Influence of Agro-ecologies, Traditional Storage Containers and Major Insect Pests on Stored Maize (Zea mays L.) in Selected Woredas of Jimma Zone

Dubale, Bekele Tesfaye; Waktole, S.; Solomon, A.; Geremew, Bizuayehu; Sethu, M. R.

doi:10.3923/ajps.2012.226.234

Cited by 27 publications

(15 citation statements)

References 4 publications

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“…According to a study conducted in Ethiopia, as the storage period proceeds, the percentage of damaged kernels increased from 2.50% to 20.92% in six months and 2.58% to 19.92% in four months in a traditional structure (gombisa) and bags, respectively. 15 The validation study also confirmed that storage structures without PVC bags exhibited more than 47% damage after six months of storage (Table 3) which is even lower than that was reported (64.5%) by Sori and Ayana. 3 Weight loss of grains was also associated with the number of live weevils and percentage of damage as indicated above.…”

Section: Number Of Live Weevils Insect-damaged Grains and Weight Losssupporting

confidence: 73%

Low‐cost modified‐atmosphere hermetic storage structures to reduce storage losses of maize (Zea mays L.) cobs and sorghum (Sorghum bicolor L.) heads

2019

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BACKGROUND: Production and marketing of cereal grains are some of the main activities in developing countries to ensure food security. However, the food gap is complicated further by high postharvest loss of grains during storage. This study aimed to compare low-cost modified-atmosphere hermetic storage structures with traditional practice to minimize quantitative and qualitative losses of grains during storage. The study was conducted in two phases: in the first phase, seven hermetic storage structures with or without smoke infusion were compared, and one selected structure was further validated at scaled-up capacity in the second phase. RESULTS: Grains stored in PVC bag-supported structures (with or without smoke infusion) resulted in low live weevil population, low percentage of damaged grains and reduced weight loss with better retention of crude protein and fat contents. Results fromvalidation study also demonstrated that maize and sorghum stored in improved storage structures experienced, respectively, 9.8% and 10.4% weevil damage as compared with 47.3% and 42.3% when stored in traditional storage structures. The same was true in terms of crude protein and fat contents. CONCLUSIONS:The study demonstrated that storage structures supported with PVC bags are efficient and low-cost structures for reducing storage-related losses and supporting food security efforts as compared to traditional methods. Furthermore, the bags can be made locally and with various storage capacities to store either shelled or unshelled products. /jsfa * Means within a column followed by the same letter(s) are not significantly different at P < 0.05%.

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Section: Number Of Live Weevils Insect-damaged Grains and Weight Losssupporting

confidence: 73%

Low‐cost modified‐atmosphere hermetic storage structures to reduce storage losses of maize (Zea mays L.) cobs and sorghum (Sorghum bicolor L.) heads

2019

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“…e surrounding relative humidity fluctuated between 56.8 and 88% from the start to the end of the experiment, and this could be the possible cause for moisture fluctuation. Dubale et al [31] observed similar moisture content variation (decrease and abrupt increment) in maize grains stored in Gombisa and Sacks.…”

Section: Weight Loss (%)mentioning

confidence: 69%

On Farm Evaluation of Eucalyptus globulus Labill Leaf and Chenopodium ambrosioides L. Whole Plant Powder against Storage Insect Pests in Stored Maize at Sokoru District in Jimma Zone of Oromia Regional State, Ethiopia

Dufera

Tadesse

Gobena

et al. 2019

Psyche: A Journal of Entomology

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Maize is the second most widely grown cereal and gaining importance as a highly nutritious crop in Ethiopia. However, it is severely destroyed by storage insect pests and needs further research to minimize losses. In line with this, research was initiated to evaluate the efficacy of two botanical plant powders (Eucalyptus globulus Labill leaf and Chenopodium ambrosioides L. whole plant) against storage insect pests of maize grains of two maize varieties (BH-661 and Limu) in polypropylene sacks storage conditions at Jimma Zone, Sokoru district. The plant powders were compared with untreated control, and completely randomized design was used in the experiment with three replications for each treatment. Germination capacity, thousand grain weights, percent of insect damage, and weight loss of the stored grains were evaluated and reported in the range of 69.67–94.33%, 318.7–339.3 g, 3.67–50%, and 0.2843–5.22%, respectively, after five months of storage for grains treated with botanicals. However, germination capacity of 10% and 65.33%, percent insect damage of 80.33% and 48%, and weight loss of 23.53% and 5.89% were observed for BH-661 and Limu varieties, respectively, after five months of storage for untreated control. The result indicated that both tested botanicals were effective in protecting the storage insect pests and maintaining the quality of the grains tested in comparison with control and Chenopodium ambrosioides L. whole plant powder is more effective. Although there was significant protective effect compared to untreated control, their effectiveness was decreased drastically after five and three months of storage for Chenopodium ambrosioides L. whole plant powder and Eucalyptus globulus Labill leaf powder, respectively. It is recommended that further research should be done to check if the increasing rate of application increases protection duration of these botanicals and the toxicity of Chenopodium ambrosioides L. should be further studied to use it as a storage insect protectant of maize grains intended for food purpose.

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“…Tefera et al (2011) observed a rise in grain damage and weight loss due to an increase in densities of storage insects and the duration of the storage period. In earlier studies Dubale et al (2012) observed a rise in densities of maize weevil and Angoumois gelechiid on maize stored in gombisa and sacks over the storage periods. Dubale et al (2012) observed an increase in densities of maize weevil and Angoumois grain moth on maize stored in gombisa and sacks over the storage periods.…”

Section: Discussionmentioning

confidence: 86%

“…In earlier studies Dubale et al (2012) observed a rise in densities of maize weevil and Angoumois gelechiid on maize stored in gombisa and sacks over the storage periods. Dubale et al (2012) observed an increase in densities of maize weevil and Angoumois grain moth on maize stored in gombisa and sacks over the storage periods.…”

Section: Discussionmentioning

confidence: 86%

Assessing Storage Insect Pests and Faecal dropping of Rodent in Stored Grains in two districts of Southwestern Ethiopia

Tadesse

Ali

2021

Preprint

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This study was designed to assess major insects and occurrence of rodent infestation in stored grain in two districts of south western Ethiopia. Omo Neda and Bako Tibe districts were purposively selected supported their potential growing of maize and sorghum grain, and high postharvest losses in these selected areas. A total of 160 farmers’ stores from both districts were randomly selected. The grain samples used in the present study were stored for 5 different time periods, ranging from 1 to 5 months and from the same farmers’ stores, to identify storage insect pest and to determine grain weight loss and insect damage. The results showed that the dominant insect species in maize and sorghum grains were weevils (Sitophilus spp.) followed by the Angoumois gelechiid (Sitotroga cerealella Olivier) and flour beetles (Tribolium spp.). High numbers of insects were recorded from both plastered and un-plastered gombisa and polypropylene bags. Additionally, the amount of every insect pest in each storage container recorded per 100 g grain increased because the duration of grain storage increased. There have been 0.33–1.29 and 0.44-1g droppings per 100-g sample of maize and sorghum grain, respectively. Grain damage showed significant differences over the storage periods across the study districts. A similar trend was observed for weight loss for each of the grains in all districts. These results indicated that farmers are incurring a substantial grain loss to insects and rodent pests. Hence, there is an urgent need to devise appropriate tactics for protecting the losses in farm-stored maize and sorghum in Ethiopia.

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Influence of Agro-ecologies, Traditional Storage Containers and Major Insect Pests on Stored Maize (Zea mays L.) in Selected Woredas of Jimma Zone

Cited by 27 publications

References 4 publications

Low‐cost modified‐atmosphere hermetic storage structures to reduce storage losses of maize (Zea mays L.) cobs and sorghum (Sorghum bicolor L.) heads

Low‐cost modified‐atmosphere hermetic storage structures to reduce storage losses of maize (Zea mays L.) cobs and sorghum (Sorghum bicolor L.) heads

On Farm Evaluation of Eucalyptus globulus Labill Leaf and Chenopodium ambrosioides L. Whole Plant Powder against Storage Insect Pests in Stored Maize at Sokoru District in Jimma Zone of Oromia Regional State, Ethiopia

Assessing Storage Insect Pests and Faecal dropping of Rodent in Stored Grains in two districts of Southwestern Ethiopia

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