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KEANEKARAGAMAN JAMUR ENTOMOPATOGEN PADA RHIZOSFER 9 GENOTIP TANAMAN SORGUM (Sorghum bicolor L.) UNTUK MEMINIMALISIR SERANGAN HAMA ULAT GRAYAK (Spodoptera frugiperda)

Sari, Rani Maya (2019) KEANEKARAGAMAN JAMUR ENTOMOPATOGEN PADA RHIZOSFER 9 GENOTIP TANAMAN SORGUM (Sorghum bicolor L.) UNTUK MEMINIMALISIR SERANGAN HAMA ULAT GRAYAK (Spodoptera frugiperda). Bachelors Degree (S1) thesis, University of Muhammadiyah Malang.

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Abstract

The production of sorghum is still very low especially at the farmers in east java only around 1 ha t/ (Batan, technology 2013). One of the factors causing this low production among others is the attack of plant-disturbing organism especially from insect groups which results in a high loss of yield. Pest are animals that distrub or damage plants so that their growth and develoment is distrupted. Pest can damage plants directly or indirectely. Relevant pest attacks involve biotic factors to attack plants from the nursery phase to harverst index. The pests that attack sorghum plants during cultivation one of them is the fall army worm spodoptera frugiperda. Spodoptera frugiperda. Spodoptera frugiperda (lepidoptera: Nuctuidae) is one of the pest species that damages sorghum plants in the vegetative phase. This is becaus spodoptera frugiperda is a pest that has a polyphag diet. The purpose of this study wa to determine the diversity of entomopathogenic fungi in isolation fromthe rhizosphere 9 genotypes of sorghum plants (sorghum bicolor L.) and knowing the effectiveness of entomopatogenic fungi in rhizosphere isolation 9 of the genotype of sorghum plants (Sorghum bicolor L.) In suppressing the attack of fall army worm (Spodoptera frugiperda). Research in the field was carried out at the Eprimental Garden of Merdeka University, Pasuruan located in Purur Rejo Village, Purworejo District , Pasuruan City. Research in the laboratory was carried out in the agrotchnologi laboratory of the University of Muhammadiyah Malang. Research time in the field starting September 1, 2018 until December 2, 2018. While the research in the laboratory is carried out from january 7, 2019 to june 4, 2019. The most effective entomophatogenic fungi to suppress the attact of armyworm (Spodoptera frugiperda) pest for 4 days with a percentage of 100% mortality in carterpillar 1A and 4B caterpillar using the fishing method. With changes in dietary patterns in the 1A caterpillar sample the peak is the 3rd day in the morning while dietary changes in caterpillar 4B samples peaked on day 5 in the morning. As well as the change in the color of the caterpillar skin to black in the caterpillar sample 1A and caterpillar 4B on the 3rd day in the morning. The entomophatogenic fungus microbes applied to the sample caterpillar is the Beauveria bassiana fungus with the density of the attached spores whuch is in the caterpillar sample 1A 1.955 × 10 and the spore density of the sample 4B 7.77 × 10. Thus is the same as using a dilutiin method that is for 4 days with the percentage of 100% caterpillar death on 4A P3 soil and there was a change in diet in the 4A P3 soil sample peak day 3 in the morning and the discolaration of the caterpillar skin turned black on the 3rd day in the morning. The entomopathogenic fungus microbes applied to the caterpillar of this sample is the Penicillium sp fungus with an attached spore density of 4,195 × 10.

Item Type: Thesis (Bachelors Degree (S1))
Student ID: 201510200311137
Thesis Advisors: Dian Indratmi (0005086603), Erfan Dhani Septia( 0705098902)
Keywords: Entomopatogen, Aspergilus sp, Beauveria bassiana, Fusariun sp, Penicillium sp, Entomophthora sp, mortality, Spodoptera frugiperda
Subjects: S Agriculture > S Agriculture (General)
S Agriculture > SB Plant culture
Divisions: Faculty of Agriculture and Animal Husbandry > Department of Agrotechnology (54211)
Depositing User: 201510200311137
Date Deposited: 24 Aug 2019 03:52
Last Modified: 24 Aug 2019 03:52
URI : http://eprints.umm.ac.id/id/eprint/51779

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