?url_ver=Z39.88-2004&rft_id=2117061028+&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=UJI+BIOINSEKTISIDA+EKSTRAK+AIR+DAN+EKSTRAK+METANOL+Gracilaria+sp.+TERHADAP+Aedes+aegypti+MENGGUNAKAN+METODE+SPRAY++&rft.creator=Widya+Ratna+%2C+Pertiwi&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=570+Biologi&rft.description=Upaya++pengendalian++vektor++DBD++telah++banyak++dilakukan%2C++salah++satunya+menggunakan+insektisida+kimiawi.+Namun%2C+penggunaan+insektisida+kimiawi+dalam+jangka++waktu++panjang++dapat++menimbulkan++bahaya++ke++lingkungan++serta+menyebabkan++resistensi++nyamuk++terhadap++insektisida++karena++mengandung++bahan+aktif+kimia+seperti+transfluthrin.+Oleh+karena+itu%2C+penggunaan+insektisida+kimiawi+dapat++digantikan++dengan++bioinsektisida++yang++berasal++dari++rumput++laut++Gracilaria+sp..++Gracilaria++sp.++mempunyai++kandungan++metabolit++sekunder++berupa++alkaloid%2C+flavonoid%2C+terpenoid%2C+steroid%2C+saponin%2C+dan+tanin+yang+dapat+bersifat+toksik+terhadap+serangga.+Tujuan+penelitian+ini+adalah+untuk+mengetahui+efektivitas+ekstrak+air+dan+ekstrak++metanol++Gracilaria++sp.++terhadap++mortalitas++nyamuk++Ae.++aegypti++serta+mengetahui++nilai++LC50++ekstrak++air++dan++ekstrak++metanol++Gracilaria++sp.++sebagai+bioinsektisida.++Penelitian++ini++dilakukan++secara++eksperimental++menggunakan+Rancangan++Acak++Kelompok++(RAK)++dengan++7++perlakuan++yang++terdiri++dari++3+konsentrasi+(10%25%2C+15%25%2C+dan+20%25)+ekstrak+air+dan+ekstrak+metanol+Gracilaria+sp%2C+dan++transfluthrin++sebagai++kontrol++positif%2C++serta++dilakukan++3++kali++ulangan+menggunakan+metode+spray.+Analisis+One+Way+ANOVA+menunjukkan+perbedaan+signifikan+terhadap+jumlah+kematian+nyamuk+dengan+nilai+p-value+%3D+0%2C00+(P%E2%89%A40%2C05).+Uji++LSD++menunjukkan++perbedaan++signifikan++antara++ekstrak++air++Gracilaria++sp.+konsentrasi+20%25+terhadap+ekstrak+air+Gracilaria+sp.+konsentrasi+10%25%2C+15%25%2C+ekstrak+metanol+Gracilaria+sp.+konsentrasi+10%25%2C+15%25%2C+dan+20%25%2C+serta+transfluthrin.+Nilai+LC50+pada+ekstrak+air+Gracilaria+sp.+diperoleh+sebesar+33%2C01%25%2C+sedangkan+ekstrak+metanol+Gracilaria+sp.+sebesar+22%2C96%25.+Ekstrak+air+Gracilaria+sp.+konsentrasi+15%25+dan+20%25+serta+ekstrak+metanol+Gracilaria+sp.+konsentrasi+10%25%2C+15%25%2C+dan+20%25+tidak+efektif+digunakan+sebagai+bioinsektisida+dan+memiliki+potensi+yang+rendah+sebagai+bioinsektisida++karena++hanya++mampu++membunuh++nyamuk++Ae.++aegypti++sebesar+13%2C33%25+-+40%25.+%0D%0AKata+kunci+%3A+DBD%2C+Ae.+aegypti%2C+Bioinsektisida%2C+dan+Gracilaria+sp.%0D%0A%0D%0A%0D%0AMany+efforts+to+control+dengue+vectors+have+been+made%2C+one+of+which+uses+chemical+insecticides.+However%2C+the+use+of+chemical+insecticides+in+the+long+term+can+cause++harm+to+the+environment+and+cause++mosquito+resistance+to+insecticides++because++they++contain++chemical++active++ingredients++such++as+transfluthrin.++Therefore%2C++the++use++of++chemical++insecticides++can++be++replaced+with++bioinsecticides++derived++from++Gracilaria++sp.++seaweed.++Gracilaria++sp.+has+secondary+metabolites+in+the+form+of+alkaloids%2C+flavonoids%2C+terpenoids%2C+steroids%2C+saponins%2C+and+tannins+that+can+be+toxic+to+insects.+The+purpose+of+this+study+was+to+determine+the+effectiveness+of+water+extract+and+methanol+extract+of+Gracilaria+sp.+on+the+mortality+of+Ae.+aegypti+mosquitoes+and+to+determine++the++LC50++value++of++water++extract++and++methanol++extract++of+Gracilaria+sp.+as+bioinsecticide.+This+study+was+conducted+experimentally+using+a+Randomized+Group+Design+(RAK)+with+7+treatments+consisting+of+3+concentrations+(10%25%2C+15%25%2C+and+20%25)+of+Gracilaria+sp.+aqueous+extracts+and++methanol++extracts%2C++and++transfluthrin++as++a++positive++control%2C++and++3+replicates++using++the++spray++method.++One++Way++ANOVA++analysis++showed+significant+differences++in+the++number+of++mosquito+deaths+with+a+p-value+%3D+0%2C00++(P%E2%89%A40%2C05).++LSD++test++showed++significant++differences++between++aqueous+extract++of++Gracilaria++sp.++concentration++20%25++against++aqueous++extract++of+Gracilaria+sp.+concentration+10%25%2C+15%25%2C+methanol+extract+of+Gracilaria+sp.+concentration+10%25%2C+15%25%2C+and+20%25%2C+and+transfluthrin.+The+LC50+value+of+the+aqueous++extract++of++Gracilaria++sp.++was++obtained++at++33%2C01%25%2C++while++the+methanol++extract++of++Gracilaria++sp.++was++22%2C96%25.++The++aqueous++extract++of+Gracilaria+sp.+concentrations+of+15%25+and+20%25+and+the+methanol+extract+of+Gracilaria++sp.++concentrations++of++10%25%2C++15%25%2C++and++20%25++are++not++effective++as+bioinsecticides+and+have++low+potential+as+bioinsecticides++because+they+can+only+kill+Ae.+aegypti+mosquitoes+by+13%2C33%25+-+40%25.%0D%0AKeywords+%3A+DHF%2C+Ae.+aegypti%2C+Bioinsecticide%2C+and+Gracilaria+sp.+&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2025-02-11&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F84351%2F1%2FABS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