are tobacco hornworms poisonous is that a tobacco, or tomato, hornworm? FS1389: Hornworms in the Home
Description
This stage is when the most behavioral change occurs

The association with tobacco is over and gone, but it is very easy to open your pack of Big League Chew and share a pinch or two with your friends while you watch a movie or hang out at a baseball game
2 Previously, there has been a discrepancy in the terminology used for the classification of ST-associated lesions, as evidenced in studies by Axll et al., Greer and Poulson, and Tomar and Winn (Table 11)
The Smokeless States National Tobacco Policy Initiative: State Progress Report 2002
