The efficacy of kaolin clay on the pomegranate fruit moth, Ectomyelois ceratoniae (Lep.: Pyralidae), and fruit sunburn in pomegranate orchards
2014
Sirjani, M., Khorasan Razavi Agricultural and Natural Resources Research Center
Sunburn of pomegranate fruits and Pomegranate Fruit Moth (PFM), Ectomyelois ceratoniae (Lep.: Pyralidae), is the most important of harmful agents in Iran and other pomegranate producing countries to reduce the quantity and quality of product. Several different methods including collecting and burning of infested fruits, mechanical and biological control have been examined to control PFM, but none of the method has showed to sunborne control. Application of the kaolin particle film might be an alternative for control of sunborne and PFM. To assess the impact of kaolin, trials were conducted in the fields during 2011-2012 year. The different concentrations of kaolin clay (Sepidan® WP) (3 - 6%) were sprayed over the whole canopy and fruits three and four times at 4–5-week intervals from early May to early September. Based on the field studies, in 3 and 6% kaolin treatments, were reduced the infection rates of PFM damage and Sunburn of fruits. Also the result showed that, the fruit cracking was reduced in kaolin treatments. Therefore, kaolin (Sepidan® WP) spray over the whole canopy of pomegranate trees, (5% concentration), could be used successfully to reduce sunborne and PFM damage on pomegranate.
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