AYDA HADDADI, SHAHRAM MIRFAKHRAEI* AND SHAHRAM ARAMIDEH
Department of Plant Protection, College of Agriculture, Urmia University of Pardis, Urmia, Iran
*(e-mail : Sh_mirfakhraie@yahoo.com; Mobile : 98-9143419869)
(Received : December 25, 2018; Accepted : March 11, 2019)
ABSTRACT
Grape erineum mite (GEM), Colomerus vitis Pagenstecher, is one of the major pests of grapevine. As this
pest influences the quality and quantity of grape, hence, to control it, applying some practical and
environmental friendly methods were arranged. This research was conducted in a completely randomized
block design in an experimental vineyard in West-Azerbaijan Province, Iran during 2016 to 2017 with 10
treatments including abamectin, volk oil, detergent, abamectin+volk oil+detergent, abamectin+volk oil,
abamectin+detergent, volk oil+detergent, sulfur 3.5 and 4.5% wt. and water (testifier). Abamectin (10 ml/
1000 ml of water, 1.8% EC), volk oil (2.5 l/100 l of water, 80% l), detergent (0.5l/1000 l of water) and
sulfur (3.5 and 4.5%) were applied with the mentioned concentrations. Spraying was done on three dates
(17 March, 30 June and 4 April) and sampling for seven times. Percentage of efficiency was calculated with
Henderson-Tilton formula. According to results, all treatments including abamectin showed e 90% efficacy,
whereas other treatments without abamectin like volk oil and detergent showed 72-88 and 65-86% mortality,
respectively. Sulfur 3.5 and 4.5% wt. in both second and third spraying stages by 43-54 and 47-65%,
respectively, controlled the GEM < 90%. Also the efficiency of all treatments didnt show significant change
by passing of time in all samplings. To control this pest around economic threshold and less adverse
impacts to the nature, applying volk oil (2.5 l/100 l of water) and detergent (0.5l/1000 l of water) in late
winter is advisable.
Key words : Abamectin, control, detergent, sulfur, volk oil