Author

• M. Morovati

Abstract

The experiments were conducted in two phases under laboratory and field conditions. Laboratory tests were performed in 5 treatments under Choice and No-choice feeding conditions.
In the single-dose experiments N. indica consumed on an average 17.17±1.9 gm/animal Baraki-wax block, 16.2±3.9 gm/animal Baraki-pellet and 16.7±2 gm/animal Lanirat. Food preference results in N. indica were determined as 33.04% (carrot), 25.65% (Baraki-Wax block), 24.92% (Lanirat) and 16.33% (Baraki-Pellet).
Toxicity symptoms like nose and anal bleeding was observed from the 4^th day and 100% mortality was observed from the 6^th day until the 10^th day after initiation of the experiment.
In the second phase, the experiments in the field were performed using completely randomized block design in four replicates with three experimental and one control blocks. 20 gm/complex burrow of Baraki (Pellet), wax block and Lanirat were used in the three experimental blocks respectively and the fourth block was kept as control without application of any rodenticide. The percentage of success was determined using Henderson and Tilton (1955) formula. Percent success observed in N. indica by Baraki wax block and pellet was 97.75% and 97.25% respectively and about 94.75% when Lanirat was used. The LD₅₀ value of Difethialone for N. indica was estimated as 0.82 mg/kg BW.

Keywords

• Anticoagulants
• Baraki
• Difethialone
• Bromadialone
• Nesokia indica
• Rodenticide