Spray Deposition and Efficacy of Four Petroleum-Derived Oils Used Against <I>Tetranychus urticae</I> (Acari: Tetranychidae)

• DOI: 10.1603/ec09242
• Publication Date: 2010-03-31T16:20:54Z
• Authors: Patricia Chueca; Cruz Garcerá; Enrique Moltó; Josep A. Jacas; Alberto Urbaneja; Tatiana Pina
• Keywords: Tetranychus

Petroleum-derived spray oils (PDSOs) offer an interesting alternative to acaricides control the twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), a key pest of clementine mandarins, Citrus reticulata Blanco. However, there is lack knowledge on how these products should be used. In this study, we evaluated efficacy four PDSOs (Sunspray Ultrafine, Volck Miscible, Texaco D-C-Tron Plus, and Agroaceite) at five concentrations (0.5, 1.0, 1.5, 2.0, 3.0%) against eggs, protonymphs, adults T. urticae. We also characterized deposition pattern find out possible relationship between factor efficacy. general, for all PDSO assayed, higher concentration, coverage, mean area impacts The biggest corresponded Plus. This was most effective one its independent concentration than 1.0%. same applied 1.5-2.0% Agroaceite, Sunspray with high efficacies adults. are highly urticae, use encouraged in integrated citrus management programs Spain. next step will ascertain under real field conditions.