Biology of Allothrombium ovatum (Acari: Trombidiidae) and its controlling effect on Aphis gossypii (Homoptera: Aphididae)

aphis gossypii arthropoda auxiliaire de lutte biologique biologia biological control biological control organisms biologie biology campo champ china chine coton cotton depredadores enemigos naturales ennemi naturel fields gossypium insecte nuisible lutte biologique natural enemies pest insects pests of plants plagas de plantas predators prostigmata ravageur des plantes shaanxi