Infestation of dried cassava (Manihot esculenta Crantz) by Prostephanus truncatus (Horn( (Coleoptera: Bostrichidae)

Hodges, Richard; Meik, J.; Denton, Helen

doi:10.1016/0022-474x(85)90024-4

Cited by 45 publications

(16 citation statements)

References 6 publications

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“…LGB is highly voracious and can cause up to 40% yield loss in stored maize grains within six months and 75% in fermented cassava roots within four months (Hodges et al 1985). In addition to causing weight loss, LGB can also reduce the nutritional composition of infested grains, particularly amino acids, lysine, tryptophan and level of grain viability (Torreblanca et al 1983).…”

Section: Introductionmentioning

confidence: 98%

Evaluation of damage of some food commodities by larger grain borer–Prostephanus truncatus(Horn) {Coleoptera: Bostrichidae} and microbial composition of frass induced by the insect

Osipitan¹,

Akintokun²,

Odeyemi³

et al. 2011

Archives Of Phytopathology And Plant Protection

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The microbial composition of the frass from maize (Zea mays) grains and seven dried root and tuber crops (R&TC) infested by Prostephanus truncatus were evaluated. Five cubes (6 cm 3 ) of each R&TC as well as 100 g of maize grains were separately infested with 15 pairs of 1-2 day old adult LGB in 250 cm 3 sized Kilner jars and incubated for 90 days at 28 + 18C and 79-82% RH. At 90 days post-infestation, the microbiological assay of frass from the commodities was performed. The results indicated the presence of 10 bacterial species, namely Bacillus cereus, B. macerans, Proteus mirabilis, P. morganic, P. rettgeri, Proteus sp., Pseud geniculatum, Pseud fragii, Pseud putela, Serratia marcences and six fungal species, namely Aspergillus niger, A. tamari, A. parasiticus, A. ochraceus, Fusarium compacticum and F. oxysporum. Infested cubes of M. esculenta have the highest population of adult LGB (168.3) and frass from its damaged cubes had the highest mean bacterial count of 30.0 6 10 7 colony forming units (CFU) and it was significantly (P 5 0.05) higher than LGB infestation and bacterial infection of other R&TC. The bacterial count from the damaged commodities correlated positively and significantly (P 5 0.05) with weight of frass, percentage damage and percentage weight loss. The results revealed that frass from the LGB-infested and damaged commodities were infected by bacteria and fungi. Maize grains and dried R&TC should therefore be protected from LGB infestation to avoid quantity reduction and microbial infection.

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Section: Introductionmentioning

confidence: 98%

Evaluation of damage of some food commodities by larger grain borer–Prostephanus truncatus(Horn) {Coleoptera: Bostrichidae} and microbial composition of frass induced by the insect

Osipitan¹,

Akintokun²,

Odeyemi³

et al. 2011

Archives Of Phytopathology And Plant Protection

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“…Perdas de até 73% foram observadas em mandioca seca fermentada e 52% em mandioca não-fermentada, atribuídas a Dinoderus spp. e P. truncatus na Tanzânia, por Hodges et al (1985). Resultados semelhantes foram obtidos por Rajamma et al (1996), que observaram D. minutus causando enormes prejuízos, inclusive ocasionando perdas superiores às causadas por Sitophilus oryzae (L.) e Araecerus fasciculatus DeGeer em Larvas Adultos mandioca fermentada.…”

Section: Resultsunclassified

Parasitismo de Acarophenax lacunatus (Cross & Krantz) (Prostigmata: Acarophenacidae) sobre Dinoderus minutus (Fabr.) (Coleoptera: Bostrichidae)

Oliveira¹,

Faroni²,

Guedes³

et al. 2002

Neotrop. Entomol.

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“…It's described as dual existence insect as both in storage pest and forest insects (Nansen et al, 2004). The adult P. trancatus have a cylindrical bostrichid shape (Figure 12), the body is 3 to 4.5 mm long and dark brown in color (Hodges, 1985). 1980's (Dunstan andMagazini, 1981) and then 1984 in Togo (Harnisch and Krall, 1984).…”

Section: The Larger Grain Borer (Prostephanus Truncatus)mentioning

confidence: 99%

Current Maize Production, Postharvest Losses and the Risk of Mycotoxins Contamination in Tanzania

Suleiman¹,

Rosentrater²

2015

2015 ASABE International Meeting

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Agriculture is the backbone of Tanzanian economy. It accounts for about one-third of the gross domestic product (GDP), provides 85 percent of all exports and saves as a livelihood to over 80 percent of the total population. Maize is the primary staple crop; it's grown in nearly all agro-ecological zones in the country. Tanzania is a major maize producer in Sub-Saharan Africa. In the last four decades, Tanzania has ranked among the top 25 maize producing countries in the world. In the 2013/14 growing seasons Tanzania produced over half billion metric tons of maize of these maize smallholder farmers produced around 85%. Despite the steady production of maize over the past three decades, post-harvest losses of maize remained significant, up to 30-40 % in some rural areas. Post-harvest handling, poor infrastructure, weather variability, biotic factors such as insects and pests, bacteria, pathogens, viruses, and fungi, often aggravate such losses. Mycotoxin producing fungi pose a major risk. Mycotoxins are toxic secondary metabolites of fungi that frequently contaminate the maize in the field and/or during storage. Mycotoxin contamination of maize poses a health risk to humans and animals if not properly managed. The most important mycotoxins in Tanzania are the aflatoxins, fumonisins and Ochratoxin. The objective of this paper was to review current literature on the production trends, consumption, post-harvest losses, and mycotoxins contamination of maize and to provide strategies to control and prevent postharvest losses and mycotoxins contamination in Tanzania. Agriculture is the backbone of Tanzanian economy. It accounts for about one-third of the gross domestic product (GDP), provides 85 percent of all exports and saves as a livelihood to over 80 percent of the total population. Maize is the primary staple crop; it's grown in nearly all agro-ecological zones in the country. Tanzania is a major maize producer in Sub-Saharan Africa. In the last four decades, Tanzania has ranked among the top 25 maize producing countries in the world. In the 2013/14 growing seasons Tanzania produced over half billion metric tons of maize of these maize smallholder farmers produced around 85%. Despite the steady production of maize over the past three decades, post-harvest losses of maize remained significant, up to 30-40 % in some rural areas. Post-harvest handling, poor infrastructure, weather variability, biotic factors such as insects and pests, bacteria, pathogens, viruses, and fungi, often aggravate such losses. Mycotoxin producing fungi pose a major risk. Mycotoxins are toxic secondary metabolites of fungi that frequently contaminate the maize in the field and/or during storage. Mycotoxin contamination of maize poses a health risk to humans and animals if not properly managed. The most important mycotoxins in Tanzania are the aflatoxins, fumonisins and Ochratoxin. The objective of this paper was to review current literature on the production trends, consumption, post-harvest losses, and mycotoxins contamination of mai...

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Infestation of dried cassava (Manihot esculenta Crantz) by Prostephanus truncatus (Horn( (Coleoptera: Bostrichidae)

Cited by 45 publications

References 6 publications

Evaluation of damage of some food commodities by larger grain borer–Prostephanus truncatus(Horn) {Coleoptera: Bostrichidae} and microbial composition of frass induced by the insect

Evaluation of damage of some food commodities by larger grain borer–Prostephanus truncatus(Horn) {Coleoptera: Bostrichidae} and microbial composition of frass induced by the insect

Parasitismo de Acarophenax lacunatus (Cross & Krantz) (Prostigmata: Acarophenacidae) sobre Dinoderus minutus (Fabr.) (Coleoptera: Bostrichidae)

Current Maize Production, Postharvest Losses and the Risk of Mycotoxins Contamination in Tanzania

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