[01] Muhammad Sarwar, Nuclear Institute for Agriculture & Biology (NIAB), Faisalabad, Punjab, Pakistan.

Rodents principally rats and mice are some of the most bothersome and damaging creatures in the world. Almost every type of food commodity is subjected to rodents attack and losses to cereals are serious problem experienced throughout the sphere. Significantly rodents may affect rice crop production and rodenticides are likely to remain the essential management tool for controlling their damage in the field. This paper reports the results of the field studies to identify and quantify the species complex, damage pattern and efficiency of rodenticides in controlling rodents attacking rice (Oryza sativa L.), fields. The replicated trial was arranged according to randomized complete block design, and the samples for rodent species, preference for poison baits and comparative effectiveness of rodenticides in reducing pest populations and damage were taken before, during and after control operation was applied. Present results revealed that a guild of four rodent species viz., the lesser bandicoot rat (Bandicota bengalensis Gray), the metad (Millardia meltada Gray), the short tailed mole rat (Nesokia indica Gray), and the house mouse (Mus musculus L.) was observed damaging in the rice fields. However, the bandicoot rat (B. bengalensis) was found to be the primary and the most dominant species among the other rodent pests, which was responsible for inflicting severe damage to paddy throughout the rice growing season. Out of two tested rodenticides; Brodifacoum (single dose anticoagulant) was proved more efficient than Warfarin (multiple dose anticoagulant) for rodents management. When compared with additive poison baits, it was found that mixture of Brodifacoum plus egg was preferred by rodents over the other combinations and found most effective to achieve a successful control of these economically important agricultural vertebrate pests. For preventing losses from rodents feeding, growers should also implement a sound integrated pest management (IPM) program in their field crops.

Rodent, Rodenticides, Poison Baits Preference, Rice, Oryza sativa

[01] Ahmad, E., Hussain, I. and Brooks, J.E. 1995. Losses of stored food due to rats at grain markets in Pakistan. Int. Biodet. Biodeg., 125-133. [02] Akbar, A., Sarwar, M., Ahmad, N. and Tofique, M. 2005. Evaluation of Different Granular Insecticides for the Suppression of Rice Stem Borers. Proce. 25th Pakistan Conger. of Zoology, March 1-3, SAU, Tandojam. 25: 49-55. [03] Asif, M.M., Brooks, J.E. and Ahmad, E. 1992. The diet of the lesser bandicoot rat, Bandicoota bengalensis, in wheat and rice crops in Central Punjab, Pakistan. Pakistan J. Zool., 24: 119-121. [04] Chakraborty, S. 1977. Field observation on the biology and ecology of the lasser bandicoot rar, Bandicoota bengalensis, in West Bangal. All India Rodent Seminar, Ahmadabad, Sep. 23-26, 1975. p. 102-109. [05] Fulk, G.W. and Akhtar, M.T. 1981. An investigation of rodent damage and yield reduction in rice. Trop. Pest Management, 27(1): 116-120. [06] Greaves, J.H., Fuld, G.W. and Khan, A.A. 1975. Preliminary investigations of the rice rat problem in Lower Sindh. Proc. All India Rodent Seminar, Ahmadabad, Sep. 23-26 1975. p. 1-5. [07] Hussan, . and Iqbal, M.A. 2002. Occurrence of rodent filth in grain commodities sampled from ration shops, Rawalpindi. Pakistan J. Zool., 26: 239-122. [08] Hussan I, Ahmad M and Brooks JE 1994. Effect of seasonal variations in diet and climatic factors on reproduction of the bandicoot rat, Bandicoota bengalensis. Pakistan J. Zool., 26: 119-126. [09] Islam, Z. and Hossain, M.M. 2003. Control of rats at the ripening stage of a rice crop. IRRN 28.1. 49-50. [10] Khan, A.A. and Beg, M.A. 1984. Repoduction and structure of a Bandicoota bengalensis population in agroecosystem. Pakistan J. Agric. Sci., 21: 49-60. [11] Lathiya, S.B. 1990. Food habits of Bandicoota bengalensis in a rice field of Southern Sindh. Pakistan J. Zool., 22: 301-303. [12] Lund, M. 2008. Rodent behaviour in relation to baiting techniques. EPPO Bull., 18: 185-193. [13] Mathur, R.P. and Parakash, I. 1981. Evaluation of brodifacoum against T. indica, M. hurrianae and R. rattus. J. Hyg. Camb., 87: 179-184. [14] Naeem, M., Ahmed, I., Hussain, I. and Ahmedani, M.S. 2011. Performance of taste enhancers mixed with cereal bases and evaluation of the most preferred bait composition for Bandicota bengalensis (Gray). African Journal of Biotechnology, 10 (19): 3938-3944. [15] Parasad, V.P., Ahmed, N. and Chopra, G. 1981. Laboratory and field evaluation of brodifacoum for rodent control. Int. Biodeter, 21: 107-112. [16] Pervez, A., Ahmed, S.M. and Rizivi, S.W.A. 2003. Evaluation of some additives to improve poison bait acceptance in the bandicoot rat, Bandicoota bengalensis. Pak. J. Zool., 35 (2): 109-113. [17] Roberts, T.J. 1981. Handbook of vertebrate pest control in Pakistan. Compiled by vertebrate pest control, Karachi. p.216. [18] Sarwar, M. 2011. Effects of Zinc fertilizer application on the incidence of rice stem borers (Scirpophaga species) (Lepidoptera: Pyralidae) in rice (Oryza sativa L.) crop. Journal of Cereals and Oilseeds, 2 (5): 61-65. [19] Sarwar, M. 2012 a. Effects of potassium fertilization on population build up of rice stem borers (lepidopteron pests) and rice (Oryza sativa L.) yield. Journal of Cereals and Oilseeds, 3 (1): 6-9. [20] Sarwar, M. 2012 b. Management of aromatic rice (Oryza sativa L.) genotypes using varietal resistance against the prevalence of rice stems borers. International Journal of Agronomy and Plant Production, 3 (8): 295-299. [21] Sarwar, M. 2012 c. Management of rice stem borers (Lepidoptera: Pyralidae) through host plant resistance in early, medium and late plantings of rice (Oryza sativa L.). Journal of Cereals and Oilseeds, 3 (1): 10-14. [22] Sarwar, M. 2012 d. Study on the non aromatic rice (Oryza sativa L.) varietals resistance to rice stem borers (Lepidoptera: Pyralidae) and yield factors. International Journal of Agronomy and Plant Production, 3 (5): 159-163. [23] Sarwar, M. 2013. Valuation of Some Aromatic Rice (Oryza sativa L.) Genetic Materials to Achieve Tolerant Resources for Rice Stem Borers (Lepidoptera: Pyralidae). International Journal of Scientific Research in Environmental Sciences, 1 (10): 285-290. [24] Sarwar, M. 2014. Implementation of Integrated Pest Management Tactics in Rice (Oryza sativa L.) for Controlling of Rice Stem Borers (Insecta: Lepidoptera). Rice Plus Magazine, 6 (1): 4-5. [25] Sarwar, M. 2015 a. Species Diversity, Seasonal Variation and Abundance of Rodents (Mammalia: Rodentia) Along With Their Burrow Distribution Pattern in Wheat Farmland. Journal of Basic and Applied Research International, 5 (1): 48-55. [26] Sarwar, M. 2015 b. Pattern of Damage by Rodent (Rodentia: Muridae) Pests in Wheat in Conjunction with Their Comparative Densities throughout Growth Phase of Crop. International Journal of Scientific Research in Environmental Sciences, 3 (4): 159-166. [27] Sarwar, M. and Hamza, A. 2013. Adoption of Integrated Pest Management Strategy in Rice (Oryza sativa L.). Rice Plus Magazine, 5 (9): 6-7. [28] Sarwar, M., Ali, A., Ahmad, N. and Tofique, M. 2005. Expediency of Different Botanical Products Intended for Managing the Population of Rice Stem Borers. Proce. 25th Pakistan Conger. of Zoology, March 1-3, Sindh Agriculture University, Tandojam. 25: 15-23. [29] Sarwar, M., Akbar, A., Ahmad, N., Khan, G.Z., Bux, M. and Tofique, M. 2007. Field Performance of Systemic Foliar and Granular Insecticides against Rice Stem Borers (Scirpophaga spp.) in Rice Crop. Proce. 26th Pakistan Conger. of Zoology, Multan, March 1-3. 27: 89-94. [30] Sarwar, M., Ashfaq, M. and Baig, M.Y. 2011. The Species Complex, Damage Pattern and Control of Rodents (Mammalia: Rodentia) in Sugarcane (Saccharum officinarum L.) Fields. Intl. J. Agron. Plant. Prod., 2 (4): 145-150. [31] Sarwar, M., Ahmad, N., Nasrullah and Tofique, M. 2010. Tolerance of different rice genotypes (Oryza sativa L.) against the infestation of rice stem borers under natural field conditions. The Nucleus, 47 (3): 253-259. [32] Sayaboc, P.D., Caliboso, F.M., Bengino, E.A. and Hilario, J.M. 1984. Rodents losses in commercial grain storage. In: 7th Ann. Work. Grain Postharvest Technology, Aug. 21-24, Kuala Lumpur, 27 p. [33] Shafi, M.M., Pervez, A., Ahmed, S. and Ahmed, S.M. 1993. Some approaches to enhance poison bait acceptance in the lesser bandicoot rats, Bandicoota Bengalensis. Trop. Sci., 33: 350-358. [34] Shahnaz, A.R., Naureen, R., Zafar, M. and Farhan, S. 2006. Seasonal Demographic Variation in Bandicoot Rats, Bandicota Bengalensis (Gray) in Irrigated Crops. Pak. J. Agric. Sci., 43 (1-2): 63-68. [35] Sidra, M., Khan, A.A. and Awan, M.S. 2011. Burrowing Characteristics and Food Hoarding Behaviour of Bandicota bengalensis wardi Wroughton in Wheat Fields, Muzaffarabad, Azad Jammu & Kashmir, Pakistan. Pakistan J. Zool., 43 (5): 987-992. [36] Wagle, P.V. 1927. The rice rates of Lower Sindh and their control. J. Bomby Nat. Hist. Soc., 32: 330-338. [37] Workneh, G., Afework, B., Gurja, B. and Balakrishnan, M. 2004. Microhabitat choice and diet of rodents in Maynugus irrigation field, northern Ethiopia. Afr. J. Ecol., 42: 315-321.