The use of kairomones for foraging decisions by an aphid parasitoid in small host aggregations

atrayentes attractants attractif auxiliaire de lutte biologique behaviour biological control organisms brevicoryne brassicae cairomonas chemical ecology comportamiento comportement diaeretiella rapae ecologia ecologie ecology enemigos naturales ennemi naturel foraging honeydew insecte utile kairomones mielada miellat modele modelos models natural enemies parasitoides parasitoids recherche de nourriture secretion useful insects