Field efficacy of reduced active ingredient zinc phosphide formulation against rodents

A formulation of zinc phosphide with reduced active ingredient (40% concentrate) was evaluated for its rodenticidal activity in wheat, rice and sugarcane crops at farmer fields Punjab, India. Comparison made the existing (80% second generation anticoagulant bromadiolone (0.25% concentrate). Cereal based baits containing different doses new (1.5, 2.0 2.5%) (2%) (0.005%) were applied through burrow baiting where Bandicota bengalensis, Mus booduga, Millardia meltada Tatera indica predominant rodents. The reduction rodent determined on pre- post-treatment bait census. Results revealed that 2% 2.5% formulations are as effective existing/ recommended formulations.