مقایسه اثر دورکنندگی حشره‌کش‌های کاراته‌زئون (شیمیایی) و آف‌کیلر (ارگانیک) روی حشره کامل مگس میوه مدیترانه‌ای در میوه نارنگی

Mediterranean fruit fly Ceratitis capitata (wiedemann) is one of the most important pests of fruit trees, which has been raised as a serious threat in the production and export of garden products in the northern provinces and some other regions of the country in recent years. Therefore, in order to manage this pest, it is necessary to use efficient methods. In this research, Aphkiller (Pyrethrin 1.5% EW) was used as an organic insecticide to repel and inhibit Mediterranean fruit fly spawning compared to the chemical insecticide Karate Zeon (Lambdacy halothrin 10% CS) in garden conditions. This study was conducted in a three-hectare citrus orchard of Citrus reticulate of Miyagawa cultivar located in Sari city. The experiment was carried out in the form of split plots in the form of a randomized complete block design. The test factors included insecticide (Karate Zeon, Aphkiller and control (spraying)) and time (10 weeks of statistics). Each insecticide treatment was tested in three replicates and 3 trees in each replicate. At first, the number of healthy and infected fruits of each tree was counted and the infected fruits were collected from the base of the trees. Investigations were done based on infected fruits on the tree and under the tree. The fruits under the tree were taken to the laboratory to record the presence or absence of fruit fly larvae. Also, the fruits suspected to be damaged by fruit flies were marked and examined later. The results showed that from the first to the fourth week, Aphkiller and Karate Zeon had a lower and significant percentage of fruit contamination than the control. In the fifth and sixth weeks, Aphkiller (organic insecticide) compared to Karate Zeon (chemical insecticide) and control (spraying) showed the lowest percentage of infected fruit. But from the 7th to the 10th week, Karate Zeon showed better performance than Aphkiller and control. So that the average percentage of fruit contamination during 10 weeks of statistics for each tree was 0.42% for Karate Zeon, 1.28% for Aphkiller and 1.82% for control. Due to the fact that during the first six weeks of the evaluation, the organic insecticide Aphkiller showed a better performance than the chemical insecticide Karate Zeon, with proper management, this safe insecticide can be used to reduce the damage of the Japanese mandarin fruit crop.