How to Tell the Difference Between Tomato and Tobacco Hornworms
This video by North Carolina State University’s Small Fruit & Tobacco IPM Lab shows the similarities and differences between tomato and tobacco hornworm caterpillars and moths.
Both species of hornworm caterpillars feed on tobacco and other plants, and the tobacco hornworm (Manduca sexta) and the tomato hornworm (Manduca quinquemaculata) are easy to confuse because they look similar and have similar life cycles. However, you can tell them apart because:
1. The tobacco hornworm caterpillar has black margins on its white stripes and it has a red horn, but the tomato hornworm has green margins on its white striptes and it’s horn is blue.
2. The tobacco hornworm adult (the moth) has six orange spots on its abdomen, but the tomato hornworm only has five orange spots.
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