Using Bacillus truringiensis var. Kurstaki in controlling larvae Helicoverpa viriplaca Den in Kermanshah province
2010
Jalilian, F., Agricultural Research Center of Kermanshah, Iran | Sheikholaslami, M., Agricultural Research Center of Kermanshah, Iran | Moeeny Naghadeh, N., Department of Plant Protection, College of Agriculture, Razi University of Kermansha, Iran | Mahjoob, S. M., Agricultural Research Center of Kermanshah, Iran | Tohidi, M. T., Agricultural Research Center of Kermanshah, Iran
The most important pests in Kermanshah province have a larvae of species H. viriplaca Den. Percent of the pest damage severe in some years and the amount of product to reduce the intensity. In controlling the use of chemical compounds is inevitable. In addition to the performance of pesticides, biological compounds, bacteria B. t var. Kurstaki on this pest has been proven that a different trade name supplied. The use of compounds such as henna powder with B. t as resonator and create higher efficiency caused severe losses to pests. To promote the use of environmentally friendly products in the central area of 3 hectares of a farm deaf Byvnj figure was seeded. All stages of land preparation, planting, and was based on customs area was conducted. In this experiment the treatments were at level 3 ha were: 1 - spray with a biological compound made in B. T. than 3 ha, with 1 kg of henna powder 2 - spray with poison Carbaryl 85% rate 3 kg ha-3 - control without spraying 1 hectare each level. A participatory evaluation with farmers on the larval mortality rate, the number of healthy and infected pods, 100 seed weight and yield was performed. Data obtained using MINITAB statistical software were analyzed. The results showed that the mortality rate calculated from the parameters of larvae, the number of healthy and infected pods and yield difference between the 3 treatments was significant, but 100 seed weight difference was not significant. Overall efficiency of the biological material not less than poison Carbaryl found. Because use of these compounds toward integrated pest management IPM and the need of destructive toxins and reduces expensive. Therefore, the present economic conditions for farmers and more cost-effective use of these compounds is available and advisable.
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