Effective Factors in the Use of Sex Pheromone Traps on the Capture Rate of Plutella xylostella

Effective Factors in the Use of Sex Pheromone Traps on the Capture Rate of Plutella xylostella     Sana Akbari, Alireza Jalalizand*, Esmaeil Mahmoudi Department of Plant Protection, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran     *Correspondence Author: Email: [e-mail]   Received: ۱۰ March ۲۰۲۰                                                                                Accepted:  ۲ June  ۲۰۲۰     ABSTRACT Plutella xylostella L. which known as diamondback moth, is one of the most destructive pests of Brassica crops and causes qualitative and quantitative decrease of yield. Because of high reproductive rate, high capability of immigration and being resistance to many groups of insecticides, the control of this pests is difficult. Application of sex pheromone-baited traps is effectiveness non chemical methods to management of P. xylostella worldwide. This study was investigated the efficiency of color and height of pheromone traps on attraction of P. xylostella male moth in randomized complete block design with six treatments (yellow, green and transparent color with ۷۰ and ۱۲۰ cm height) with four replications. The results revealed that yellow trap with mean of ۹۴.۶ had the highest effect of moth attraction, and transparent traps with mean of ۹.۲ had the least P. xylostella trapping. In two different height of trap assay, the pheromone traps in ۷۰ cm height had the greatest ability to attract the moth with mean of ۵۵.۷ insect. According to the results, the yellow pheromone trap at a height of ۷۰ cm has the greatest effect in attracting the male species of the diamondback moth in cauliflower fields, which can be used to control of this pest.

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Keywords: Cauliflower , Diamond back moth , pheromone trap , sex pheromone