اثر دود مایع و سرکه ی چوب روی کاهش خسارت کرم گلوگاه انار، در شرایط صحرایی

Pomegranate Fruit Moth (PFM), Ectomyelois ceratoniae (Lep.: Pyralidae), is the most important of pomegranate in Iran and other pomegranate producing countries. Due to the fact that the main cause of fruit infection with PFM is oviposition of moths and the entrance of larvae to the fruit through the fruit crown, thus, by preventing the trees from moths and preventing its oviposition, fruit infection can be prevented. In the present study, with a view to studying repellent compounds, the application of liquid smoke (spray of fruit crown, 20% concentration, and tree spraying, 10% concentration), typical wood vinegar (spray of fruit crown, 20000 ppm, and tree spraying, 10000 ppm) and distilled wood vinegar (spray of fruit crown, 10000 ppm, and tree spraying, 5000 ppm) were tested in the gardens of Garmsar region, during 2017. The research was conducted in a randomized complete block design with 7 treatments and 4 replications. Three times the application was carried out at intervals of 6 weeks and the infected fruits were counted during the season and at harvest time, and the infection rate and repellency of the treatments were calculated. Based on the field studies, The highest and the lowest infection rate were in control treatment (13.2%) and tree spraying with distilled wood vinegar treatment (1%), respectively. Also, the repellency of PFM in tree spraying with distilled wood vinegar, typical wood vinegar and liquid smoke treatments were 85.9%, 75.1% and 59.8%, respectively, and in the fruits crown spraying with distilled wood vinegar, typical wood vinegar and liquid smoke were 76.1%, 66.2% and 48.6%, respectively. Therefore, according to the results, wood vinegar can be effective for reducing PFM damage.