Studies on food preferences of maize weevil, Sitophilus zeamais Mots. to different crops in Chitwan, Nepal

  • Sheela Devi Sharma National Maize Research Program, Rampur, Chitwan
  • Resham Bahadur Thapa Agriculture and Forestry University, Rampur, Chitwan
  • Gopal Bahadur KC Tribhubhan University, IAAS, Rampur, Chitwan
  • Ghanashyam Bhandari National Maize Research Program, Rampur
  • Sundar Tiwari Agriculture and Forestry University, Rampur, Chitwan
Keywords: Food, maize, preference, weevil

Abstract

Food preference by the maize weevil, Sitophilus zeamais Motschulsky was studied on seven different crops and varieties including maize, wheat and rice. They were maize cultivars namely Arun-2, Manakamana-4, Deuti, buckwheat local cultivar, wheat cultivar namely Annapurna-1, polished rice-Radha 4 and unshelled rice cultivar Mansuli under storage condition at  Institute of Agriculture and Animal Science, Rampur, Chitwan, Nepal from June 2013 to February 2014 . The hosts were tested using completely randomized design with three replications and were laid in free-choice and no-choice conditions. The maximum number of grain loss was recorded in wheat followed by polished rice respectively. Similarly, the highest weight loss was recorded in polished rice followed by Wheat in both conditions. F1 progeny emergence of weevil was highest in wheat followed by polished rice in free-choice and in no choice conditions, the highest progeny were emerged from polished rice followed by wheat. The lowest numbers of weevils emerged from rice in both conditions. Maximum germination losses were recorded in wheat (24.33%) and lowest in Arun-2 (9.67). The rice showed a relatively higher preference to maize weevil under storage condition.

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Abstract
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PDF
335
Published
2016-12-23
How to Cite
Sharma, S., Thapa, R., KC, G., Bhandari, G., & Tiwari, S. (2016). Studies on food preferences of maize weevil, Sitophilus zeamais Mots. to different crops in Chitwan, Nepal. Journal of Maize Research and Development, 2(1), 58-65. https://doi.org/10.3126/jmrd.v2i1.16215
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Articles