Occurrence of Stored Grain Pests in Thrissur District, Kerala, India


Published: 2023-03-16

DOI: 10.56557/upjoz/2023/v44i33416

Page: 21-25

J. R. Jipsa *

Sree Narayana College, Kannur, Kerala-India Research, India.

P. Midhun

Kongunadu Arts and Science College, Coimbatore, Tamilnadu, India.

V. A. Sethulakshmi

Sree Narayana College, Nattika, Thrissur, Kerala, India.

*Author to whom correspondence should be addressed.


The aim of this study is not to eliminate all pests. Some pests are tolerable and essential so that their natural enemies remain in the crop. Rather, the aim is to reduce pest populations to less than damaging numbers. Hence the objective of the study is to enumerate the species composition and diversity of the stored grain pests of the study area. In the present study a variety of stored grain insect pests were recorded for 6 months from 2 sites in Thrissur District. For the convenience of the study the period is divided into 2 seasons. The seasonal studies were done and find the species diversity in each season through the survey and statistical analysis. From two seasons 9 species were recorded from both sites of the order Coleopteran and Lepidoptera. Sitophilus oryzae was more abundant in both monsoon and post monsoon season and second abundant species is Tribolium castaneum from Curculionidae and Tenebrionidae families respectively. Apart from Chrysomelidae, cueculionidae, Bostrichidae, Dermestidae and Carabidae were the families recorded of the order Coleoptera. Pyralidae was the only Lepidopteran family recorded during the study.

From the study on diversity of stored grain pests in two sites gives the knowledge of insect diversity in that area. Through the collection and statistical analysis different types of species were recorded from both sites. The breeding season of each species is different, so it is kindly affect their abundance. Although Sitophilus oryzae and Tribolium castaneum are more abundant in both season from both sites. Over all, the study gave  an idea about the insect pest diversity of two sites from Thrissur district and abundance are more in various season during the study periods.

Keywords: Stored grain pest, coleoptera, diversity, pest, season etc

How to Cite

Jipsa, J. R., Midhun, P., & Sethulakshmi, V. A. (2023). Occurrence of Stored Grain Pests in Thrissur District, Kerala, India. UTTAR PRADESH JOURNAL OF ZOOLOGY, 44(3), 21–25. https://doi.org/10.56557/upjoz/2023/v44i33416


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Amruta N, Sarika G, Umesha, Maruthi JB, Basavaraju GV. Effect of botanicals and insecticides seed treatment and containers on seed longevity of black gram under natural ageing conditions. J. App. Nat. Sci. 2015;7(1):328 – 334.

Manohar Lal, Budhi Ram, Prabhat Tiwari. Botanicals to cope stored grain insect pests: a Review. Int. J. Curr. Microbiol. App. Sci. 2017;6(6):1583-1594.

Adugna H, Dangnew G, Biniam Z, Biniam A. On farm storages studies in Eritrea. African Journal of Biotechnology. 2006;5(17):1537-1544.

Dubale B, Setu MR. Influence of agro-ecolog, traditional storage containers and major insect pest on stored maize (Zea mayas. L) in selected words of Jima Zone. Asian Journal of Plant Science. 2012;11:226-234.

Halder J, Pandey MK, Singh N, Rai AB, Singh B. Perceived effectiveness of indigenous technological knowledge (ITK) of insect and vertebrate pests management in eastern Uttar Pradesh, India. Proceedings of the Zoological Society. 2018(b);71(1):9-16. DOI 10.1007/s12595-016-0179-6. Online published on 02/07/2016.

Shaalan EA, Canyon DV, Muller R, Younes MW, Abdul Wahab H, Mansour AH. A mosquito predator survey in Townsville, Australia and Assessment of Diplonichus sp. Anisops sp. predatory capacity against Culex annulirostris mosquito immature. J. Vector. Ecol. 2007;2:32:16-21.

Tadeos Shiferaw. Occurrence of stored grain insect pests in traditional underground pit grain storages of Eastern Ethiopia. Journal of Biology, Agriculture and Healthcare. 2017;7(21):1-4.

Tefera T, Mugo S, Likhayo P. Effect of insect population density and storage time on grain damage and weight loss in maize due to the maize weevil, Sitophiluszeamais and the larger grain borer, Prostephanus truncates. African Journal of Agricultural Research. 2011;6:2249-2254.

Linda J. Mason. Red and confused flour beetles, Tribolium castaneum(Bhst.) and Tribolium confusam duval. E. 2018;224-W.

Barik T, Barik KC, Bakhara CK, Ghosal D. Indigenous agricultural practices and farmers innovations of Bargarh district of Odisha. In: Indigenous agricultural practices farmers’ recent innovations and low-cost techniques of Odisha (Ed. Dr. T. Barik), Dept. Of Agronomy, OUAT, Bhubeneswar, Odisha. 2014;47-64.