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The use of emulsified oils to control citrus pests is a key component in control management programs. Lack of good quality emulsifying oils causes adverse effects on trees and farmers' dissatisfaction. In this project, the effect of summer emulsified oil with different concentrations on commercial citrus cultivars and the orange pulvinaria scale control was evaluated by the order of Tabriz Abgineh Chemical Company. For this purpose, an experiment was performed in 9 treatments and 4 replications in a randomized complete block design on Thomson Naval and Unshiu cultivars. Spraying with concentrations of 0.5, 1, 1.5, 2% summer oil, summer oil 1% + Pyriproxyfen 0.5 per thousand, emulsified oil (mayonnaise) 0.5%, emulsified oil (mayonnaise) 0.5%+ Pyriproxyfen 0.5 per thousand was compared with the control. The results showed that all treatments did not have a negative effect on the characteristics of the cultivars tested, including: leaf fall, fruit fall, TA, TSS and storage longevity, but emulsified oil (mayonnaise) 0.5%, emulsified oil (mayonnaise) 0.5%+ Pyriproxyfen 0.5 per thousand causes spot on the fruit. summer oil 1% + Pyriproxyfen 0.5 per thousand and emulsified oil (mayonnaise) 0.5%, emulsified oil (mayonnaise) 0.5%+ Pyriproxyfen 0.5 per thousand with 92.48 and 92.89 and summer oil 0.5% and emulsified oil (mayonnaise) 0.5% with 49.05 and 46.13% had the most and the least effect on pest control, respectively. Concentrations of 1% or more in summer oil are not significantly different from each other in pest control. Due to the lack of spot on the fruit and proper control of the orange pulvinaria scale with pesticides, the use of summer oil in citrus orchards is recommended.
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