known pest throughout the US, where they are native to. Luckily, they have not quite reached the point of creating significant economic damage to crops across the country and are typically only the bane of the hobbyist or small-space gardener. One of their names, the tomato hornworm, tells it all. This hefty caterpillar is most recognized for targeting tomatoes but will also feed on other vegetables in the nightshade family, including eggplants, peppers, and potatoes. In one year, there may be two generations to pass through one crop.
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