%0 Journal Article %T Evaluaci¨®n del insecticida thiamethoxam 25% para el manejo del insecto sogata en el cultivo de arroz en calabozo, estado Gu¨¢rico, Venezuela %A Vivas %A Luis E %A Astudillo %A Dilcia %A Campos %A Luis %J Agronom¨ªa Tropical %D 2009 %I Scientific Electronic Library Online %X studies were carried out in rice fields located at the r¨ªo gu¨¢rico irrigation system (r.g.i.s.) and within the gu¨¢rico experimental station in calabozo, venezuela since 2003 to 2006. the goal was to evaluate the degree of effectiveness of 3 doses of the insecticide thiame-thoxan and the commercial products ethophenprox 10.9% ec and monocrotophos 600 sl to control tagosodes orizicolus muir (1926) (homoptera: delphacidae). in total there were 6 treatments in a factorial experiment completely random design with four replications to determine the degree of effectiveness using a formulation from abbot's corrected. we found that the thiamethoxan 25% (100 i.a and 75 g ha-1), had an effectiveness over 77%, and was the best of the evaluated treatments. we also shown the information of the commercial test of the insecticide (thiamethoxan 25%) with the commercial dose of 100 g ha-1, for con-trol of the sogata insect, in the farm 590 and 15 (inia) of r.g.i.s in calabozo miranda county. the evaluations were made at the 24 hours, and 7 and 14 days after applied the product, and we found an average of 82% of control of sogata planthopper in both farms. we also described the methodology and forms to evaluate the sogata insect under field conditions in rice agrosystems. %K oryza sativa %K rice %K chemical control %K management of insects %K sogata planthopper %K tagosodes orizicolus muir. %U http://www.scielo.org.ve/scielo.php?script=sci_abstract&pid=S0002-192X2009000100009&lng=en&nrm=iso&tlng=en