مقایسه کارآیی برخی حشره‌کش‌ها روی پسیل معمولی، Agonoscena pistaciae Burckhardt & Lauterer و برخی خصوصیات باغبانی درختان پسته در کاشان

The pistachio tree belongs to Anacardiacae family, a bipod plant, deciduous, or evergreen. This genus has 13 species and the species (P. vera L.) or pistachios have thick and smelly fruits. The Common pistachio psylla, Agonoscena pistaciae Burckhardt & Lauterer (Hem.: Psyllidae), is the most important pistachio pest throughout the country, which has several generations (5-6) per year. This research was conducted during the years of 2016-2017 in the ten-year-old pistachio orchards (Akbari variety) of Kashan. The treatments were included Movento®, Palizin®, Pistaguard®, Kaolin (Surround®) 5%, Kaolin 10% and control. The reason for choosing these treatments was their newness and variety due to the type of compound (chemical, plant, probiotic and mineral). Spraying was carried out three times a year, one month from each other (4th of July, August and September), and counting the number of dead and live nymphs with intervals one day prior to spray and 3, 7, 14 and 21 days after spray. The results showed that the effect of treatments and the interaction of treatment on time on live and dead nymphs was significant in both years. Mean comparison showed that the highest pest mortality in all three stages were related to three days after spraying and also the best replication date was obtained one to two weeks after first spraying. Also, Palizin and Kaolin treatments had the most effect. Also, in 2016, the effect of treatment in terms of twig length at the 5% probability level was significant, in terms of number of healthy buds nonsignificant and in terms of number of lost buds at 1% probability level was significant. Replication in terms of, the twig length and the number of healthy buds were significant at 1% probability level, but in terms of number of lost buds was not significant, while in the year 2017, the effect of treatment and replication on any of the measured traits was not significant. Therefore, based on the results of the first year, the main recommended composition, compared with other treatments, was Kaolin 5% with a mean growth of twigs of 24.7±88.51 and the mean number of lost buds of 24.75±1.44.