Research on the two pests in cherry orchards shows that the phytosanitary treatments used in control must be supplemented with technology elements through a three-factor analysis, based on the method of subdivided plots, with the crown shape, the cultivated variety, and the planting distances as factors. The crown shape has a significant influence in determining the frequency of attack, which can reach up to 30%, and a degree of damage of up to 80%. Also, the cultivated variety contributes in a percentage of over 30% frequency, and a degree of damage of 10-12%. Studying the influence of planting distances on the mode of damage, we find that in general, small planting distances (4x2) increase the frequency and degree of attack by up to 10%. Compared to larger distances (4x3) and (4x4). The results obtained aim to improve the technology of cherry cultivation in an intensive system, within which the correlation between tree density, cultivated variety and the attack of the cherry fly Rhagoletis cerasi L and the black aphid Myzus cerasi F was also monitored. In order to establish measures to stop the appearance of the pests, the contact insecticide Decis Expert 100 EC (deltamethrin 100 g/l) was used, with action both in the larval and adult stages on the pests in the plantation compared to the untreated control.

cherry fruit fly, treatment, variety, black aphid, degree of damage

agronomy

Presentation: poster