کارایی توام آفتکش‌ گیاهی ماریاپرو با آرتمیزیا اکو در کنترل پسیل زیتون Euphyllura olivina

Olive psyllid, Euphyllura olivina Costa (Hemiptera: Psyllidae), is one of the most significant pests affecting olive production in olive-growing provinces. This pest, by feeding on plant sap and producing a wax coating, causes a decrease in both the quantity and quality of olive tree yield. In this study, we evaluated the combined effectiveness of Mariapro® and Artemisia Eco-Licotox® at a dose of 1500 ppm and 1000 ppm, respectively, as well as the control (water spraying) in field conditions. We assessed their impact on the pest at time intervals of 3, 7, 14, and 21 days. This experiment was conducted using a randomized complete block design with 11 repetitions in October 1402 at the Fadak field complex in Qom province. The Henderson-Tilton formula was used to compare efficiency during the mentioned period. The results indicate that the use of Mariapro® combined with Artemisia Eco-Licotox® results in high lethality in nymphs. The efficiency percentages of the above treatment compared to the control were 84%, 92%, 85%, and 81% at 3, 7, 14, and 21 days, respectively. The combined application of the two mentioned biopesticides significantly controlled the population of nymphs of different ages and, to a lesser extent, the adults. The population of olive psyllids was significantly increasing until the seventh day, after which it began to decrease at a slower rate. The combined two biopesticides persisted on the olive trees for a long time almost 1 month. In general, due to their high efficiency and persistence, it is recommended to use the combination of the above biopesticides in the recommended dosage to control olive psyllid.