ABSTRACT
The coffee red mite Oligonychus ilicis, is widespread in the state of São Paulo, with higher incidence on coffee plantations during the dry seasons. These mites live almost exclusively on the top side of the host leaves. Evaluations of aqueous, ethanolic and hexanic extracts were made for Lavandula angustifolia Mill., Dahlia pinnata Cav., Solanum paniculatum L., Agave angustifolia Haw, Ocimum basilicum L., Solanum melongena L., Rhododendron simsii Planch., Ficus elastica Roxb, Codiaeum variegatum (L.) Bl., Spondias purpurea L., Sonchus oleraceus L., Ruta graveolens L., Annona squamosa L., Pennisetum purpureum Schumach., Dieffenbachia brasiliensis (Veiech) and Allamanda cathartica L. Foliar discs of coffee var. Novo Mundo were immersed in the extract solution for 5 seconds and adult females (20 per replication) were confined on the surface of the disc and kept in an incubator chamber at 25 ± 2º C and 70 ± 10% RU. Survey of the mortality was taken at 48h. The best results of efficiency were obtained with the ethanolic and hexanic extracts of: Dieffenbachia brasiliensis (56 and 52%), D. pinnata (54%), Allamanda cathartica (44%) and S. paniculatum (46 and 48%).
KEY WORDS
Oligonychus ilicis
; acaricide; extracts