Field evaluation of some selected plant materials for the control of major insect pests of cowpea (<i>Vigna unguiculata</i>(L.) Walp.) in the Northern Guinea Savannah of Nigeria

Ahmed, B I; Abubakar, Aliya; Ringim, Sani Yusuf; Voncir, N.

doi:10.1080/03235400701288352

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…This implies that botanical leaf extracts has the capacity to protect eggplants because it carried with some hazardous or toxic residues. Results supports the findings of Ahmed et al (2009) Zehnder et al (19961997) implied that the availability of more undamaged foliage which through photosynthesis resulted in increased dry matter accumulation in the fruits. Fig.…”

Section: Number Of Non-marketable Fruitssupporting

confidence: 89%

Botanical Leaf Extracts and Mulching Materials in Organic Eggplant (Solanum Melongena L.) Off Season Production

Peralta

2023

IJMRA

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The extensive use of pesticides and the risk they pose to human and the environment requires safe alternatives in crop production hence the study on the efficacy of botanical leaf extracts and mulching materials in organic eggplant production. This study determined the best level combination of botanical leaf extracts that has repellent and knockdown effects on major eggplant insect pest, best level combination of botanical leaf extracts that produces the highest marketable yield; best mulching materials; best level combination of botanical leaf extracts and mulching; correlation of infestation to yield; profitability of eggplant production using botanical leaf extracts and mulching materials combined; and evaluate the effects of botanical leaf extracts and mulching materials on soil chemical properties. A Bioassay test on the botanical leaf extracts was conducted prior to field experiment. Mass rearing the test insects was done to ensure uniform number of insect in eggplant per treatment. A Split- plot in Factorial Design was used in the study with three blocks. The main plot were the leaf extracts of Neem, Madre de Cacao+ Guava at 1:1:1 ratio were: P0 – No Application, P1 –250 ml leaf extract/16 li water, P2 –500 ml leaf extract /16 li water, P3 –750 ml leaf extract /16 li water, P4 – 40 ml Commercial insecticide/16 li water. The sub-plot was: M1 – Black Plastic mulch, M2 – Carbonize Rice Hulls, and M3 – Saw Dust. Results of the bioassay showed highly significant knockdown effect in the application of 500-750ml leaf extract/16 li water on fruit and shoot borer, lady spotted beetle and white flies comparable to application of commercial insecticide/16 li water. Significant repellent effects on Fruit Shoot Borer and Lady spotted beetles but no repellent effects on white flies for an application of 250ml botanical leaf extracts/16li water. Results under field condition showed that plants applied with 750ml botanical leaf extracts/16 li water is more effective than commercial insecticide/16 li water in reducing damaged leaves during the early vegetative stage of development (2nd WAT) and at reproductive stage of development (10th WAT). Highly significant difference was obtained in terms in weight of non-marketable fruit. No significant interaction was registered between botanical leaf extracts and mulching materials. Regression correlation analysis revealed that there was a direct correlation between the numbers of damaged leaves to yield. Combined application of botanical leaf extracts at 750ml/16 li water + carbonized rice hulls obtained Php 797,635.15 net for organic off-season eggplant production. Soil pH, OM, P, and K were increased with application of sawdust, carbonized rice hulls and plastic mulch.

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Section: Number Of Non-marketable Fruitssupporting

confidence: 89%

Botanical Leaf Extracts and Mulching Materials in Organic Eggplant (Solanum Melongena L.) Off Season Production

Peralta

2023

IJMRA

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Repellent effect of sirinol (garlic emulsion) against Lasioderma serricorne (Coleoptera: Anobiidae) and Tribolium castaneum (Coleoptera: Tenebrionidae) by three laboratory methods

Jahromi¹

2011

Afr. J. Biotechnol.

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To alleviate insect pest problems in storage, synthetic pesticides are recommended; but their use may create toxicity to non-target organisms, development of resistance and residues in treated products. Under such circumstances, the need for research to find a safe, convenient, durable and economically logical method is necessary. The application of repellents could be considered as a new control method in storage. In this study, percentage repellency (PR) of Sirinol (garlic emulsion) was assayed on adults of cigarette beetles, Lasioderma serricorne (F.) and red flour beetles, Tribolium castaneum (Herbst) using three techniques, Petri-dish, Y-shape olfactometer tube and leaky glass. The insects were exposed to 0, 0.5, 1.5 and 10% concentration of Sirinol that is a botanical compound and PR of the adults was determined. In each of the three methods, the maximum PR of Sirinol was about 10% concentration, and the quantities were equal to 58.56, 42.58 and 26.29% for L. serricorne and 70.99, 55.47 and 38.72 for T. castaneum in Petri-dish, Y-shape olfactometer tube and leaky glass techniques, respectively. The interaction between concentration and time (concentration × time) was not significant for the adults of the two species. It was shown that T. castaneum was more susceptible to Sirinol than L. serricorne. Data analysis revealed that PRs of Sirinol were not significantly different between the time of 12 and 72 h.

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Field evaluation of some selected plant materials for the control of major insect pests of cowpea (Vigna unguiculata(L.) Walp.) in the Northern Guinea Savannah of Nigeria

Cited by 2 publications

References 6 publications

Botanical Leaf Extracts and Mulching Materials in Organic Eggplant (Solanum Melongena L.) Off Season Production

Botanical Leaf Extracts and Mulching Materials in Organic Eggplant (Solanum Melongena L.) Off Season Production

Repellent effect of sirinol (garlic emulsion) against Lasioderma serricorne (Coleoptera: Anobiidae) and Tribolium castaneum (Coleoptera: Tenebrionidae) by three laboratory methods

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