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| Evaluation on the Effect of 50 % Cyromazine SP on Controlling Kidney Bean Liriomyza sativae |
| XU Bao-yun1,CHANG Xiao-li1,WANG Ran2,ZHU Guo-ren1,ZHANG You-jun1 |
| 1Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China;2College of Plant Protection,Nanjing Agricultural University,Nanjing 210095,Jiangsu,China |
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Abstract The efficacy of 50 % cyromazine SP to Liriomyza sativae in the kidney bean field were investigated in 2007 and 2008.The results showed that control effects of 50 % cyromazine SP were 85.34 %-88.02 %,91.00 %-92.01 % and 92.59 %-95.06 % 3-10 days after spraying 75.0 g,112.5 g,150.0 g effective insecticide per hectare,respectively.Control effects of 50 % cyromazine WP were 90.01 %-93.71 % 3-10 days after spraying 150.0 g effective insecticide per hectare.There were no significant differences in control effects between high dosage of 50 % cyromazine SP and 50 % cyromazine WP.The results of 2007 and 2008 didn’t find significant differences in control effect,and basically identical with those of four years and eight years ago.It confirmed that 50 % cyromazine SP was excellent for effective control of Liriomyza sativae in the fields.
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Received: 29 August 2008
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