تاثیر نوع فرمون و نوع تله‌ در شکار انبوه پروانه فری (کرم خراط گردو) در منطقه سامان چهارمحال و بختیاری

Leopard moth (Zeuzera pyrina L.) is one of the most important wood borers which attack walnut and apple trees in different parts of Iran especially Chaharmahal va Bakhtiari province. Control of the pest larvae is very difficult, because the insect larvae make galleries inside the branches and stems. Application of the pheromone traps is one of the most effective methods which recommended to mass trapping or mating disruption of the adult males. The main goal of this study was to evaluate efficiency of two pheromones (Synanthedon tabaniformis and Z. pyrina) and two pheromone traps (Delta and Funnel) in mass trapping of the adult males. The project was carried out based on the completely randomized block design with four treatments in six replicates. The treatments were included: Zeuzera pheromone + delta trap, Zeuzera pheromone + funnel trap, Synanthedon pheromone + delta trap and Synanthedon pheromone + funnel trap. Pheromone traps were installed at the height of six meters at the outer edge of the tree crown, on May 5th (before emergence of the adult males). Observation was done weekly during the moth flight period and the number of trapped moth was counted and compared in different treatments. Results indicated a significant difference between pheromones and Z. pyrina pheromone (4.8±1.6 per trap) captured more number of adult males compare to S. tabaniformis (3.09±1.3). Moreover, delta trap (4.5±1.7) significantly captured more number of the adult males compare to funnel trap (3.2±1.5). Based on the results, efficiency of mass trapping can be increased in the walnut orchards by choosing both suitable pheromone and trap.