ارزیابی کارایی آفت‌کش‌های ارگانیک در کنترل شپشک ستاره‌ای انجیر (Hom.: Coccoidae) Ceroplastes rusci در شرایط صحرایی

The fig wax scale insect, Ceroplastes rusci L. (Hom.: Coccidae) is considered a serious pest of fig which feeds on young shoots, leaves and fruits are causing damage. Therefore, to control of this pest different chemical pesticides were used by gardeners. With the aim of expanding the application of non-chemical pesticides in fig orchards, in this study, the effect of pesticides (Palizin® ± Citral®) and (Tondexir® ± Kimia®) on one instar nymphs of this pest in field conditions in 2017 in an orchard of fig in the city Pol-e Dokhtar (Lorestan province) was investigated. The experiment based on a randomized complete block design with 4 blocks and 3 treatments and each treatment was assigned includes two trees. Treatments were included mixture herbal pesticides Palizin (1500 ppm) ± Citral (5000 ppm), mixture Tondexir (2500 ppm) ± (2000 ppm) and spray with water (control). For estimate the population of fig wax scale insect nymphs randomly assigned the number of 10 leaves were picked of four directions and the number of nymphs on the one day before spraying and 1, 3, 7, 14 and 21 days after spraying calculated. Sprayed with a tractor sprayer conducted and statistical analysis was performed using SAS software. Results obtained showed no significant differences between the pesticides used and both treatments caused reducing the number of nymphs, So that the treatment (Palizin ± Citral) better performance to control this pest and caused reducing population nymph to 87.18, 83.85, 81.39, 79.94 and 70.37 % respectively in times of 1, 3, 7, 14 and 21 days after spraying and treatment (Tondexir ± Kimia) caused reducing population nymph to 87.20, 73.30, 84.83, 43.85 and 56.76 % respectively in the experimental times. This is while in control 46.68, 40.69, 20.08, 38.10 and 43.63 % reduction of nymphs respectively in experimental times was observed. Therefore, the mixture of herbal pesticides Palizin and Citral can be used in the integrated pest management programs and the production of healthy and organic products to control fig wax scale insect.