COMPATIBILITY OF USE THE BIO-FORMULATION OF THE FUNGUS Beauveria bassiana (Bals.)Vuill.AND WASHING POWDER ( SOAP ) AND SUMMER OIL IN CONTROL SOME STAGE OF CITRUS MEALYBUG Planococcus citri Risso (Hemiptera :Pseudococcidae ) IN LABORATORY | ||
| journal of kerbala university | ||
| Article 1, Volume 10, Issue 4, December 2014, Pages 226-233 PDF (0 K) | ||
| Abstract | ||
| The laboratory Study on different concentrations of Beauveria bassiana preparations (bio-formulation ) ,Soap and summer oil on the2nd nymphal instar of mealybug P.citri showed that the percentage of cumulative mortality treated with highest concentrations (6g,4g,3ml/L) were reached 46.0, 37.3, 65.7 % respectively. While the percentage were 14.3, 26.7 , 58.7. when the law concentrations ( 4g,2g,2ml /L) were used after 24 days of treatment respectively.However, summer oil used in two concentrations showed significant differences among treatments . The results also show the presence of significant differences between the high and law concentration to each substance was used. The percentage of cumulative mortalitiy of adult treatments with highest conc. ( 6g ,4g ,3ml / L ) were reached 31.0 , 46.7 , 68.0 % respectively. While it was 12.3 , 25.0 , 55.3 % when the law conc.were used after 24 days of treatment respectively .Also the summer oil showed significant differences among the three substances with both conc.When the 2nd nymphal instar and adult treated with mixture of three substances of high conc.were significantly higher than other treatments,where the percentage of cumulative mortalitiy were 91.3, 73.3 % after24days of treatment respectively | ||
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