Use of Bifenazate and Predatory Mite Phytoseiulus persimilis Athias-Henriot to Control Tetranychus urticae Koch on Pepper in Greenhouse Conditions

Tetranychus urticae koch is one of the major pests that cause economic losses in pepper production. in the production of pepper, it is fed on the plant and causes loss of yield and quality in the plant. within the scope of the integrated pest management, acari family phytoseiidae members are generally used for the control of these pests. phytoseiulus persimilis athias-henriot and neoseiulus californicus (mcgregor) (acari: phytoseiidae) are most commonly used to control of mites in greenhouses. p. persimilis is most preferred because it is a specific predator and feeds only on tetranychus species. in this study, the use and efficacy of bifenazate (bif) and phytoseiulus persimilis (pp) in the control of tetranychus urticae on pepper in greenhouse conditions were determined. for this purpose, four-character experiment including bif, pp, bif + pp and control was established according to completely randomized design in the greenhouse. evaluations were performed on the 1st, 3rd, 5th, 7th, 14th, 21st and 28th days after applying bif and pp to determine mite density. according to the 28th day evaluation in 2017 and 2018, the number of hd (moving stage) / leaves was 0.53 and 0.53 hd / leaf for pp; 3.47 and 3.60 hd / leaf for bif; 0.13 and 0.67 hd / leaf for bif+ pp and 6.16 and 6.47 hd / leaf for control respectively. when the applications were evaluated in general, it was determined that the best control of t. urticae during both years was provided by bif+ pp application.