Automatic in-field fruit recognition techniques can be used to estimate number, size, skin color, and yield in crops. Fruit color size represent two of the most important quality parameters stone ( Prunus sp.). This study aimed evaluate reliability a commercial mobile platform, sensors, artificial intelligence software system for fast estimates peach persica ), nectarine P. var. nucipersica plu...

Prunus and Pyrus species affected with phytoplasma diseases, as well as leafhopper species collected from Prunus and Pyrus fields in Ontario, Canada were tested for presence of phytoplasmas. Preliminary results showed that Graminella nigrifrons is a potential vector for phytoplasma groups 16SrI-W (‘Candidatus Phytoplasma asteris’), and 16SrVII-A (‘Candidatus Phytoplasma fraxini’) to a variety o...

Plant pathogenic organisms are known to affect plants by secreting enzymes, toxic compounds and phytohormones (IAA, KIN, GA, Zeatin and ABA). In the present study, bacteria were isolated from infected Prunus salicina. It was identified by biochemical tests and rDNA sequencing. It was studied for production of zeatin, a phytohormone known to influence plant growth and development. Conditions for...

Plum pox virus (PPV) is the causal agent of Sharka disease. Since its discovery, Sharka has been considered as a calamity in plum orchards. PPV is present worldwide in many Prunus species, causing great economic losses. In highly susceptible plum varieties, such as Požegača, PPV causes a premature fruit drop and reduces fruit quality, which leads to total yield loss. Eight PPV strains (PPV-M, P...

Plum curculio, Conotrachelus nenuphar (Herbst), is a quarantine pest of many temperate fruits, such as pomes, Malus spp.; stone fruits, Prunus spp.; and blueberries, Vaccinium spp.; in North America east of the Rocky Mountains and a small area in Utah. There are two strains, a northern univoltine one that undergoes obligate diapause as an adult and a southern multivoltine strain that usually ha...