Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract Full Text

Changes in terpenoids emission of cotton plant infested by invasive mealybugs, Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae).


The terpenoids emission of cotton plants were analyzed qualitatively and quantitatively under laboratory condition with the treatments of mechanical wounding (MW), salicylic acid inducement (SA), short-term mealybugs injury (S-MF), and long-term mealybugs injury (L-MF). The results showed that total 5 kinds of terpenoids were qualitatively identified, including α-Pinene, β-Pinene, (+)-Longifolene, (-)-alpha- (SG), and Cedrene. The infestation by the invasive mealybug Phenacoccus solenopsis elicited the Cedrene and (+)-Longifolene, and increased significantly the emission of α-Pinene, β-Pinene, and (-) -alpha- (SG). The treatments of MW and SA also increase partly the emission of α-Pinene, β-Pinene, and (-)-alpha- (SG). These results provide an important scientific basis for the biological control of P. solenopsis with the rational use of herbivore-induced plant volatiles.