Evaluation of Jatropha curcas as Potential Biocide and Biopesticide

Sharma, Neha

doi:10.20546/ijcrbp.2017.406.011

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…Extracts derived from the leaves, stems, roots, and seeds of J. curcas exhibit diverse properties for pest (Table 1) and disease (Table 2) control in plants. The efficacy of J. curcas extracts as a biocide has been confirmed in various studies (Sharma, 2017;Ogbebor et al, 2007;Adebowake and Adedire, 2006) and their application is a useful alternative from an agronomic perspective, considering resistance of some pests and pathogens to synthetic insecticides and fungicides. Integrated management programs have encouraged this alternative control measure to minimize ecological damage found in ecosystems since natural products are innocuous to the environment (Trivedi et al, 2018;Patil et al, 2016).…”

Section: Pests and Diseases Controlled By Extracts Of J Curcasmentioning

confidence: 85%

“…Whereas the biocides though quickly degraded in the environment (Moragas and Schneider, 2003). Plant-derived biocides clearly provide bioactive substances for integrated pest and disease management programs, and they may reduce undesirable effects from application of organo-synthetic products in the environment (Sharma, 2017;Ashraf et al, 2014). They have even greater specificity for target organisms (Sharma, 2017;Ashraf et al, 2014) and have lower production cost, making the final product economically feasible for small farmers.…”

Section: Journal Of Biology and Life Sciencementioning

confidence: 99%

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Biocide Potential of Jatropha curcas L. Extracts

Muniz¹,

Zaidan²,

Dias³

et al. 2020

JBLS

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Jatropha curcas L., a multipurpose oilseed plant, is very important for biodiesel production; it also has a wide range of bioactive compounds with medicinal properties and biocidal activity for control of crop pests and diseases. This review presents the state-of-the-art of the biocidal activity of J. curcas extracts. Chemical constituents such as phorbol esters are responsible for high bioactivity of J. curcas, due to their toxicity to humans and animals and to their high fungicidal and insecticidal activity. The fungicidal activity of these constituents may be due to destroy endoplasmatic reticulum and hyphae cell walls. The activity of these compounds on insect pest metabolism is well known, leading to an antifeedant effect, repellency, mating inhibition, oviposition inhibition or suppression and/or induction of infertile egg production, and inhibition of larva, nymph, and pupa development. Several studies have shown that although all organs of J. curcas plant are toxic, the degree of toxicity varies in accordance with the extract formulation, the nature of the active substance, the administration rate and procedure, and the individual sensitivity of pests and diseases. Thus, J. curcas stands out as a promising species for bioenergy purposes, as well as for control of pests and diseases that affect agriculture production.

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Section: Pests and Diseases Controlled By Extracts Of J Curcasmentioning

confidence: 85%

Section: Journal Of Biology and Life Sciencementioning

confidence: 99%

Biocide Potential of Jatropha curcas L. Extracts

Muniz¹,

Zaidan²,

Dias³

et al. 2020

JBLS

View full text Add to dashboard Cite

show abstract

“…ese facilitate the termites to attack such support trees [60]. Absence of termites attack on pepper plants trained on Jatropha is possibly due to high bioactivity of Jatropha oil attributed to the presence of antifungal/pesticidal compounds (phorbol esters) in the stem, root, and bark [61].…”

Section: Causal Agent(s) Of Stem Wiltingmentioning

confidence: 99%

Establishment of the Causal Agent(s) of Spike Shedding and Stem Wilting of Pepper (Piper nigrum L.) in Morogoro District, Tanzania

Shango

Majubwa

Maerere

2020

Advances in Agriculture

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Pepper (Piper nigrum L.) serves as a source of income to smallholder spice farmers in Morogoro district of Tanzania. Recently, spike shedding and stem wilting of pepper plants were reported to cause about 30% yield loss of the crop. This study was undertaken to identify the causal agent(s) of the problems. Three pepper gardens in each of the four hamlets (Nyange, Doga, Tandai, and Lukenge) in Tandai village (Kinole ward) were surveyed, and plant tissue and soil samples were collected for laboratory analysis. An experiment was laid out in a randomized complete block design with three replications. Pepper cultivars, Babu kubwa, Babu ndogo, Babu kati, and Ismailia grown in the study area, were used as treatments for evaluation of the prevalence of spike shedding and stem wilting. Treatments mean separation was conducted based on Duncan’s multiple range test at p = 0.05 . Regression (R2) and simple correlation (r) analyses between stem wilting (incidence and severity) and termite pest infestation were performed. The identified pathogen in most of the soil and plant tissue samples was Fusarium oxysporum. The nutrients, N, P, Mg, and Cu, concentration in soil and leaf samples was below the optimal ranges. Termite attacks were significantly high in some farmer’s gardens where up to 50.5% of the pepper plants was damaged. Hence, a significant positive correlation was observed between termite pest infestation in gardens and both incidence (r = 0.881, R2 = 0.74, p < 0.001 ) and severity of stem wilting (r = 0.918, R2 = 0.84, p < 0.001 ) of pepper plants. Most of the termite attacks and damages (70%) were observed on pepper plants supported on silver oak, unlike those trained on Jatropha. A higher percentage of undeveloped berries (36%) and intermediate-size berries (34%) was recorded on cultivars “Babu kati” and “Babu kubwa,” respectively. Multiple factors have been associated to be the causes of spike shedding and stem wilting of pepper, which could be used to develop appropriate control solutions useful to farmers. Confirmation of F. oxysporum pathogenicity is recommended. A comprehensive study is suggested on the repellent or lethal activities of Jatropha against F. oxysporum and termites. Furthermore, studies through field experiments are needed to generate site-specific soil nutrient improvement recommendations and design an integrated approach to control F. oxysporum and termites and to determine existing alternative host plants for these pests.

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Evaluation of Jatropha curcas as Potential Biocide and Biopesticide

Cited by 2 publications

References 29 publications

Biocide Potential of Jatropha curcas L. Extracts

Biocide Potential of Jatropha curcas L. Extracts

Establishment of the Causal Agent(s) of Spike Shedding and Stem Wilting of Pepper (Piper nigrum L.) in Morogoro District, Tanzania

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