NAJMI, NOVI NAFISAH (2023) UJI TOKSISITAS BEBERAPA KONSENTRASI EKSTRAK UMBI GADUNG (Dioscorea hispida Dennst.) TERHADAP ULAT GRAYAK (Spodoptera litura Fabr.) (Lepidoptera: Noctuidae) DI LABORATORIUM. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Spodoptera litura is the one of an important pests that causes high enough damage in both quality and quantity if not controlled. Mustard plant yield losses because of S. litura attack up to 85%. Dioscorea hispida is a type of tuber plant that contains active compounds that are toxic to pests, it has the potential to be used as a vegetable pesticide to control S. litura. This study was conducted to test and know the effect of toxicity of gadung tuber extract on S. litura. This study was conducted in August – December 2022 in the Plant Health Laboratory, Faculty of Agriculture, University of Pembangunan Nasional “Veteran” East Java. The design of study is done with a complete random design consisting of 10 treatments, each treatment was repeated three times. The data were analyzed with analysis of variance and Tukey HSD with a 5% confidence level using R studio. The fastest time of death results occurs on the second day at 4 hours after the application of 9% and 10% concentration. The highest mortality occurred at 9% and 10% concentrations with 100% mortality. The lowest Lt50 occurred at 10% concentration for 25,4 hours. The Lc50 and Lc95 values were 5,49% and 9,71%.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | S Agriculture > SB Plant culture > SB950-989 Pest Control and Treatment of Diseases, Plant Protection | ||||||||||||
| Divisions: | Faculty of Agriculture | ||||||||||||
| Depositing User: | Novi Nafisah Najmi | ||||||||||||
| Date Deposited: | 05 Jun 2023 02:18 | ||||||||||||
| Last Modified: | 05 Jun 2023 02:18 | ||||||||||||
| URI: | http://repository.upnjatim.ac.id/id/eprint/14406 |
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