Evaluation of New Insecticide （Proteus 170O - TEQ） for the Control of the Brown Cocoa Mirid （Sahlbergella Singularis） in Nigeria  

作　　者：Evarestus Uche Asogwa Feyisara Abiodun Okelana Idongesit Umanah Mokwunye Joseph Chucks Anikwe Theophilos Chinyere Nkasiobi Ndubuaku 

机构地区：[1]Crop Protection Division, Cocoa Research Institute of Nigeria, Ibadan, Oyo State （234）, Nigeria

出　　处：《Journal of Life Sciences》2011年第5期393-399,共7页生命科学（英文版）

摘　　要：Proteus 170O - TEQ insecticide was subjected through rigorous testing over years （2005 to 2008） at four concentrations 0.15% （9 mls/10L.H20）, 0.31% （18 mls/10L.H2O）, 0.46% （27 mls/10L.H2O） and 0.61% （36 mls/10L.H2O）. Each concentration was replicated three times in the field. The mortality rates of mirids on exposure to the various concentrations of Proteus and Standard miricide in the laboratory were similar at 0.46% concentration as both gave a 100% kill ofmirids at the 40th minute. The first year field mortalities of mirids recorded 24 hours after the initial and residual applications at the Ibadan, Owena and Ikom at 0.46% active ingredient concentration gave 100% kill of mirids. The mortalities of mirids recorded 24 hours after the second year field initial and residual treatments at the lowest concentration of 0.15% active ingredient ranged between 70.2% and 100%. In the third year, the insecticide at 0.31% concentration compared favourably with the Standard. The residues of thiacloprid in the analyzed cocoa bean samples were below the Limit of Quantitation （LOQ） of 0.01 mg/kg. Spraying of mature and fruiting cocoa farms at application rate of 0.46% was found adequate and recommended.

关 键 词：Brown cocoa mirids mortality concentration insecticide （Proteus 170 O - TEQ） spraying. 

分 类 号：S482.3[农业科学—农药学] TS274[农业科学—植物保护]