بررسی اثر سم لامبدا سای هالوترین و استامی پراید در کنترل پسیل زیتون

In the urban greenspace, the beauty, greenness and freshness of trees and shrubs are important. Unfortunately, in recent years, with the introduction of the olive psyllium Euphyllura straminea Loginova (Hemiptera: Aphalaridae) into the green space, the beauty of the olive bushes has decreased due to the presence of white threads resulting from the feeding of the psyllium.
Olive psyllium is considered the most important olive pest, in this research the effect of two insecticides on the growth stages of olive psyllium pest in Tehran city was evaluated. Lambda Cyhalothrin and Acetamiprid toxins test treatments were 0.25, 0.5 and 0.7 per thousand with 3 repetitions and distilled water as control. which was done in the form of a completely randomized block design. Each experimental plot includes three trees (trees are 15 years old) and the distance between the plots and blocks was considered to be about 25 meters from each other. Due to the low speed of whole insects in flight and movement, sampling was done one day before spraying. In each sampling, the four outer directions of each tree were selected and after separation and packaging, they were transported to the laboratory and counting of whole adult, eggs and nymphs was done with binocular. The results showed that in the treatments on whole insects and at the time of 24, 48 and 72 hours after spraying the dose of 0.5 thousand lambda and estamipride, respectively, 94.34±3.61 and 89.55±3.45, and on Nymphs dosed 0.25 per thousand 90.22±2.15 and 88.41±24.62 percent of casualties had the greatest effect. The doses used did not affect the eggs.