Document Type : Research Paper
Authors
1 Former MSc Student, Department of Plant Protection, Kashmar University of Science and Culture, Iran
2 Assistant Professor of Department of Plant Protection, ACECR -Khorasan Razavi, Kashmar Higher Education Institute, Kashmar, Iran
3 Msc Department of Plant Protection , ACECR_Khorasan Razavi Branch, Kashmar, Iran
4 Assistant Professor of Plant Production Department, and Researcher of Saffron Institute, University of Torbat Heydarieh
Abstract
According to the export of saffron (Crocus sativus.L) and superiority of organic products in the market, this study performed in order to assessment natural methods in control of saffron mite which is a major pest of saffron, was conducted in the saffron institute of Torbat university in 2014. In this research has been studied effect of Bromopropylate and Propargite acaricides and Rosemary essential oil and Stinking assa resin on development steps of Rhizoglyphus robbini in four doases and six different times the peresence of acaricide (3, 6, 12,24,48,72 hours) in the factorial on complete randomized design and four replications. The laboratory condition was determined at photoperiod 16:8, humidity 65 ± 5 percentage and temperature 27 ± 2°C. Analysis results of data variance showed that the effects of treatments on mortality of egg ،larvae and mature mites were significant at the 1 percentage probability level. Also that Bromopropylate has maximum mortality percent among larvae and mature saffron mite. Also in this experiment time increasing and concentration increase mortality of larvae’s significantly. As well as the maximum percent of eggs failed to hatch related to Rosemary essential oil .Also larvae mortality percent was more than mature mite that had significant differences at 5% probability level .In this study was found Stinking assa resin has the greatest impact on the egg also Propargite and Bromopropilate have created the highest mortality on the larvae and adults respectively.
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