INCIDENCE OF CITRUS RUST MITE Phyllocoptruta oleivora (Ashmead, 1879) Keifer, 1938 (ACARI: Eriophyidae) ON THREE ORANGE CULTIVARS
Keywords:
Citrus sp., rootstocks, Phyllocoptruta oleivora, citrus rust miteAbstract
This research was carried out at Taquari Experimental Station, in order to study the influence of ten rootstocks and three scions of orange in the incidence of the citrus rust mite. The scions of orange cultivars [Citurs sinensis (L.) Osbeck] were 'Valência', 'Hamlin' and 'Seleta Franck'.The rootstocks were: 'Troyer', 'C-20', 'C-65' and 'C-41' citranges [P. trifoliata (L.) Raf. x sinensis (L.) Osbeck]; 'Cleopatra' mandarin (C. reshni); 'Volkameriana' (C. volkameriana); 'Florida' and 'Naci onal' rough lemon (C. jambhiri); 'Taquari' rangpur lemon (C. limonia) and 'Caipira' sweet orange [C. sinensis (L.) Osbeck]. The estimate of the population was made at 15 days of interval. The sampling was based in ten leaves per plant, in five areas with one centimeter of diameter, in each leave. The results support the conclusion that the highest incidence of citrus rust mite occurred in plants with the rootstock ‘Troyer' citrange; the scion of 'Seleta Franck'sweet orange was more infested; between scions of 'Valência' and “Hamlin' sweet orange wasn't difference.
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