Ningrum, Retno Widya (2024) Eksplorasi dan Uji Patogenesitas Beauveria bassiana (Bals.) Vuill. (Hypocrales: Cordycipitaceae) terhadap Ulat Grayak (Spodoptera litura F.). Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Armyworm (Spodoptera litura) is a pest that can attack a variety of hostplants. S. litura has a chewing bite mouth type and the phase that causes the mostdamage is instar 2, if no control is done then S. litura can cause damage up to 80%or cause crop failure. Control of S. litura still relies on chemical pesticides, this canhave negative effects in the long term so alternative control is needed. Beauveriabassiana is an entomopathogenic fungus found in soil and has been studied to be ableto control various types of insects at almost all stages of insects, including larvae andimago. The purpose of this study was to determine the effectiveness of B. bassianafungus in controlling S. litura. The method used was the spore density level of 106,107, 108conidia/ml and the type of isolate B1 (isolate origin from Pacet) and B2(isolate origin from Trawas), while the observation parameters were mortality rateand feeding rate. The results obtained were the treatment of isolate B1 at a sporedensity of 108conidia/ml was able to cause the highest mortality of 90% while therate of feeding power of isolate B1 treatment with a spore density of 108conidia/mlwas able to reduce the appetite of S. litura most effectively.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | S Agriculture > S Agriculture (General) | ||||||||||||
| Divisions: | Faculty of Agriculture > Departement of Agritechnology | ||||||||||||
| Depositing User: | Retno Widya Ningrum | ||||||||||||
| Date Deposited: | 05 Jun 2024 05:23 | ||||||||||||
| Last Modified: | 05 Jun 2024 05:23 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/23836 |
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