Integrated pest control on vineyard
1996
Oliva, J. | Navarro, G. | Barba, A. | Camara, M.A. | Navarro-Garcia, S. (Murcia Univ. (Spain). Dept. of Agricultural Chemistry, Geology and Pedology)
An integrated pest managing (IPM) in the cultivation of vine in a representative plot located in the municipal term of Jumilla (SE of Spain), zone of great tradition on wine-producing was realized. During the period between May (training of the bunch and prefloration) and September (vintage) of 1995, the infection areas of grapevine downy mildew (Plasmopara viticola), grapevine powdery mildew (Uncinula necator) and grape berry moth assaults (Lobesia botrana), principal pest of this zone, were controlled with a periodicity of 15 days. The control was accomplished through visual estimate, with support of the climatological temperature data and dampness supplied by a meteorological station installed in the zone. For the control of Lobesia, traps with pheromones of sexual attraction in order to obtain the corresponding flight curves were used. Phytosanitary products utilized for the control of this pest were: Turex (Bacillus thuringiensis, var. aizawai), Topas (penconazole) and Ridomil (metalaxyl with copper and mancozeb). Twenty eight days after treatment, residual levels of penconazole, metalaxyl and mancozeb were 0.035, 0.1 and 0.18 mg per kg and calculated half-life times in grapes were 14, 8 and 13 days respectively. During the harvesting of the grape, considerable residues of none of the cited compounds were not found.
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