Efficacy of Some Botanical Extracts on Root-Knot Nematode (Meloidogyne incognita) Egg- Hatch and Juvenile Mortality in vitro

Jidere, C. I.; Oluwatayo, J. I.

doi:10.9734/ajahr/2018/44736

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…Scientists are resorting to use botanicals for the control of pest since synthetic pesticides are expensive and hazardous. The use of botanicals as control measures against plant parasitic nematodes is now the focus of researchers because they are eco-friendly, easy degradable, cost effective and easily available [13].…”

Section: Discussionmentioning

confidence: 99%

Nematicidal Effect of Some Botanical Extracts for the Management of Meloidogyne incognita and on Growth of Tomato

Oluwatayo

Jidere²,

Nwankiti

2019

AJAHR

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Tomato (Solanum lycopersicum L.) is an important and widely grown vegetable crop all over the world. Although tomato is nutritionally and economically important, its production is constrained by biotic and abiotic constraints leading to poor marketable quantity and quality worldwide. Root-knot nematodes are one of the major pests affecting tomato production worldwide, especially, in the tropical and sub-tropical regions. Green house experiments were laid out in Complete Block Design (CBD) with a 3x7 factorial arrangement replicated three times carried out at the Department of Crop and Environmental Protection, University of Agriculture. The soil was sterilized before the experiment. Fresh leaves and seeds of Moringa oleifera, Ricinus communis and Jatropha curcas were washed with tap water, 15 g from each of leaves and seeds of the different botanicals was macerated separately in an electric blender at high speed for 4 minutes in 100 ml distilled water. The mixtures were passed through a Whatman filter paper number 1; the filtrates of the leaves/seeds were then collected. Three tomato varieties viz: Roma Vf, Rio Grande and UC82B were inoculated with approximately 5,000 freshly hatched second stage juvenile of Meloidogyne incognita, two weeks after transplanting. Thirty percent aqueous extract each of Castor, Moringa and Jatropha leaves and seeds was used, while double distilled water (0%) served as the control. Thirty ml of each leaf and seed aqueous extract was applied, 48 hours after inoculation as soil drench. Application was done at 1 weeks intervals thereafter for a period of 16 weeks. Data collected include number of fruits per plant, root gall index, nematode reproductive factor, and final nematode population. The results showed that various Moringa oleifera, Ricinus communis and Jatropha curcas leaves and seed extracts significantly (P<0.05) reduced root gall index, final population of M. incognita in the soil and nematode reproductive factor than the control. Application of the various treatments Moringa oleifera, Ricinus communis and Jatropha curcas led to significant increase in mean number of fruits and mean fruit weight yield of all the three tomato varieties. Therefore, the application of leaf and seed aqueous extracts of Moringa, Jatropha and Castor will serve as good alternative for the management of root knot nematode Meloidogyne incognita.

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Section: Discussionmentioning

confidence: 99%

Nematicidal Effect of Some Botanical Extracts for the Management of Meloidogyne incognita and on Growth of Tomato

Oluwatayo

Jidere²,

Nwankiti

2019

AJAHR

Self Cite

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Integrated management of Meloidogyne incognita on tomato using combinations of abamectin, Purpureocillium lilacinum, rhizobacteria, and botanicals compared with nematicide

El-Ashry

Ali

Elsobki

et al. 2021

Egypt J Biol Pest Control

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Background Acceptable alternative eco-friendly tools in the present study were tested to control the root-knot nematode, Meloidogyne incognita, on greenhouse-cultivated vegetables. The nematicidal effect of rhizobacteria (Pseudomonas and Serratia), egg parasitic fungus (Purpureocillium lilacinum), abamectin (Streptomyces avermitilis), and 3 botanicals (colocynth, Citrullus colocynthis; moringa, Moringa oleifera; marigold, Tagetes erecta L.) singly or in combination was tested against M. incognita, in comparison with emamectin benzoate. Results In vitro treatments revealed that egg hatching and juvenile mortality were influenced by the type of bioagents, plant species of botanicals, and exposure time. All the tested bioagents and botanicals displayed nematicidal potential via their ovicidal and larvicidal action on egg hatching and J2 mortality of M. incognita. Three and 5 days post-treatment, abamectin and emamectin benzoate were more effective than P. lilacinum, Serratia and Pseudomonas, and C. colocynthis in inhibiting egg hatching: 96.31 and 94.88%; 95.79 and 94.05%; 94.11 and 94.46%; 85.54 and 87.28%; 88.87 and 84.30%, respectively. On the other hand, after 10 days, P. lilacinum gave the highest inhibition percentage (99.00%), followed by abamectin (89.25%). However, the difference was insignificant compared with the inhibition percentage of rhizobacteria, Serratia and Pseudomonas (88.69%; p ≤ 0.05). Moreover, juvenile mortality was 100.0, 96.80, and 91.60% after 10 days of treatment, respectively. However, botanicals showed a lower effect on egg hatching and juvenile mortality. Under greenhouse conditions, potential antagonism towards M. incognita by application the mixture of biocontrol agents and botanicals was more effective in controlling M. incognita than single treatments. Conclusions The combination of abamectin and/or emamectin benzoate with P. lilacinum and rhizobacteria was the most effective against M. incognita, followed by rhizobacteria and P. lilacinum, not only in decreasing galls and reproduction of M. incognita but also in increasing plant growth of tomato parameters than the control. The application of various bioagents including abamectin might be a potential antagonism strategy against phytonematodes in protected agricultural areas.

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Efficacy of Leaf Extract of Piliostigma Thonningii for Control of Root-Knot Nematode (Meloidogyne javanica) on Eggplant

Mamman

Umar

Malgwi

et al. 2021

JEAI

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Extracts of Piliostigma thonningii were tested for their effectiveness in controlling Meloidogyne javanica eggs and juveniles in the laboratory and on eggplant cv ‘Yalon Data’. A thousand juveniles were placed in 12 petridishes and extracts of P. thonningii (Crude extracts, 5 ml dilution and 10 ml dilution of the crude extracts) were dispensed into the petridishes. One thousand eggs of the M. javanica were placed in 12 petridishes and treated with the same extracts used on the juveniles. For the field experiment, 12 plots of size 2m x2m were prepared and planted with nine plants of eggplant cv ‘Yalon Data’. Seedlings of eggplants were transplanted after three weeks in the nursery to the field into holes drenched with 10 ml of the extracts used in the laboratory tests. Subsequent applications of extracts were done weekly for eight weeks. The results showed that the crude extract was the most effective against both the eggs (87.43 % hatch inhibition) and juveniles (90.23 % mortality). In the field, eggplants treated with the crude extract recorded the tallest plants ((124.78 cm -2017 and 125.00 cm-2018), highest number of fruits/plant (18.51-2017 and 19.55-2018), highest yield (50.45t/ha-2017 and 53.78t/ha-2018) and the lowest galling indices and final nematode population. It is therefore concluded that the crude extract of P. thonningii can be employed for the control of M. javanica in the field.

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Efficacy of Some Botanical Extracts on Root-Knot Nematode (Meloidogyne incognita) Egg- Hatch and Juvenile Mortality in vitro

Cited by 3 publications

References 13 publications

Nematicidal Effect of Some Botanical Extracts for the Management of Meloidogyne incognita and on Growth of Tomato

Nematicidal Effect of Some Botanical Extracts for the Management of Meloidogyne incognita and on Growth of Tomato

Integrated management of Meloidogyne incognita on tomato using combinations of abamectin, Purpureocillium lilacinum, rhizobacteria, and botanicals compared with nematicide

Efficacy of Leaf Extract of Piliostigma Thonningii for Control of Root-Knot Nematode (Meloidogyne javanica) on Eggplant

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