Effects of two eco-friendly insecticides (Dennettia tripetala &amp; Piper guineense) against Dermestes maculatus (Degeer) on smoked dried Clarias gariepinus (Pisces: Clariidae)

Olayinka-Olagunju, Josephine Omowumi

doi:10.9790/2402-08713743

Cited by 7 publications

(6 citation statements)

References 16 publications

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“…There is increase in area of contact between the particles and insect cuticle because there is greater surface volume ratio in smaller particles (Korunic 1998; Nwaubani et al, 2014;Otitodun et al, 2015). al., 2014;Otitodunet al, 2015) and BLA (Dwivedi et al, 2006;Mohapatra et al, 2011;Olawale, 2020), which kills the insects by absorption of the epicuticular wax of the insect, leading to desiccation and death (Subramanyam and Roesli, 2000;Athanassiou and Steenberg, 2007). Table 1 of this study reveals that all the test dusts were observed to have potentials of reducing adult emergence.…”

Section: Resultsmentioning

confidence: 98%

Comparative Bioactivity of Bamboo Leaf Ash and Bularafa Diatomaceous Earth against Maize Weevil (Sitophilus zeamais Motschulsky)

Abdulbaki¹,

Nwebor²,

Uzu³

et al. 2022

jasem

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Maize is one of the major staple foods in Sub-Saharan Africa and there is serious loss in maize storage due to insect damage. This study compared the bioactivity of Bamboo Leaf Ash (BLA) and Bularafa Diatomaceous Earth (BDE) against Maize Weevil (Sitophilus zeamais Motschulsky) under laboratory conditions. Insecto®, a commercialized DE was also tested as standard check. Adults of the insects were exposed on maize admixed with the BLA at dose rate of 5,000, 10,000 and 20,000ppm; BDE and insecto® at a dose rate of 1,000ppm, at 28.20C and 82.2% relative humidity. Mortality increased with increasing exposure duration and all treatments showed mortality of more than 80% after 14days post-treatment compared to negative control with 0%.The treatments suppressed F1 progeny. Treated grains have weight loss less than 4%, kennel damage less than 14% and grain germination showed no significant change. The decreasing efficacy of the dusts against this insect is Insecto®> BLA > BDE. BLA and BDE have potential for the management of insect pests of stored grain in Nigeria.

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Section: Resultsmentioning

confidence: 98%

Comparative Bioactivity of Bamboo Leaf Ash and Bularafa Diatomaceous Earth against Maize Weevil (Sitophilus zeamais Motschulsky)

Abdulbaki¹,

Nwebor²,

Uzu³

et al. 2022

jasem

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“…The efficacy of the ethyl acetate and n-Haxane could be attributed to their oily appearance, in contrast to the solid methanolic extracts, which is similar to the finding of Ajayi and Peter (2016) who reported extract of P. guineense yielded oil which has been reported to be very effective in the control of stored product pest. The use of plant extract and other forms of plant materials as insect pest control and management of stored food products have been reported by several researchers (Fasakin, 2003;Adebote et al, 2006;Akinwumi et al, 2007;Olayinka, 2014;Fasakin, 2003) and it has been shown that oil extracts obtained from P. guineense, Monodora myristica, and African melegueta were highly effective in controlling various stages of D. maculatus on smoked fish during storage. The oil extracts of these plants were 100% effective when compared with 16.7% in untreated (control) smoked fish.…”

Section: Discussionmentioning

confidence: 99%

“…Botanical pesticide tends to have broad spectrum activity relatively specific in their mode of action and easy to process and use (Viglianco et al, 2008). To minimize use of synthetic pesticide, several plants' extracts have been reported as effective against D. maculatus on dried fish by several researchers (Fasakin, 2003;Akinwumi et al, 2006Akinwumi et al, , 2007Akpotu and Adebote, 2013;Olayinka, 2014). These extracts provide a solution to the problem emanating from the use of synthetic chemicals.…”

Section: Introductionmentioning

confidence: 99%

Contact activities of Piper guineense (Schum and Thonn) and Eugenia aromaticum (L). (Merril and Perryl) extracts against larvae of hide beetles, Dermestes maculatus (Degger) (Coleoptera: Dermestidae)

Jatau,

Badamasi,

Yahaya

2023

Afr. J. Biotechnol.

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Contact activities of Piper guineense (Schum and Thonn) and Eugenia aromaticum (L). (Merril andPerryl) extracts in the control of Dermestes maculatus larvae infesting stored fish (Clarias gariepinus) were investigated under laboratory condition (28±3°C and 65±5% RH). The extracts were tested by application of 2.0 µL each to ten third instars larvae using micro pipette at a concentration of 6.00, 10.00 and 20.00% each of the plant extracts (methanol, n-hexane and ethyl acetate). Mortality was recorded at 1, 2, 3 and 7 days of post treatments. The observed mortality was dose and exposure-dependent. All the extracts significantly enhanced larval mortality (P>0.05) when compared with the control. The n-hexane and ethyl-acetate extracts of P. guineense at 20% concentration induced the highest mortality of 86.66%, lowest mortality of 56.66% was observed on methanol fraction treated larvae after 7 days of post treatments. The n-haxane of E. aromaticum extracts recorded highest mortality (80.0%), followed by ethyl-acetate (76.66%) and methanolic (7.00%) fractions treated larvae at 20% concentration after 7 days of post-treatments. The results showed strong insecticidal activity in control of larvae of hide beetles infesting dried fish.

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“…Their powders were sieved through a mesh size of 1mm 2 and stored separately in tight lid containers at 28 ± 3°C and 75 ± 5% RH (relative humidity). Acetone extract of the botanicals was obtained separately using a cold extraction method [40]. This was done by soaking 300g of the powder in an extraction bottle containing 900ml of acetone for 72 hours.…”

Section: Methodsmentioning

confidence: 99%

Variation in the susceptibility of Anopheles gambiae to botanicals across a metropolitan region of Nigeria

et al. 2019

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Pesticide resistance is normally associated with genetic changes, resulting in varied responses to insecticides between different populations. There is little evidence of resistance to plant allelochemicals; it is likely that their efficacy varies between genetically diverse populations, which may lead to the development of resistance in the future. This study evaluated the response of Anopheles gambiae (larvae and adults) from spatially different populations to acetone extracts of two botanicals, Piper guineense and Eugenia aromatica. Mosquito samples from 10 locations within Akure metropolis in Southwest Nigeria were tested for variation in susceptibility to the toxic effect of botanical extracts. The spatial distribution of the tolerance magnitude (T.M.) of the mosquito populations to the botanicals was also mapped. The populations of An. gambiae manifested significant differences in their level of tolerance to the botanicals. The centre of the metropolis was the hot spot of tolerance to the botanicals. There was a significant positive correlation between the adulticidal activities of both botanicals and initial knockdown. Hence, knockdown by these botanicals could be a predictor of their subsequent mortality. In revealing variation in response to botanical pesticides, our work has demonstrated that any future use of botanicals as alternative environmentally friendly vector control chemicals needs to be closely monitored to ensure that resistance does not develop.

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Effects of two eco-friendly insecticides (Dennettia tripetala & Piper guineense) against Dermestes maculatus (Degeer) on smoked dried Clarias gariepinus (Pisces: Clariidae)

Abstract: The efficacy of pulverized and extracts of Dennettia tripetala and Piper gunieense indigenous to

Cited by 7 publications

References 16 publications

Comparative Bioactivity of Bamboo Leaf Ash and Bularafa Diatomaceous Earth against Maize Weevil (Sitophilus zeamais Motschulsky)

Comparative Bioactivity of Bamboo Leaf Ash and Bularafa Diatomaceous Earth against Maize Weevil (Sitophilus zeamais Motschulsky)

Contact activities of Piper guineense (Schum and Thonn) and Eugenia aromaticum (L). (Merril and Perryl) extracts against larvae of hide beetles, Dermestes maculatus (Degger) (Coleoptera: Dermestidae)

Variation in the susceptibility of Anopheles gambiae to botanicals across a metropolitan region of Nigeria

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