Measuring larval nematode contamination on cattle pastures: Comparing two herbage sampling methods.

•Comparison of two herbage sampling methods to measure pasture larval contamination.•Methods are compared in terms of larval count results and time required to sample.•Assessment of the main sources of variation in the pasture larval counts.•Simulation of sample size requirements for measuring larval contamination.•A new, less time consuming sampling method is proposed as future sampling approach.