Behavioral and Antennal Responses of to Essential Oil and Its Main Constituents: Perspective for Their Use as Repellent.

Essential oils of aromatic plants represent an alternative to classical pest control with synthetic chemicals. They are especially promising for the alternative control of stored product pest insects. Here, we tested behavioral and electrophysiological responses of the stored product pest , to the essential oil of a Brazilian indigenous plant, collected in the Caatinga ecosystem.

Alarm Pheromone Responses Depend on Genotype, but Not on the Presence of Facultative Endosymbionts in the Pea Aphid .

Aphids use an alarm pheromone, E-β farnesene (EBF), to warn conspecifics of potential danger. The antennal sensitivity and behavioural escape responses to EBF can be influenced by different factors. In the pea aphid, different biotypes are adapted to different legume species, and within each biotype, different genotypes exist, which can carry or not , a bacterial symbiont that can confer protection against natural enemies.