Cooking oils and “Triplex” in the control of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) in farm-stored maize

Demissie, Girma; Teshome, Addis; Abakemal, Demissew; Tadesse, Abraham

doi:10.1016/j.jspr.2007.10.002

Cited by 30 publications

(19 citation statements)

References 7 publications

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“…One hundred percent of all participants surveyed experience PHL of maize mainly by insect infestation. The study also found main losses occurred during storage; this result concurred with previous reports (Rugumamu, 2004;Demissie et al, 2008;FAO, 2011;Abass et al, 2014;Kaminski and Christiaensen, 2014;Affognon et al, 2015) that significant loss of maize grain in developing countries occurs during storage (15-25%). Furthermore, the results showed a noteworthy portion of the population has little or no knowledge of mycotoxin contamination.…”

Section: Discussionsupporting

confidence: 92%

“…These losses are mainly due to storage insect pests, lack of proper storage structures, and poor handling practices (Demissie et al, 2008). The most significant PHL pests to maize in storage are maize weevil (Sitophilus zeamais), larger grain borer (Prostephanus truncates), Angoumois grain moth (Sitotroga cereallella: Olivier) and rodents (Abass et al, 2014;Kaminski and Christiaensen, 2014;Affognon et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Postharvest Practices and Mycotoxins of Maize in Three Agro-Ecological Zones in Tanzania

Suleiman¹,

Rosentrater²,

Chove³

2017

2017 Spokane, Washington July 16 - July 19, 2017

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Maize is a major cereal crop in Tanzania and it is grown in diverse agro-ecological zones. Like other subSaharan countries, postharvest losses of maize during storage in Tanzania remain significantly high, especially for smallholder farmers. Unpredictable weather and poor postharvest practice contribute to rapid deterioration of grain and mold contamination, and subsequent production of mycotoxins. The purpose of this study was to assess the postharvest practices, awareness and knowledge of mycotoxin contamination in maize grain in three agro-ecological zones (Eastern, Central, and Northern) of Tanzania between November 2015 and February 2016. A survey using semi-structured questionnaires was administered to farmers, traders, and consumers of maize. A total of 90 people (30 from each zone) were surveyed with a response rate of was 96% (87). In addition, several samples of maize were collected and analyzed for aflatoxin, fumonisin, and Zearalenone contamination to validate the awareness and knowledge of mycotoxin contamination of maize. The result shows a high level of postharvest losses of maize mainly through insect infestation. Moreover, over 80% of the farmers, traders, and consumers of maize were unaware of mycotoxins contamination. All maize samples collected contained detected levels of mycotoxins. The maximum concentration of aflatoxins, fumonisin, and Zearalenone in maize samples was 19.20 ppb, 7.60 ppm, and 189.90 ppb respectively. Education intervention is necessary to decrease the disconnect observed between actual mycotoxin contamination and the awareness and knowledge of farmers, traders, and consumers of maize in Tanzania. Enhancing awareness and knowledge provide the opportunity to educate on post-harvest practices that reduce postharvest losses and mycotoxin of maize in Tanzania.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Postharvest Practices and Mycotoxins of Maize in Three Agro-Ecological Zones in Tanzania

Suleiman¹,

Rosentrater²,

Chove³

2017

2017 Spokane, Washington July 16 - July 19, 2017

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“…O composto eugenol não foi analisado, sendo utilizado em razão de estudos comprobatórios da atividade inseticida com insetos de grãos armazenados (COITINHO et al, 2006 5mL kg -1 de grãos de milho, ocasionaram, respectivamente, 53,2; 56,4; 58,8 e 67,7% de mortalidade sobre adultos de S. zeamais após sete meses de armazenamento (DEMISSIE et al, 2008).…”

Section: Methodsunclassified

“…Essa informação, em relação à redução da emergência com o prolongamento do período de armazenamento, foi comprovada em pesquisas desenvolvidas por diversos autores (COITINHO et al, 2006;ASAWALAM & HASSANALI, 2006;DEMISSIE et al, 2008). Essa propriedade pode limitar o uso de Tabela 2 -Número (média ± EP) de Sitophilus zeamais emergidos em milho tratado com óleos vegetais, em diferentes concentrações, após a impregnação e aos 30, 60, 90 e 120 dias de armazenamento.…”

Section: Methodsunclassified

Persistência de óleos essenciais em milho armazenado, submetido à infestação de gorgulho do milho

et al. 2010

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“…For maize, the storage loss caused by insect pests was generally estimated to range between 20-30 percent (Tefera et al, 2011), and the weight loss of 3 month storage could be up to 34-40 percent due to larger grain borer (Prostephanus truncates) pests and 10-20 percent due to maize weevil (Sitophilus zeamais) pests (Boxall, 2002). Furthermore, the loss caused by maize weevil (Sitophilus zeamais) during post-harvest storage was 20 percent to 30 percent in Ethiopia while 100 percent damage has been found in maize stored for 6-8 months in the Bako region of this country (Demissie et al, 2008), and 18 percent of stored maize was infected and destroyed by maize weevil in Tanzania (Mulungu et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Laboratory-scale hermetic storage of wheat and maize against the infestation of red flour beetle (Tribalism castaneum) and maize weevil (Sitophilus zeamais)

Zhang¹,

Rosentrater²,

Bern³

2015

2015 ASABE International Meeting

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The objective of this project was to determine the effect of hermetic storage conditions on red flour beetle (Tribolium castaneum) and maize weevil (Sitophilus zeamais), and to hopefully reduce infestation during storage. This project used 4 oz. glass jars and vacuum grease to provide hermetic storage conditions. Red flour beetles (Tribolium castaneum) were placed in jars filled with wheat, and maize weevils (Sitophilus zeamais) were placed in jars containing corn. We examined counts of live and dead insects over time in both grains, using both hermetic and non-hermetic conditions. After 30 days, statistical analyses were conducted to determine the effects of hermetic vs. non-hermetic conditions for both grains. We found that 100% mortality for red flour beetle (Tribolium Castaneum) was obtained after 12 days for wheat under hermetic conditions. We also found 100% mortality of maize weevils after 12 days of hermetic storage of corn. KeywordsHermetic storage, Red flour beetle, Tribolium castaneum, maize weevil, Sitophilus zeamais, wheat, maize

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Cooking oils and “Triplex” in the control of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae) in farm-stored maize

Cited by 30 publications

References 7 publications

Postharvest Practices and Mycotoxins of Maize in Three Agro-Ecological Zones in Tanzania

Postharvest Practices and Mycotoxins of Maize in Three Agro-Ecological Zones in Tanzania

Persistência de óleos essenciais em milho armazenado, submetido à infestação de gorgulho do milho

Laboratory-scale hermetic storage of wheat and maize against the infestation of red flour beetle (Tribalism castaneum) and maize weevil (Sitophilus zeamais)

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