مقایسه تاثیر ترکیبات معدنی، گیاهی و آفتکش های شیمیایی روی کنترل جمعیت شته مومی کلمBrevicoryne brassicae (Linnaeus) درفضای سبز شهری

The use of ornamental flowers in urban green spaces is widely used in different seasons and is an integral part of current urban management. In order to preserve and maintain the beauty of the appearance of all types of plants and the satisfaction of citizens from the mentioned urban management activities, it is common to use various types of pesticides periodically in the urban environment. Cabbage aphid, Brevicoryne brassicae (Linnaeus) is one of the important pests of urban greenery in the winter season, which, if not controlled, causes economic damage and transmission of viral diseases through sucking plant sap. In this research, the effect of two plant compounds, Diabon and Persian lilac (Melia azederach) extract and three mineral compounds containing potassium element including: potassium nitrate, potassium sulfate and potassium silicate and recommended rates of some conventional pesticides (abamectin, acetamiprid and clothianidin) compared to control treatment (water) on the control of cabbage aphid population was evaluated. The effectiveness of the treatments was evaluated by sampling and comparing the population of aphids on ten selected leaves of ten ornamental cabbage flowers, three times at seven, fourteen and twenty one days after spraying. The results of these experiments showed that the treatments of acetamiprid, clothianidin and abamectin were the most effective compounds in controlling cabbage aphid, as well as Melia azederach extract and Diabon were also effective in reducing the population of cabbage aphid in the first seven days. They can be used in integrated management. The results showed that mineral compounds containing potassium are not very effective in controlling the population of this pest in green spaces