The influence of several latex yield stimulants on dry rubber content (DRC) and cup lump weight in Hevea brasieliensis was studied at Rubber Research Institute of Nigeria, Iyanomo, Benin City. The NIG 805 clone was used for the study which is grown in the clonal garden of the Institute. Four different stimulants namely: Mortex 50, Mortex 25, Vitex and Ethephone were used for the study. The experiment comprised five different treatments (the four stimulants and the control) in three replicates of three trees each, making a total of forty-five trees. The duration of the study was three months and stimulation was done once monthly. The trees were tapped using the ½S, d/2 tapping mode and the latex flow time for each tree was two hours. Data collected include; volume of latex collected two hours after tapping, dry rubber content (DRC) and weight of cup lump. Results were analysed using ANOVA and they showed a significant difference in DRC of the stimulated trees with the control trees having the highest DRC and the Mortex 50 treated trees having the highest cup lump weight. The results are further discussed