Reduction in population of Indian desert rodents with anticoagulant rodenticides

Abstract

Brodifacoum, chlorophacinone and coumatetralyl treated pearl millet (Pennisetwn typhoides) grains were tested in a desert scrub grassland to evaluate the comparative field efficacy of these three anticoagulant rodenticides. Baits were placed for 10 consecutive days in bait stations in 18 plots of one hectare each in a randomized block design. Per cent reduction in rodent population was caIcu1ated by pre arid post-treatment active burrow counts, census baiting and live trapping. Results revealed that brodifacoum is significantly more effective than other two anticoagulants. However, analysis of variance revealed significant difference in the estimation of per cent reduction in the rodent population caJculated by three methods, the possible reasons for which are also discussed.

Efficacy of Management and Monitoring Methods to Prevent Post-Harvest Losses Caused by Rodents

“…Although pest rodent presence is considered a problem across many rural farming communities (e.g., by damaging clothes, blankets, transmitting disease, eating and contaminating stored rice), rodent management is usually applied too late [ 18 , 19 ]. Rodent control is mostly practised once damage to crops or stored produce becomes visible [ 12 , 20 ], whilst rodent control in rural Asian environments relies mainly on the use of rodenticides [ 6 , 21 ]. Other management methods which can be applied are trapping, habitat management (e.g., proofing, sanitation), and biocontrol (e.g., wild or domestic predators, rodent pathogens) [ 18 , 22 ].…”

The need to implement the landscape of fear within rodent pest management strategies

“…Until the late 1980s, their efficacy and relative safety certainly contributed to the stifling of other research avenues, such as developing more ecologically sound methods of rodent management . Rodent control practices in agricultural environments are still mostly based on the use of rodenticides . However, incorrect application of such chemicals fast tracks the development of rodenticide resistance (reported from 1966 onwards for several rodent species) and increases the risk of both primary and secondary exposure of predators …”

Rodent-borne health risks in farming systems

“…(Hadler & Buckle, 1992) Rodent control practices in agricultural environments are still mostly based on the use of rodenticides. (Arora, Srivastava, & Pandey, 1984;John, 2014;Mathur & Prakash, 1984;Parshad & Malhi, 1995) However, incorrect application of such chemicals fast tracks the development of rodenticide resistance (reported from 1966 onwards for several rodent species) and increases the risk of both primary and exposure of predators. (Jackson & Kaukeinen, 1972) State of the art of EBRM use on pest rodents…”

“…by damaging clothes, blankets, eating and contaminating stored rice), rodent management is usually applied too late (Aplin, K., Brown, Singleton, Douangboupha, & Khamphoukheo, 2006;Brown, P. R. et al, 2008). Rodent control is mostly practised once damage to crops or stored produce becomes visible (Belmain, Steven R. et al, 2006;John, 2014), whilst rodent control in rural Asian environments relies mainly on the use of rodenticides (Mathur & Prakash, 1984;Parshad, 1999). Other management methods which can be applied are trapping, habitat management (e.g.…”