A new species of kola weevil from Nigeria—<i>Sophrorhinus gbanjaensis</i>(sp. nov.) (Coleoptera: Curculionidae)

Daramola, A. M.; Taylor, T. Ajibola

doi:10.1080/00222937500770301

Cited by 9 publications

(11 citation statements)

References 2 publications

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“…The major pest of kolanuts informed by farmers was kolanut weevil. Kolanut weevils are major pest of kolanuts both prior to the harvest and during storage [3,4,13,[19][20][21]. Kolanut weevil was also discovered by Asogwa et al [22] as the most destructive insect pest of kolanut in kolanut growing belt of Nigeria.…”

Section: Pest and Other Attack Of Kolanut In Storagementioning

confidence: 99%

Potentials and Challenges of Kolanut Production in Niger State, Nigeria

et al. 2012

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Niger State has unique history of kolanut production in northern part of Nigeria. Unfortunately, the potentials of kolanut production in the state are not duly recognized. Lavun and Mokwa Local Government Areas, where kolanut is widely produced were selected for the study. Kolanut farmers were randomly selected for administration of structured questionnaire. Cola nitida was the dominant species planted by the farmers. More than two third of the kolanut plantations were 60 years and above. Kolanut farms were mainly owned through inheritance. Farmers at Lavun adopted more cultural practices than the farmers at Mokwa; such practices included application of organic manure and mulching to the kolanut trees, felling of unproductive kolanut trees to coppice, and adoption of multiple land practice. Due to this, the farmers at Lavun got more harvest from their kolanut plantations than those at Mokwa. Stored nuts were mainly attacked by weevils and rot disease. Challenges of kolanut production are low yield, lack of information on improved technology, pest and disease infestation, lack of intervention from the government, and transportation. Farmers in the study areas still hold kolanut production in high esteem, and there is vast area of land which could be used for kolanut production.

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Section: Pest and Other Attack Of Kolanut In Storagementioning

confidence: 99%

Potentials and Challenges of Kolanut Production in Niger State, Nigeria

et al. 2012

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“…Kola weevils are controlled chemically by fumigation of the nuts with phostoxin (Gerald, 1967), dipping of weevilinfested nuts in concentrate of 0.03% gamma BHC emulsion (Ivbijaro, 1977) and irradiation of kola nuts using gamma radiation generated from cobalt 60 (Daramola, 1973;1978). Control of kola weevils in stored produce with the aid of a fumigant (methyl bromide) was proposed by Alberta and Mallamaire (1955) (Table 1).…”

Section: Controlmentioning

confidence: 99%

“…Its uses have inevitably created a high demand in excess of its production (Oladokun, 1985). Daramola (1973Daramola ( , 1978, reported that the kola weevils, Balanogastris kolae Desbr and Sophrorhinus spp are the most destructive pest of kola nut in West Africa. They are "field-to-store" pests as their infestation is initiated in the field and persists in storage (Daramola and Ivbijaro, 1975).…”

Section: Introductionmentioning

confidence: 99%

“…They are "field-to-store" pests as their infestation is initiated in the field and persists in storage (Daramola and Ivbijaro, 1975). Percentage infestation ranges from 30 to 100% depending on the sanitary condition on the farm and the time of harvest (Daramola, 1973); this accounts for a loss of about 60% of the produce (Quarco, 1973). Eggs are laid on the nuts or in other parts of the fruit.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of traders perception and adaptive techniques in the control of kola weevil, Balanogastris kolae

Azeez¹

2015

Afr. J. Agric. Res.

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A survey involving 160 kola nut traders who were randomly selected in two local governments of Ondo state was conducted to examine pest management practices carried out by the traders. Interview schedule structured questionnaire was used in a multi-stage random sampling to select 40 kola nut traders from two villages in each local government. Results showed that most of the respondents were already old with the mean age of 67 years, 87.5% were female, while 80.0% were married. Also, 25.0% had no formal education, 50.0% took farming as primary occupation. 80% traders used phostoxin tablets in preserving their kola nuts after proper curing though 40% still made use of gammalin 20 despite environmental concerns. Since 50% of traders used phostoxin, effectiveness of the fumigation was implicated as a preferred protectant. 80% of the respondents sources for chemical majorly from the hawkers, though only 35% of respondents were aware of the recently approved pesticides for use on kola, while 10% of the traders claimed to be aware of the ban. Thus, only 15.6% of traders claimed to be aware of health implications. Finally, the results of chi-square analysis revealed that relationship between socioeconomic variables and insect pest control is highly significant. Traders were faced with a lot of constraints such as poor extension visit, paucity of information about the practice which consequently affected pest management practice on their farms.

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“…Four species of the genus have been seen attacking the same host species in Nigeria (Daramola & Taylor 1975;Daramola 1978). Species of Sophrorhinus Rouzet are seed predators of the kola nut, Cola nitida, and are serious pests.…”

Section: Distribution the Subfamily Molytinae Includes Tribes And Sumentioning

confidence: 99%