Terpenoid concentrations (ng/mg fw) in the honeydew of <i>Aphis gossypii</i> feeding on cotton.

<p>Values are means ± SE, n = 7–10. Honeydew was collected from aphids on Bt and non-Bt cotton plants that were uninfested or infested with larvae of <i>Heliothis virescens</i> (3^rd instar) for 7 days. HGQ: hemigossypolone; G: gossypol; H1/H4: heliocide 1 and 4; H2/H3: heliocide 2 and 3.</p><p>ND- not detectable.</p><p>Terpenoid concentrations (ng/mg fw) in the honeydew of <i>Aphis gossypii</i> feeding on cotton.