An Investigation on the Effects of Dioctyl Sodium Sulfosuccinate on Efficiency Increment of hexythiazox (EC 10%) to Control Spider Mite, Tetranychus urticae Koch, in Cucumber
Various factors may lead to pesticide efficiency increment, and adjuvant may be considered as the most important one. Spider mite, Tetranychus urticae, is a key pest in greenhouse especially on cucumber. Its damage and control measures involve high expenses annually. This research was conducted to study the effect of Dioctyl Sodium Sulfosuccinate as an adjuvant, dispersing and wetting agent, to evaluate the effects of hexythiazox (Nisoron® EC 10%) on T. urticae in greenhouses of Chah Akrami and Ashkezar, in Yazd province during the years 2013 and 2014. This experiment was performed based on randomized complete block design under greenhouse condition with 5 treatments including hexythiazox with recommended dosage (100ml/100L) as control, hexythiazox (5% dosage reduction)ǘꧭ, hexythiazox 10% dosage reduction) Adjuvant, hexythiazox (15% dosage reduction) Adjuvant and hexythiazox 20% dosage reduction) Adjuvant. Dioctyl Sodium Sulfosuccinate (Adjuvant) was used with recommended dosage (75 ml/100 L). Sampling was done after 1, 2, 3, 7, 10, 15 and 21 days after spraying. hexythiazox treatment as control showed significantly more efficiency at the initial sampling intervals (95.93±0.8; 97±0.57 in Chah Akrami and Ashkezar respectively), but dropped over time. According to the present results Dioctyl Sodium Sulfosuccinate application showed significant effects on efficiency increment (25% compared to recommended dosage of hexythiazox after 15 days), dosage reduction (15%) and duration of hexythiazox efficiency.
Journal of Pesticide in Plant Protection Sciences, Volume:2 Issue: 2, 2016
133 to 142  
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