

Hornworms are famous for loving two plants above all others – tomatoes and tobacco. To achieve and maintain that physique, however, they need to eat 16 grams of food every day, whether they are in the wild or in captivity – that’s 4 times their body weight. On average, hornworms grow up to 4 inches long (~10 cm) and about 4 grams in weight. Alternatively, when looked after at home, they will need quite a bit of food to grow well and healthy. That’s why they are often seen as pests by many people. After that, they emerge as their true selves – the large adult Sphinx moth or hawk moths.ĭespite the short time these insects spend in their hornworm phase, they can still cause a lot of damage to farmers’ crops. They spend that time eating as much food as they possibly can before burying in the ground as pupae chrysalis. As caterpillars for the rather large Sphinx moth, hornworms live in this stage of their way for no more than 2 to 3 weeks.
