: To investigate the efficiency and the possibility of improving of the spraying techniques for controlling the over wintered adult sunn pest (Eurygaster integriceps) under field conditions in wheat farm
2010
Heidari, : Ahmad, Iranian Research Institute of Plant Protection | asgari, Shahriar | Mahjoob, Seied Mahdi | Gerami, Karim | Naghavi, Seied Mohamd | Abdollahi, Gholam Abbas
The chemical control (insecticide usage) is applied routinely for sunn pest. Due to important role of spraying technique on pesticide efficacy and environment hazard, It is very important to select proper sprayer for different fields conditions. For this purpose two wheat field with proper infestation level was selected in Varamin and Kermanshah and sprayed with different sprayers. Spraying solution included deltamethrin (Decis EC 2.5%). The experiment was carried out base on a Randomized complete Block design (RCBD). Treatments included six kind of sprayers: Hydraulic Motorized Sprayer on Trolley, Motorized knapsack mist blowers sprayer, Motorized Knapsack Mist blowers Sprayer with Electrostatic head, Motorized Knapsack Mist blowers Sprayer with micronear head, Lever-Operated Knapsack Sprayer, Knapsack Micronear sprayer, Tractor-Mounted Mist blowers Sprayer and Control Plot( without any spraying). Data analyzed and Obtained means were compared by Duncan method. The result of this research showed that the effects of sprayers are proper and not significant with exception of Tractor-Mounted Mist blowers Sprayer with low efficacy. Insecticide solution usage was 500, 100, 31, 44, 200, 19 and 235 liter per hectare respectively. Spraying area was 0.72, 0.95, 0.75, 0.95, 0.18, 1.62 and 16.8 (hec./ hour) respectively. In summery, the result of this research revealed that Knapsack Micronear sprayer; Knapsack Mist blowers Sprayer with Micronear head, Motorized Knapsack Mist blowers Sprayer with Electrostatic head due to sufficient efficiency and low insecticide solution usage are suitable for applying insecticide to control of sunn pest.
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