Performance evaluation of spirodiclofen, spirotetramat and carboxymethyl cellulose-B for management of Cacopsylla pyri

The pear psyllid [Cacopsylla pyri (L.), (Hemiptera: Psyllidae)] represents one of the most economically significant pests in Serbia and worldwide. It causes direct damage throughout feeding on young stems leaves, but also creates favourable conditions for development plant diseases. In this article susceptibility C. to spirodiclofen, spirotetramat, their combinations with foliar fertilizer (carboxymethyl cellulose-boron, CMC-B) was investigated order assess efficacy. Experiments were conducted accordance standard OEPP/EPPO methods, field trials two localities Republic (Kula, Vrbas), during 2020/21. Results indicate good efficacy all variants control orchards. high spirodiclofen (87.4–95.4%), spirotetramat (82.5–91.8%), + CMC-B (90.3–99.8%), (89.5–96.8%) achieved at both seven days after treatment 2020/21 trials. Also, it can be concluded examinations 14 treatment, where (84.9–92.0%), (81.2–91.7%), (88.9–97.5%), (82.3–92.5%) localities. Based obtained results that researched insecticides is a indicator