Effects of Nicotine on Growth, Development, and Survival of the Tobacco Bud worm (Lepidoptera: Noctuidae) and the Parasitoid Campoletis sonorensis (Hymenoptera: Ichneumonidae)

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

Abstract:

When nicotine, the major tobacco alkaloid, was incorporated into an artificial diet, it significantly reduced the 7-d larval and pupal weight and prolonged the pupation time of larval tobacco bud worms, Heliothis virescens (F.). Nicotine was3.7 times more toxic to tobacco bud worm larvae parasitized by Campoletis sonorensis (Cameron) than to nonparasitized larvae based on the ratio of LC•• values. The difference in LC•• was significant. However, slopes of log dose probitlines were not significantly different, suggesting the same nicotine mode of action in both groups. Nicotine between 0.05 and 0.1% wt/fresh wt in the host diet prolonged parasitoid larval development and hence adult emergence time of the solitary endoparasitoid, C. sonorensis, but parasitoid larval development after egression was not affected. At higher concentrations of nicotine (0.1-0.3% wt/fresh wt), a high proportion of fully developed parasitoid larvae failed to egress from the host and those that egressed failed to form cocoons and eventually died. Nicotine did not affect the weight of the parasitized host or the weight of the adult parasitoid.

Document Type: Research Article

Publication date: October 1, 1990

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more