Paper Information

Journal:   JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH   FALL 2006 , Volume 7 , Number 28; Page(s) 109 To 118.
 
Paper:  DEVELOPMENT AND LABORATORY EVALUATION OF A PNEUMATIC COLORADO BEETLE CONTROL MACHINE CONSTRUCTED FOR SMALL POTATO FARMS
 
Author(s):  RESHAD SEDGHI A., RANJBAR I., ABDI S.A.
 
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Abstract: 

The heavy reliance on pesticides to control Colorado beetle (Leptinotarsa desemlineata) has resulted in insecticide resistance and the use of higher dosages of insecticides increased environmental pollution and production costs. In the recent years, the use of pneumatic control systems to dislodge and collect insects from plants have been emerged which were successful comparatively. The major drawback in application of these machines is potato plant damage caused by tractor wheels, thus they don't have appropriate efficiency in small farms. In addition, cost of purchase and application of them is relatively high. This study was conducted to develop and evaluate a pneumatic Colorado beetle control machine with simple structure and low cost which could be used in small farms. The machine has two blowing units that place opposite and offset to each other and settled in two sides of potato plants row. By blowing airstreams from each nozzle, insects dislodged from plants and down into the opposite collecting containers. Air stream was produced by centrifugal pump of an atomizer sprayer. To evaluate the machine, experiments were conducted in the laboratory. Colorado beetle adults and larvae settled on the potato plants were exposed to horizontal airstreams of different velocities ranging from 20 to 40 m/s. Results indicated that in the laboratory conditions, airflow velocity of 40 m/s had the most effect on dislodging of insects from plants and the most collecting rate of adult insects and larvae were 67.5% and 41.25% respectively, obtained at airflow velocity of 35 m/s.

 
Keyword(s): COLORADO BEETLE, PNEUMATIC CONTROL MACHINE, POTATO, SMALL FARMS
 
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