The effects of four agrobotanical extracts and three types of bags on the control of insect pests and moulds of stored yam chips

Eze, S. C.; Asiegbu, J. E.; Mbah, B. N.; Orkwor, Gabriel; Asiedu, Robert

doi:10.4314/as.v5i1.1538

Cited by 10 publications

(11 citation statements)

References 1 publication

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“…The plants used during parboiling (Vernier et al 2005, Eze et al 2006) might have had an insecticidal or repellent effect. It has been reported that parboiling results in partial gelatinization of starch and the subsequent binding of the gelled starch onto the surface of the yam chips, which hardens them (Rajamma et al 1994), probably making them more storable.…”

Section: Table 2 Principal Insects Encountered In Stored Yam Chips Imentioning

confidence: 99%

“…Also four botanical extracts, including Azadirachta indica A. Juss, Xylopia aethiopica (Dunal) A. Ch., Occimum gratissimum L., and Zingiber officinale Roscoe, were tested; the botanical extracts controlled insect infestation on the stored chips (Eze et al 2006). Vernier et al (2005) have investigated the use of botanical extract for protecting stored yam chips in Benin.…”

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confidence: 99%

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Infestation and Population Dynamics of Insects on Stored Cassava and Yams Chips in Benin, West Africa

Gnonlonfin¹,

Hell

Siame

et al. 2008

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Natural insect infestation in cassava (Manihot esculenta Crantz subspecies esculenta) and yam (Dioscorea spp.) chips was evaluated during two consecutive storage seasons (2003-2004 and 2004-2005) in two agroecological zones of Benin (Northern Guinea Savanna [NGS] and Sudan Savanna [SS]). The insects infesting chips were collected, identified, and counted, they included Prostephanus truncatus (Horn) (Coleoptera: Bostrychidae), Cathartus quadricollis (Guerin) (Coleoptera: Silvanidae), Carpophilus dimidiatus (F.) (Coleoptera: Nitidulidae), Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), and Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae). P. truncatus and C. quadricollis were observed with a higher prevalence on cassava than on yam chips. During both seasons after 3 mo of storage, all (100%) cassava chip samples were infested with P. truncatus and C. quadricollis in both agroecological zones, whereas yam chips only showed lower infestation rates of 59.5 and 19.1% for P. truncatus and C. quadricollis, respectively, at the end of storage in 2003-2004. During the 2004-2005 season after 3 mo of storage infestation rate in yam chips was 66 and 24% in NGS and 100 and 0% in SS for P. truncatus and C. quadricollis, respectively, showing that insect infestation levels vary significantly with commodity, year, and fluctuate during the storage season.

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Section: Table 2 Principal Insects Encountered In Stored Yam Chips Imentioning

confidence: 99%

mentioning

confidence: 99%

Infestation and Population Dynamics of Insects on Stored Cassava and Yams Chips in Benin, West Africa

Gnonlonfin¹,

Hell

Siame

et al. 2008

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“…Plantains and bananas can only be stored for a relatively long period of time in the form of dried chips and flour (Fayemi, 1999). Processing crops to chips helps to increase their shelf life, reducing bulkiness, improve handling, remove non-edible and unmarketable parts etc (Eze et al, 2006). Despite the above advantages, storage of chips has been faced with the problem of pests and moulds (Chijindu and Boateng, 2008).…”

Section: Introductionmentioning

confidence: 99%

Responses of Tribolium Castaneum (Herbst.) (Colleoptera: Tenebrionidae) to Coloured Polyethylene Films in Storage of Musa Chips

Chukwulobe¹,

Echezona²

2014

WJAR

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Problems associated with synthetic pesticides have necessitated the search for an alternative pest control method. The effect of six coloured polyethylene films on Tribolium castaneum infestation on stored chips was studied in the Laboratory, from February to May, 2012. Three Musa spp (Agbagba, Obino'l ewai and cooking banana) were used. Dried chips (20 g) of each Musa spp were weighed into six different coloured perforated polyethylene bags (blue, red, yellow, green, black, and transparent) after further drying to constant moisture content in the oven. Ten adult beetles, comprising 5 males and 5 females were introduced into each bag tightly closed using rubber band. The experiment was a 6 × 3 factorial (6 colours polyethylene films by 3 Musa spp) laid out in a completely randomized design (CRD) with three replications. Results showed that there were significant differences amongst the three Musa species on the survival, progeny production and damage caused by T. castaneum. Survival counts of adult T. castaneum on chips stored in various coloured polyethylene bags within the period of 21 days did not differ significantly from one another. Generally all the coloured films reduced the abundance of T. castaneum on chips more than the colourless (transparent) films. Red coloured polybags significantly reduced beetles infestations and retained the highest weight of chips up to three months after infestation. Damage on chips stored in red coloured bags was significantly lower than those of yellow, green and transparent colours but did not differ with those of blue and black. Chips stored in transparent bags had the highest number of beetles and sustained the highest damage than other coloured polybags. Keywords

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“…Musa spp can only be stored for relatively long period of time in the form of dried chips or fried (Fayemi, 1999). Processing crops to chips helps to increase their shelf life, reduce transport cost by reducing bulkiness, improve handling quality, remove non-edible and unmarketable parts and make producers earn higher income by helping them keep their produce till the season of scarcity (Eze et al, 2006). Raw materials are also made available for the agroindustries (Amusa, 2001).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Three Protectants, Primiphos Methyl, Piper guineense and Eugenia aromatica, against Tribolium castaneum (Herbst) (Coleoptera Tenebrionidae) on Stored Chips of Three Musa spp

Chukwulobe¹,

Echezona²

2014

WJAR

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Musa spp are highly perishable crops with serious storage problems. Transformation to chips and flour has been identified as the only means of keeping them for a relatively longer period of time. This transformation, however, exposes them to attack by many storage pests including Tribolium castaneum Herbst. To get protection from these pests, in the past, synthetic pesticides were used with some measure of success. However, residue accumulation, toxicity to man and pest resistance caused by arbitrary use of synthetic pesticides have inspired this research into a healthy and less toxic alternative control measures for stored produce pests of chips. . The experiment was laid out as 8 × 3 factorial (8 levels of protectants by 3 levels of chips) in completely randomised design (CRD) with three replications. Results revealed that actellic (Primiphos methyl) had significantly (p < 0.05) higher mortality effect on adult T. castaneum than the other protectants. Chips treated with 2g cloves had significantly (p < 0.05) lower percentage loss and lower rate of damage than all the protectants but its effects was similar to that of actellic. 2g cloves therefore compared favourably with the synthetic pesticides against T. castaneum in chips storage.

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The effects of four agrobotanical extracts and three types of bags on the control of insect pests and moulds of stored yam chips

Cited by 10 publications

References 1 publication

Infestation and Population Dynamics of Insects on Stored Cassava and Yams Chips in Benin, West Africa

Infestation and Population Dynamics of Insects on Stored Cassava and Yams Chips in Benin, West Africa

Responses of <i>T</i><i>ribolium</i><i> C</i><i>astaneum</i> (Herbst.) (Colleoptera: Tenebrionidae) to Coloured Polyethylene Films in Storage of <i>M</i><i>usa</i> Chips

Efficacy of Three Protectants, Primiphos Methyl, <i>Piper</i> <i>guineense</i> and <i>Eugenia</i> <i>aromatica</i><i>,</i> against <i>Tribolium</i> <i>castaneum</i> (Herbst) (Coleoptera Tenebrionidae) on Stored Chips of Three <i>Musa</i> spp

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