Arab Journal of Plant Protection最新文献

{"title":"Effect of Eucalyptus globulus Oil on Growth of The Fungal Pathogen Fusarium oxysporum f. sp. albedinis, The Causal Agent of Date Palm Bayoud Disease in the Laboratory","authors":"Asmaa Noueichi,, Sleih Chibani, Ammar Othmani, Mariam Boukbach, Wadad Abdelaziz, Rima Mona","doi":"10.22268/ajpp-41.3.281284","DOIUrl":"https://doi.org/10.22268/ajpp-41.3.281284","url":null,"abstract":"Noueichi, A., S. Chibani, A. Othmani, M. Boukbach, W. Abdelaziz and R. Mouna. 2023. Effect of Eucalyptus globulus Oil on Growth of The Fungal Pathogen Fusarium oxysporum f. sp. albedinis, The Causal Agent of Date Palm Bayoud Disease in the Laboratory. Arab Journal of Plant Protection, 41(3): 281-284. https://doi.org/10.22268/AJPP-41.3.281284 Fusarium disease of date palm caused by Fusarium oxysporum f. sp. albedinis, commonly known as Bayoud disease, is a serious threat to date palm cultivation in North African countries including Algeria. The inhibitory activity of eucalyptus oil (Eucalyptus globulus) was evaluated in the Plant Biology Laboratory at the University of Constantine, Algeria. The results obtained showed significant inhibition of fungal growth which varied between 17 and 60% based on the concentration used. The pathogen inhibitory effect was mainly due to the presence of monoterpene compounds which have a strong inhibiting property against fungi. The results obtained suggest that Eucalyptus essential oil is potentially a safe and effective alternative to chemical fungicides, but field evaluation for its ability to control date palm Bayoud disease is essential before recommending its use in farmers’ fields. Keywords: Date palm, Fusarium oxysporum f.sp. albedinis, essential oil, Eucalyptus globulus","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135736531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pathogenicity of the Fungus Beauveria bassiana and Cladosporium sp. on Different Life Stages of the Two Spotted Spider Mite, Tetranychus urticae Koch Under Laboratory Conditions","authors":"Alissar Shaabow, Amal Haj Hassan","doi":"10.22268/ajpp-41.3.314320","DOIUrl":"https://doi.org/10.22268/ajpp-41.3.314320","url":null,"abstract":"Shaabow, A. and A. Haj Hassan. 2023. Pathogenicity of the Fungus Beauveria bassiana and Cladosporium sp. on Different Life Stages of the Two Spotted Spider Mite, Tetranychus urticae Koch Under Laboratory Conditions. Arab Journal of Plant Protection, 41(3): 314-320. https://doi.org/10.22268/AJPP-41.3.314320 This study was carried out in the entomology laboratory of the Agricultural Scientific Research Center in Lattakia, Syria, to evaluate and compare the effect of local isolates of the entomopathogenic fungus Beauveria bassiana and two isolates of the fungus Cladosporium spp. on different life stages of the two-spotted spider mite Tetranychus urticae during October 2021.Conidial suspension for each fungal isolate were applied at a concentration of 1×107 conidia/ml, on the different stages of mites (adults, nymphs, eggs), using the direct spraying method. The effects of each isolate were significantly different between stages. The results obtained showed that the most affected stage was the adults stage, with a death rate of 100% when treated with B. bassiana isolate, whereas it reached 72.5 and 58.5% when the two isolates of Cladosporium sp. were used. The egg stage was less sensitive to infection with fungi, where the death rate reached 59% for one of the two isolates of Cladosporium sp., 45.13% for the second isolate and 38.25% for the B. bassiana isolate. The half lethal time (LT50) was 3.82 days for the B. bassiana isolate on the adults stage, whereas isolate 2 of Cladosporium spp. was more effective on nymph and egg stages, with LT50 reached 7.77 and 8.68 days, respectively. Keywords: Tetranychus urticae, biological control, Beauveria bassiana, Cladosporium spp","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135736534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parasitoid Wasps of Green Lacewing, Chrysoperla carnea in Cotton Fields in Hama Governorate, Syria: New Records and Some Biological Aspects","authors":"Mounir Nabhan, Ziad Shiekh Khamis, Baraah Hawis","doi":"10.22268/ajpp-41.3.306313","DOIUrl":"https://doi.org/10.22268/ajpp-41.3.306313","url":null,"abstract":"Nabhan, M., Z.Sh. Khamis and B. Hawis. 2023. Parasitoid Wasps of Green Lacewing, Chrysoperla carnea in Cotton Fields in Hama Governorate, Syria: New Records and Some Biological Aspects. Arab Journal of Plant Protection, 41(3): 306-313. https://doi.org/10.22268/AJPP-41.3.306313 This study aimed to identify parasitoid species of Chrysoperla carnea stages, and to evaluate their effect on predator’s population in the field. Three hymenopteran parasitoid species of this predator were collected and identified. Telenomus acrobates Giard (Hymenoptera: Scelionidae) was found to parasitize the eggs, and was previously recorded in northern Syria. Two other species parasitized the larva-pupa stage of the predator, and are recorded for the first time in Syria in this study. The first species is Baryscapus chrysopae (Crawford, 1915) (Hymenoptera: Eulophidae), which showed a parasitism rate of 23.08% and 28.75% of the total collected eggs in 2017 and 2018 seasons, respectively, and 2-14 parasitoids individuals (males and females) emerged from each pupa. The second species was Perilampus chrysopae (Crawford, 1914) (Hymenoptera, Perilampidae), which showed a parasitism rate of 5.13% and 23.81% of the total larvae collected in the two seasons, respectively, and one parasitoid individual (male or female) emerged from each pupa. Keywords: Chrysoperla carnea, Baryscapus chrysopae, Perilampus chrysopa, Telenomus acrobates, new record, Syria","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135736522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Mutating Effect of Microwave Irradiation on Spores and Crystal Protein Formation of Iraqi Bacillus thuringiensis kurstaki KS3","authors":"Khlood Abedalelah Alkhafaji, Falah Hanash Nahar, Samira Auda Khlaywi, Mohammed Abedalrahem Abedalla, Ahmed Jaafar Feaath, Ameera Alwan Mezban, Sabreen Abedalhadi Saleh","doi":"10.22268/ajpp-041.3.285291","DOIUrl":"https://doi.org/10.22268/ajpp-041.3.285291","url":null,"abstract":"Alkhafaji, K.A., F.H. Nahar, S.A. Khlaywi, M.A. Abedallah, A.J. Feaath, A.A. Mezban. and S.A. Saleh. 2023. The Mutating Effect of Microwave Irradiation on Spores and Crystal Protein Formation of Iraqi Bacillus thuringiensis kurstaki KS3. Arab Journal of Plant Protection, 41(3): 285-291. https://doi.org/10.22268/AJPP-041.3.285291 Bacillus thuringiensis is the most important biological control agent that is used in fields and stores against insect pests of agricultural importance. This research was conducted to study the effect of microwave radiation on sporogenesis and crystal protein production by the Iraqi bacterium B. thuringiensis KS3 strain. The bacterium was enriched by Lauria bertani broth (LB) pH 7.0 for spore formation. Spore suspension was microwave irradiated at 1000 Watt for 5, 10 and 15 seconds. Spore inactivation rate for each time period of microwave treatment was calculated and the macroscopic differences were examined. Crystal protein and spore production were estimated for irradiated and nonirradiated bacterial cultures. Viable spores in the control treatment was 3×108 viable spores/ml, and decreased after 5, 10, and 15 s of microwave treatment to 3×107 , 2×106 and 2×104 viable spores/ml, respectively. The reduction of spore viability reached to 49.263% 15 seconds after treatment. The appearance of colonies on the top of nutrient agar (NA) were almost similar with the control, with no differences in color, margin and surface of treated colonies following the three time periods treatment. Colonies with dense color, smaller in size and with straight margin appeared on congo red culture for all treatments in contrast to the control. Microscopic examination showed that treated bacilli were similar regarding their shape, diameter and arrangement, however,smaller bacterial cell size following 15 s irradiation treatment was observed. Control culture after 72 h started to form spores, whereas after 24 h, irradiated spores for 5, 10 and 15 s formed 75, 90 and 90% viable spores, respectively. Crystal protein reached the highest concentration after 72 h in control culture, whereas it varied based on treatment period. The production of viable spores from microwave irradiated isolates increased about one logarithmic cycle compared with the control culture of B. thuringiensis KS3.The peak of the UV spectrum of Crystal protein extracts was recognized at 255-280 nm and the peak of the curve indicated the protein concentration at a given wavelength. Differences were recognized in the UV light wavelength range of 220-235 nm. Keywords: Sporogenesis, Physical effect, Delta toxin.","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135736523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Taxonomic Study of Some Species of Hyperparasitoids Attacking the Primary Parasitoid Microterys nietneri of the Citricola Scale Insect, Coccus pseudomagnoliarum in Syria","authors":"Alaa Turki Saleh, Abdul Nabi Mohamad Basheer","doi":"10.22268/ajpp-41.3.292305","DOIUrl":"https://doi.org/10.22268/ajpp-41.3.292305","url":null,"abstract":"Saleh, A.T. and A.M. Basheer. 2023. A Taxonomic Study of Some Species of Hyperparasitoids Attacking the Primary Parasitoid Microterys nietneri of the Citricola Scale Insect, Coccus pseudomagnoliarum in Syria. Arab Journal of Plant Protection, 41(3): 292-305. https://doi.org/10.22268/AJPP-41.3.292305 The citricola scale insect, Coccus pseudomagnoliarum, (Kuwana) (Hemiptera: Coccomorpha: Coccidae) is an economically important pest that occurs on citrus trees along the Syrian coast. The samples of host insects and infested plant parts were collected from April to June during 2016 and 2017 from two locations (Al-Sanobar, Dabba) in Lattakia Province and brought to the Biological Control Studies and Research Center (BCSRC), Faculty of Agriculture, Damascus University. Based on the information gathered, Microterys nietneri (Motschulsky) (Hymenoptera: Encyrtidae) may play an important role as a biological control agent of citricola scale insect, but high hyperparasitoids levels reduced M. nietneri efficiency as a citricola scale parasitoid. The objective of this study was to describe and identify naturally occurring hyperparasitoids. The following parasitoids were identified and reported for the first time in Syria: Cheiloneurus claviger (Thomson), Pachyneuron muscarum (Linnaeus), and Marietta leopardine (Motschulsky). Microscopic images were provided to illustrate the morphological and morphometric characteristics of these species. Keywords: Hyperparasitoids, Citricola scale, Microterys, Syria","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135736529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Susceptibility Assessment of Two Tomato Hybrids Against Tuta absoluta Infestation Under Greenhouse Conditions","authors":"A. Abdel-Razek, N. M. Abd El-Ghany, M. Gesraha, T. Elewa, A. Moussa","doi":"10.22268/ajpp-39.4.317322","DOIUrl":"https://doi.org/10.22268/ajpp-39.4.317322","url":null,"abstract":"Abdel-Razek, A.S., N.M. Abd El-Ghany, M.A. Gesraha, T.A. Elewa and A. Moussa. 2021. Susceptibility Assessment of Two Tomato Hybrids Against Tuta absoluta Infestation Under Greenhouse Conditions. Arab Journal of Plant Protection, 39(4): 317-322. https://doi.org/10.22268/AJPP-39.4.317322 Tuta absoluta is a major insect pest which attack tomato plant varieties in Egypt. Several control attempts were carried out to avoid major crop losses by heavy application of chemical insecticides. The aim of the present study is to assess the susceptibility of infestation of T. absoluta of two tomato varieties (Shifa and Savera F1 hybrids) under greenhouse conditions. The tomato varieties were planted in two plantation periods at the district of Kom Hamada, El-Nubaria province, El-Behira Governorate. The susceptibility tests were done by random counting of leaf samples for the presence of T. absoluta mines and larvae. Both tomato varieties showed almost the same T. absoluta infestation level. Moreover, yield assessment was carried out for the two plantation periods by taking the average fruit weight yield (Kg/acre). The tomato yield results showed that Savera F1 hybrid tomato had higher yield compared to Shifa F1 hybrid variety, but such difference was not significant, However, the yield difference of both vireties between the two planting dates was significant. Keywords: Tomato, Tuta absoluta, susceptibility, leaf-mine, larvae, yield.","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42762425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnosis and Inhibition of the Virulence Factor Phaseolenone of the Pathogenic Fungus Macrophomina phaseolina Using Some Chemical and Biological Methods","authors":"Aouf Al Jbory, A. Hasan","doi":"10.22268/ajpp-039.4.252256","DOIUrl":"https://doi.org/10.22268/ajpp-039.4.252256","url":null,"abstract":"Al-Jbory, A.A.A. and A.A Hasan. 2021. Diagnosis and Inhibition of the Virulence Factor Phaseolenone of the Pathogenic Fungus Macrophomina phaseolina Using Some Chemical and Biological Methods. Arab Journal of Plant Protection, 39(4): 252-256. https://doi.org/10.22268/AJPP-039.4.252256 Results obtained in this study confirmed the efficacy of some chemical and biological factors in reducing the concentration of Phaseolenone toxin produced by the fungal pathogen Macrophomina phaseolina grown on potato dextrose broth medium. The toxin concentrations were measured in different treatments using high performance liquid chromatography (HPLC). The citric acid treatment at 5% concentration surpassed the other treatments (lactic acid, acetic acid, SDS salts, EDTA, bacterial filtrates of Pseudomonas fluorescens and Bacillus subtilis). Citric acid treatment reduced by 5% the toxin concentration to 1.74 microgram/ml compared to 6.94 microgram/ml for the control treatment. This reduction in Phaseolenone concentration was also noticed through the reduction of the area under the curve which amounted to 1.684% for the citric acid treatment compared with 6.814% for the control treatment. Keywords: Phaseolenone, Macrophomina Phaseolina, charcoal rot, mycotoxin.","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49257577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Olive Mill Wastewater of in the Control of Olive Verticillium Wilt Caused by Verticillium dahlia Kleb","authors":"Khiyam Muhrez, M. Tawil, Bassema Barhoum","doi":"10.22268/ajpp-39.4.273280","DOIUrl":"https://doi.org/10.22268/ajpp-39.4.273280","url":null,"abstract":"Muhrez, K.A., M.Z. Tawil and B. Barhoum. 2021. Effect of Olive Mill Wastewater of in the Control of Olive Verticillium Wilt Caused by Verticillium dahlia Kleb. Arab Journal of Plant Protection, 39(4): 273-280. https://doi.org/10.22268/AJPP-39.4.273280 This research aimed to evaluate the application of olive mill wastewater in controlling Verticillium dahliae the causal agent of olive wilt disease on olive trees. This study was carried out on 2 years old olive local variety (Khderi) plants planted in pots after it has been artificial inoculated with V. dahliae, and severity was recorded within 90 days. Olive mill wastewater (omww) efficacy was estimated at the end of the experiment. Severity was increased from 8.89% before treatment to 28.89% 60 days after treatment, and decreased to 13.33% 90 days after treatment with omww 450 ml/l. Disease severity increased from 11.11% before treatment to 37.78% 60 days after treatment and decreased to 35.56% 90 days after treatment with omww 300 ml/l. Whereas, disease severity increased from 17.78% before treatment to 40% 90 days after treatment with azoxystrobin compared to the inoculated control where disease severity increased from 13.33% before treatment to 100% 90 days after treatment. Omww 450 ml/l had the highest efficacy of 80% followed by azoxystrobin 70%, and omww 300 ml/l 57.33%. It can be concluded that olive mill wastewater has a potential application as a bio-fungicide for the control of olive verticillium wilt disease. Keywords: Olive mill waste waters, Verticillium dahlia, olive, Fungicide.","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41889877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Induction of Systemic Resistance in Tomato Plants Against Tomato yellow leaf curl virus in Protected Cultivation Using a Local Bacterial Isolate of Bacillus subtilis","authors":"H. Ghanem, Insaf Akel, Quosai Al-Rhayeh, I. Ismail","doi":"10.22268/ajpp-039.4.289295","DOIUrl":"https://doi.org/10.22268/ajpp-039.4.289295","url":null,"abstract":"Ghanem, H.M., E.H. Akel, Q.A. Al-Rhayeh and I.D. Ismail. 2021. Induction of Systemic Resistance in Tomato Plants Against Tomato yellow leaf curl virus in Protected Cultivation Using a Local Bacterial Isolate of Bacillus subtilis. Arab Journal of Plant Protection, 39(4): 289-295. https://doi.org/10.22268/AJPP-039.4.289295 This study was conducted at the Agricultural Scientific Research Center in Lattakia Governorate in a plastic house during the 2020/2021 growing season to evaluate the efficiency of the native bacterial isolate B.Ra.217 of Bacillus subtilis, in reducing infection of tomato plants with Tomato yellow leaf curl virus (TYLCV), by treating tomato seeds and later watering the seedlings with a suspension of the tested bacteria at a concentration of 1x109 /ml, and then measuring incidence (%) and severity of virus infection, and estimating peroxidase enzyme activity. The results showed that 30 days after inoculation with tomato leaf curl virus, a decrease in virus infection rate and severity in virus-infected and bacteria-treated plants compared with virus-infected and untreated control plants was observed. The reduction in disease incidence and severity of infection reached 26.67% and 34.28%, respectively, with significant differences between the treatments. In addition, the activity of peroxidase enzyme 7 days after infection with the virus showed an increase in plants treated with bacteria only (0.1342 μmol/mg) and those treated with bacteria and virus-infected (0.0913 μmol/mg), compared with the healthy control plants (0.0958 μmol/mg), and virus-infected and untreated with bacteria (0.0570 µmol/mg). The results also showed 15 days after infection that the enzyme activity was higher in plants treated with bacteria only (0.1592 µmol/mg) compared with the healthy control (0.1415 µmol/mg) with significant differences, and also the differences were significant with the untreated infected plants (0.1002 µmol/mg), and with inoculated and treated plants (0.1372 µmol/mg). Thus, this bacterial isolate may have an important applied role in enhancing tomato plant resistance to the virus and consequently reducing its damage. Keywords: Bacillus subtilis B.Ra.217, TYLCV, peroxidase, incidence, severity of infestation, tomato plant","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49631548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Potency of Six Medicinal Plant Extracts Against the Stored Grain Insect Pest Sitophilus granarius L.","authors":"N. Jawalkar, S. Zambare, Mohamed Izzat Al Ghannoum","doi":"10.22268/ajpp-039.4.323328","DOIUrl":"https://doi.org/10.22268/ajpp-039.4.323328","url":null,"abstract":"Jawalkar, N.B., S.P. Zambare and M.I. Al Ghannoum. 2021. The Potency of Six Medicinal Plant Extracts Against the Stored Grain Insect Pest Sitophilus granarius L. Arab Journal of Plant Protection, 39(4): 323-328. https://doi.org/10.22268/AJPP-039.4.323328 This study was conducted on six medicinal plants viz., Vitex negundo (leaves), Xanthium strumarium, Caesalpinia bonduc, Mucuna pruriens, Moringa oleifera (seed kernels), Tagetes erecta (petals) for their bio-insecticidal activity. The powders of various parts of plants were extracted using the MARS6 microwave acid digestion system. Three different concentrations (20, 30, and 40%) of plant extracts were tested against granary weevil, Sitophilus granarius L. (Coleoptera: Curculionidae) for their bio-insecticidal activities under laboratory conditions. The results of statistical analysis showed a good performance of all plant extracts, especially at the high concentrations of the extracts, where they showed different levels of insect mortality and their developmental rate was also reduced leading to significant reduction in insect numbers. The mortality rate ranged was 0-100% with S. granarius adults (p < 0.01). There was significant correlation (R=1) between mortality rate and the concentration of plant extracts. However, the extract of Mucuna pruriens with solvents (Acetone + Petroleum Ether) showed the highest mortality rate of 100% at the three concentrations used (p < 0.01), whereas, the lowest average mortality of 43.3% (p < 0.01) was observed with Xanthium strumarium and Vitex negundo extracts with solvents (Methanol + n-Hexane) compared with 0% mortality in the control. All plant extracts have revealed insecticidal as well as propitious protective effect on grains, and it can be selected as effective control treatment after proper dose formulation to prevent weevil infestation in stored grains. Keywords: Bioinsecticide, stored grains, Sitophilus granarius, mortality, medicinal plants, MARS 6.","PeriodicalId":37670,"journal":{"name":"Arab Journal of Plant Protection","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49209176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}