Comparative efficacy of different concentrations of some promising insecticides for the control of &lt;i&gt;podagrica spp&lt;/i&gt; (coleoptera: Chrysomelidae) on Okra (Abelmoschus esculentus (L.) moench).

Ahmed, B. I.; Yusuf, SR; Yusuf, AU; Aliyu, Musa

doi:10.4314/gjass.v6i1.2297

Cited by 8 publications

(9 citation statements)

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“…This observation was, however, contrary to that of Obeng-Ofori and Sackey [28] (Ghana) and Ahmed et al [29] (Nigeria), who reported significant yield losses due to heavy defoliation of okra leaves. A similar study conducted by Dabinso-Dabire et al [30] reported that despite heavy infestation of okra plants by Podagrica sp.…”

Section: Discussioncontrasting

confidence: 88%

The Role of Ethanolic Extracts of Leaves and Roots of Lantana camara (L.) in the Management of Pests of Okra Abelmoschus esculentus (L.) Moench

Baidoo¹,

Adu²,

Peprah³

2017

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The cultivation of many crops in Africa is negatively affected by a number of constraints, the most important of which is the incidence of pests and diseases. In many areas of the world, the most preferred option in the management of pests is the application of synthetic chemical pesticides. Due to the negative effects of pesticides on humans and the environment as a whole, efforts are being made to find alternatives for pest management. Ethanolic extracts of the leaves and roots of Lantana camara were tested against the major pests of okra, Abelmoschus esculentus. The plant extracts were compared with a standard chemical insecticide, Mektin (a.i 18 g/L abamectin) in a randomly complete block design with four treatments and three replications. Parameters studied included the major pests of the plant and the damage caused, leaf area, plant height as well as yield of okra. Cotton aphids, Aphis gossypii, the tobacco whitefly Bemisia tabaci and the cotton flea beetle, Podagrica puncticollis were the major pests encountered on okra plants. Aphis gossypii and B. tabaci populations were significantly lower on the L. camara-sprayed plots compared with the control plots. Similarly, P. puncticollis numbers were significantly smaller on the L. camara-sprayed plots than the control plots.There were no significant differences between the treatments and the control for plant height, leaf area and yield. The significant reduction in pests numbers on the L. camara-sprayed plots indicates its potential as an alternative to chemical insecticides, thereby reducing the reliance on chemical insecticides in the management of insect pests.

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Section: Discussioncontrasting

confidence: 88%

The Role of Ethanolic Extracts of Leaves and Roots of Lantana camara (L.) in the Management of Pests of Okra Abelmoschus esculentus (L.) Moench

Baidoo¹,

Adu²,

Peprah³

2017

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“…Flea beetles are mainly leaf eater and have biting and chewing mouth parts. They are observed to commence their infestation on okra plants from the stage of germination throughout all stages of its growth (Ahmed et al, 2007;Pitan and Adewole, 2011). They produce a characteristic injury known as "shot holing" (Egwuatu, 1982) and occasionally damage flowers, shrubs and even trees.…”

Section: Introductionmentioning

confidence: 99%

Population Dynamics of Species of Flea Beetle on Okra (Abelmoschus esculentus L. MOENCH) and its Impact on Production

Oyerinde¹,

Olusi²,

Salako³

et al. 2017

GJAS

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This study was conducted to evaluate the impact of the population dynamics of species of flea beetle on Okra (Abelmoschus esculentus (L) Moench) production in FCT Abuja. The experiment was conducted at the Teaching and Research Farm, University of Abuja, Abuja. The treatments comprised of four different plant spacing of 50cm x 30cm, 50cm x 35cm, 50cm x 40cm and 50cm x 45cm. The two species of flea beetle encountered in the study (Monolepta goldingi and M. nigeriae) were recorded from 3 Weeks after Planting (WAP). The population of M. goldingi recorded was higher than M. nigeriae in the entire plot and throughout the duration of the experiment although the population of both remained high throughout the vegetative stage than the reproductive phase of growth of okra. Also, it was observed that the closely spaced plants had more pest infestation than wider spaced plants. The difference in the plant spacing has significance on the insect count and its population has significant reduction (P < 0.05) in fruit production, branching and Days to Flowering. The best fruit yield was obtained on the plot with plant spacing's of 50cm x 40cm, which yielded 11.84 fruits.

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“…So many insect pests attack okra plants from sowing up to harvesting (Ahmed, Chaudhary, & Yusuf, 1998;Iqbal, Ali, Hassan, & Jamil, 2015;Rahman, Uddin, & Shahjahan, 2013;Sohail et al, 2015). The most prevalent and destructive insect pests are Podagrica uniforma (Jacoby) and Nisotra dilecta (Jacoby) (Coleoptera: Chrysomelidae), which defoliated the plant; thereby reduces the photosynthetic activity of the leaves and resulting in poor plant growth and pod yield.…”

Section: Introductionmentioning

confidence: 99%

INSECTICIDAL EVALUATION OF Bridelia micrantha AND Dalbergia lactea AQUEOUS EXTRACTS FOR THE CONTROL OF Podagrica uniforma (Jacoby) AND Nisotra dilecta (Jacoby) (COLEOPTERA: CHYSOMELIDAE) INFESTATION ON OKRA

Adesina¹,

Ileke

Rajashekar

et al. 2016

Agrivita.J.Agr.Sci

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Insect pest infestation is a major factor militating against okra production and farmers generally adopt synthetic insecticides for its management. A field trial was undertaken to evaluate the insecticidal potency of Bridelia micrantha and Dalbergia lactea for the management of Podagrica uniforma (Jacoby) and Nisotra dilecta (Jacoby) insect pest of okra (Abelmoschus esculentus L. Moench). The treatments consisted of aqueous leaf extracts of Bridelia micrantha and Dalbergia lactea and Cypermethrin as check; laid out in Randomized Complete Block Design and replicated three times. Data was collected on insect population before treatment application and 3 days after spraying of insecticides at 28, 35, 42, 56 days after planting (DAP). Yield parameters data collected were number of fruits and fruit weight. Results obtained showed that the plant extracts exhibited effectiveness in reducing the insect population and improved okra fruit yield compared to Cypermethrin. The order of effectiveness in decreasing sequence was found to be Cypermethrin ˃ D. lacteal ˃ B. micrantha. D. lacteal and B. micrantha crude extracts could be explored as promising insecticidal agents to provide valuable alternatives to chemical control of insect infestation on okra. Further study is recommended to determine the chemical constituents responsible for the plant insecticidal activity.

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Comparative efficacy of different concentrations of some promising insecticides for the control of <i>podagrica spp</i> (coleoptera: Chrysomelidae) on Okra (Abelmoschus esculentus (L.) moench).

Cited by 8 publications

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The Role of Ethanolic Extracts of Leaves and Roots of <i>Lantana camara</i> (L.) in the Management of Pests of Okra <i>Abelmoschus esculentus</i> (L.) Moench

The Role of Ethanolic Extracts of Leaves and Roots of <i>Lantana camara</i> (L.) in the Management of Pests of Okra <i>Abelmoschus esculentus</i> (L.) Moench

Population Dynamics of Species of Flea Beetle on Okra (Abelmoschus esculentus L. MOENCH) and its Impact on Production

INSECTICIDAL EVALUATION OF Bridelia micrantha AND Dalbergia lactea AQUEOUS EXTRACTS FOR THE CONTROL OF Podagrica uniforma (Jacoby) AND Nisotra dilecta (Jacoby) (COLEOPTERA: CHYSOMELIDAE) INFESTATION ON OKRA

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Comparative efficacy of different concentrations of some promising insecticides for the control of <i>podagrica spp</i> (coleoptera: Chrysomelidae) on Okra (Abelmoschus esculentus (L.) moench).

Cited by 8 publications

References 0 publications

The Role of Ethanolic Extracts of Leaves and Roots of &lt;i&gt;Lantana camara&lt;/i&gt; (L.) in the Management of Pests of Okra &lt;i&gt;Abelmoschus esculentus&lt;/i&gt; (L.) Moench

The Role of Ethanolic Extracts of Leaves and Roots of &lt;i&gt;Lantana camara&lt;/i&gt; (L.) in the Management of Pests of Okra &lt;i&gt;Abelmoschus esculentus&lt;/i&gt; (L.) Moench

Population Dynamics of Species of Flea Beetle on Okra (Abelmoschus esculentus L. MOENCH) and its Impact on Production

INSECTICIDAL EVALUATION OF Bridelia micrantha AND Dalbergia lactea AQUEOUS EXTRACTS FOR THE CONTROL OF Podagrica uniforma (Jacoby) AND Nisotra dilecta (Jacoby) (COLEOPTERA: CHYSOMELIDAE) INFESTATION ON OKRA

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The Role of Ethanolic Extracts of Leaves and Roots of <i>Lantana camara</i> (L.) in the Management of Pests of Okra <i>Abelmoschus esculentus</i> (L.) Moench

The Role of Ethanolic Extracts of Leaves and Roots of <i>Lantana camara</i> (L.) in the Management of Pests of Okra <i>Abelmoschus esculentus</i> (L.) Moench