Weeds pose a serious menace in guava orchard, and substantially affect the quality and quantity of crop produce. A two-year field experiment was conducted to study the weed dynamics in guava orchard (VNR Bihi) as influenced by drip irrigation (DI₅₀, DI₇₅ and DI₁₀₀) and mulching treatments (silver-black mulch, black mulch, organic mulch and non-mulch). The results indicated that maximum weed density and weed biomass was observed under DI₁₀₀ and minimum was noted in DI₅₀. Mulches exerted significant influence on total weed density and biomass as compared with the unmulched plots. Silver-black and black mulches resulted in complete control of weeds during October and December in both the years. However, Cyperus could penetrate silver-black mulch during March. Moreover, minimum weed biomass was recorded with black mulch, followed by silver-black mulch while maximum weed biomass was found in unmulched plots. Thus, it might be inferred that the use of black mulch along with drip irrigation might help in weed management in guava orchard.