?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=UJI+DAYA+BUNUH+Bacillus+thuringiensis+TERHADAP+TINGKAT%0D%0A%0D%0AMORTALITAS+LARVA+Bactrocera+dorsalis&rft.creator=SITI+%2C+AMANDA+ANISATUZ+ZAHRA&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=570+Biologi&rft.description=Bactrocera+dorsalis+merupakan+salah+satu+jenis+dari+lalat+buah+yang+menjadi+hama%0D%0Apengganggu+tanaman+holtikultura+dan+dapat+menurunkan+kualitas+buah+serta+hasil%0D%0Apanen.+Serangan+dari+lalat+buah+ini+dapat+menyebabkan+kerusakan+pada+buah%0D%0Asehingga+menurunkan+kualitas+dan+juga+hasil+panen.+Upaya+dalam+menekan%0D%0Aserangan+lalat+buah+dengan+menggunakan+insektisida+kimia+berpotensi+merusak%0D%0Alingkungan+karena+residunya+akan+mencemari+lingkungan+dan+dapat+mengganggu%0D%0Akesehatan+konsumen.+Oleh+karena+itu%2C+diperlukan+alternatif+untuk+menekan+atau%0D%0Amenghindari+penggunaan+insektisida+kimia.+Penggunaan+agen+hayati+dapat%0D%0Amenjadi+alternatif+untuk+menghindari+penggunaan+insektisida+kimia+dan+menekan%0D%0Aserangan+B.+dorsalis%2C+yaitu+dengan+memanfaatkan+Bacillus+thuringiensis.+Tujuan%0D%0Adari+penelitian+ini+adalah+mengetahui+isolat+yang+paling+baik+dalam+membunuh%0D%0Alarva+B.+dorsalis+serta+mengetahui+tingkat+mortalitas+larva.+Rancangan+penelitian%0D%0Ayang+digunakan+adalah+Rancangan+Acak+Lengkap+(RAL).+Jenis+isolat+bakteri%0D%0Ayang+digunakan+sebanyak+5+isolat+yaaitu+Bt1TBA4%2C+Bt2TMA26%2C+Bt3BP14%2C+Bt4TSR6%2C+dan%0D%0ABt5TB5+dengan+konsentrasi+yang+digunakan+adalah+80%25.+Penelitian+ini%0D%0Amenggunakan+kontrol+negatif+dengan+aquades+steril+dan+kontrol+positif%0D%0Amenggunakan+insektisida+Curacron+500+EC.+Parameter+yang+diamati+pada%0D%0Apenelitian+ini+adalah+isolat+B.+thuringiensis+yang+memiliki+daya+bunuh+paling%0D%0Aefektif+terhadap+larva+dan+persentase+tingkat+mortalitas+larva.+Data+mortalitas%0D%0Alarva+dianalisis+menggunakan+uji+Analysis+of+Variance+(ANOVA)+dan+diuji+lanjut%0D%0Adengan+uji+Duncan.+Hasil+penelitian+menunjukkan+isolat+Bt1TBA4+menghasilkan%0D%0Apersentase+mortalitas+sebesar+60%25.+Sementara+itu%2C+isolat+Bt2TMA26+dan+Bt3BP14%0D%0Amenghasilkan+persentase+mortalitas+sebesar+46.6%25.+Pada+isolat+B.+thuringiensis%0D%0Ayang+digunakan+seluruh+isolat+memiliki+daya+bunuh+terhadap+larva+B.+dorsalis.%0D%0AKata+Kunci%3A+Bacillus+thuringiensis%2C+Bactrocera+dorsalis%2C+pengendalian+hama%2C+uji%0D%0A%0D%0Adaya+bunuh%2C+mortalitas+larva.%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AKILLING+POWER+TEST+OF+Bacillus+thuringiensis+ON+MORTALITY%0D%0A%0D%0ARATE+OF+Bactrocera+dorsalis+LARVES%0D%0A%0D%0ABy%0D%0A%0D%0ASITI+AMANDA+ANISATUZ+ZAHRA%0D%0A%0D%0ABactrocera+dorsalis+is+one+type+of+fruit+fly+that+is+a+pest+of+horticultural+crops+and%0D%0Acan+reduce+fruit+quality+and+yield.+The+attack+of+this+fruit+fly+can+cause+damage+to%0D%0Athe+fruit%2C+thus+reducing+the+quality+and+yield+of+the+crop.+Efforts+to+suppress+fruit+fly%0D%0Aattacks+using+chemical+insecticides+have+the+potential+to+damage+the+environment%0D%0Abecause+the+residue+will+pollute+the+environment+and+can+interfere+with+consumer%0D%0Ahealth.+Therefore%2C+alternatives+are+needed+to+suppress+or+avoid+the+use+of+chemical%0D%0Ainsecticides.+The+use+of+biological+agents+can+be+an+alternative+to+avoid+the+use+of%0D%0Achemical+insecticides+and+suppress+the+attack+of+B.+dorsalis%2C+namely+by+utilizing%0D%0ABacillus+thuringiensis.+The+purpose+of+this+study+was+to+determine+the+best+isolate%0D%0Ain+killing+B.+dorsalis+larvae+and+to+determine+the+level+of+larval+mortality.+The%0D%0Aresearch+design+used+was+a+completely+randomized+design+(CRD).+The+types+of%0D%0Abacterial+isolates+used+were+5+isolates%2C+namely+Bt1TBA4%2C+Bt2TMA26%2C+Bt3BP14%2C+Bt4TSR6%2C%0D%0Aand+Bt5TB5+with+the+concentration+used+was+80%25.+This+study+used+negative+control%0D%0Awith+sterile+distilled+water+and+positive+control+using+Curacron+500+EC+insecticide.%0D%0AThe+parameters+observed+in+this+study+were+B.+thuringiensis+isolates+that+had+the%0D%0Amost+effective+killing+power+against+larvae+and+the+percentage+of+larval+mortality%0D%0Arate.+Larval+mortality+data+were+analyzed+using+Analysis+of+Variance+(ANOVA)%0D%0Atest+and+further+tested+with+Duncan+test.+The+results+showed+that+isolate+Bt1TBA4%0D%0Aproduced+a+mortality+percentage+of+60%25.+Meanwhile%2C+isolates+Bt2TMA26+and+Bt3BP14%0D%0Aproduced+a+mortality+percentage+of+46.6%25.+In+the+B.+thuringiensis+isolates+used%2C+all%0D%0Aisolates+have+killing+power+against+B.+dorsalis+larvae.%0D%0A%0D%0AKeywords%3A+Bacillus+thuringiensis%2C+Bactrocera+dorsalis%2C+pest+control%2C+killing+power%0D%0Atest%2C+larval+mortality.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2024-07-05&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F85315%2F1%2FAbstrak%2520-%2520Siti%2520Amanda%2520Anisatuz%2520Zahra.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F85315%2F2%2FSkripsi%2520Siti%2520Amanda%2520Full%2520tanpa%2520lampiran%2520-%2520Siti%2520Amanda%2520Anisatuz%2520Zahra.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F85315%2F3%2FSkripsi%2520Siti%2520Amanda%2520tanpa%2520Pembahasan.%2520-%2520Siti%2520Amanda%2520Anisatuz%2520Zahra.pdf&rft.identifier=++SITI+%2C+AMANDA+ANISATUZ+ZAHRA++(2024)+UJI+DAYA+BUNUH+Bacillus+thuringiensis+TERHADAP+TINGKAT+MORTALITAS+LARVA+Bactrocera+dorsalis.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F85315%2F