World Journal of Agricultural Research
ISSN (Print): 2333-0643 ISSN (Online): 2333-0678 Website: http://www.sciepub.com/journal/wjar Editor-in-chief: Rener Luciano de Souza Ferraz
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World Journal of Agricultural Research. 2014, 2(2), 63-69
DOI: 10.12691/wjar-2-2-6
Open AccessArticle

Efficacy of Traditional and Improved Granaries in Protecting Maize from Prostephanus truncatus in Small Holder Farming Storage System in Makonde District, Zimbabwe

Mhiko Tinotenda Admire1, and Shokora Tinashe2

1Genetics, Crop Production and Crop Protection, Peoples’ Friendship University of Russia, Moscow, Russia

2Food Science and Post Harvest Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe

Pub. Date: March 24, 2014

Cite this paper:
Mhiko Tinotenda Admire and Shokora Tinashe. Efficacy of Traditional and Improved Granaries in Protecting Maize from Prostephanus truncatus in Small Holder Farming Storage System in Makonde District, Zimbabwe. World Journal of Agricultural Research. 2014; 2(2):63-69. doi: 10.12691/wjar-2-2-6

Abstract

The study was carried out in Makonde District, located 17°21' S and 30°12' E in Mashonaland West Province to assess the efficiency of improved and traditional granaries in protecting traditional and hybrid maize from Prostephanus truncatus. Ten farmers were randomly selected from 20 wards in the District. Multistage cluster sampling and purposive sampling techniques were used. Amongst the 10 selected farmers, 5 were using traditional granaries and the other 5 were using improved granaries. Four farmers used in the study stored a traditional maize variety (Hickory King) and six farmers stored a hybrid variety (SC 513). Demographic data on the farmers was captured on a questionnaire which was conducted at the beginning of the study. The questionnaire had information on type of storage granary, age of farmers, type of stored maize variety, amount of maize stored, major prevalent pests and grain management practices. Hybrid and traditional maize varieties stored in selected improved and traditional granaries. The maize varieties were first fumigated for a week using phosphine tablets and granaries were first disinfected using Deltamethrin (2.4% w.p) at 1.5g/l water at 20ml/m2. Fumigated traditional and hybrid maize were then stored in disinfected granaries. Maize grains were stored for 6 months. Traditional, intermediate traditional, intermediate improved, improved granaries had 36%, 16%, 30% and 18% utilization amongst farmers respectively. Age of farmers showed a significant influence on the type of granary used to store their grain. Sitophilus zeamais, Prostephanus truncatus, Sitotroga cereallela were most prevalent insect species. The relative abundance of these pests in the granaries was 100%, 70% and 85% respectively. Hybrid maize (SC 513) was re-infested with Prostephanus truncatus after 3 months during storage in traditional granaries. The relative abundance of pests in a granary was influenced by the farmer duration of storage and the treatment. It was concluded that traditional granaries used by farmers were found to be prone to Prostephanus truncatus infestation as compared to improved granaries. There was a significant difference in the variations between granary type, maize variety and levels of Prostephanus truncatus infestation.

Keywords:
Sitophilus zeamais Prostephanus truncatus Sitotroga cereallela Makonde DistrictGranary

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