Perrone Ricalde, M., Edson Nava, D., Enimar Loeck, A., Bisognin, A., Fick Coutinho, E., & Mello García, F.R. Occurrence of Scale Insects in Olive Groves in Rio Grande Do Sul State. Acta Horticulturae 1057: 379-384

Keywords:

diagnosis

distribution

economic importance

host

list

Notes: Three species were identified: Saissetia oleae, Saissetia coffeae and Quadraspidiotus perniciosus. The first two occurred in all groves, and the third, only at the grove of the municipality of Rio Grande, in treesover 40 years old. These scale insects reduce the plant vigor, owing the sap suction, however, the main damage is related to the decrease in photosynthesis by the appearance of sooty mold caused by the fungus Capnodium sp.