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dc.contributor.adviserSeredrica, Ma. Victoria C.
dc.contributor.authorBonito, Joshua C.
dc.date.accessioned2021-07-13T00:48:12Z
dc.date.available2021-07-13T00:48:12Z
dc.date.issued2019
dc.identifier.citationBonito, J. C. (2019). Efficacy of lemongrass (Cymbopogon citratus DC. Stapf) extract against banana corm weevil (Cosmopolites sordidus Germar) (Unpublished Special paper). Central Philippine University, Jaro, Iloilo City.en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12852/1182
dc.descriptionAbstract onlyen_US
dc.description.abstractThis study was conducted at the College of Agriculture, Resources, and Environmental Sciences laboratory room, Central Philippine University, Jaro, Iloilo City from August 13 to 18, 2019. This study aimed to determine the efficacy of lemongrass (Cymbopogon citratus DC. Stapf) extract against banana corm weevil (Cosmopolites sordidus Germar). Specifically, the study was conducted to determine the mortality percentage of banana corm weevils, and LC50 and LC90 values of lemongrass extract. The experimental treatments were composed of lemongrass extract at 20, 40, 60, 80 and 100 % concentrations. Synthetic insecticide was used as positive control while distilled water served as negative control. These treatments were laid-out in a completely randomized design (CRD) with three replications. Earliest signs of toxicity were observed on corm weevils in the positive control with 100 % mortality 24 hours after the introduction of the treatment. On the other hand, weevils on the negative control sturdily survived for 120 hrs. The differences among the treatment means were highly significant (P<0.01). The 100 % LE was found to be the most effective among the different LE concentrations following the positive control 24 to 48 hours after introduction. It was then observed to be comparable to the positive control 72 to 120 hours after introduction with 100 % mortality. On the other hand, the computed LC50 value was at 89 % while, the LC90 value was at 90 % LE. This means that 89 and 90 % LE concentration can kill 50 and 90 % banana corm weevil population, respectively. Based on the results of the study, the lemongrass is effective in controlling banana corm weevil.en_US
dc.format.extentxi, 31 leavesen_US
dc.language.isoenen_US
dc.subject.ddcFilipiniana Theses 630.72 B642en
dc.subject.lcshBanana root boreren_US
dc.subject.lcshBanana root borer--Controlen_US
dc.subject.lcshLemongrassen_US
dc.subject.lcshPlant extractsen_US
dc.subject.lcshBotanical pesticidesen_US
dc.subject.lcshBotanical insecticidesen_US
dc.subject.lcshBotanical pesticides--Evaluationen_US
dc.subject.lcshBotanical insecticides--Evaluationen_US
dc.titleEfficacy of lemongrass (Cymbopogon citratus DC. Stapf) extract against banana corm weevil (Cosmopolites sordidus Germar)en_US
dc.typeSpecial paperen_US
dc.description.bibliographicalreferencesIncludes bibliographical referencesen_US
dc.contributor.chairCabarles, Jaime C. Jr.
dc.contributor.committeememberPatricio, Hope G.
dc.contributor.departmentCollege of Agriculture, Resources and Environmental Sciencesen_US
dc.description.degreeBachelor of Science in Agricultureen_US
local.subject.scientificnameCymbopogon citratusen_US
local.subject.scientificnameCosmopolites sordidusen_US


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