WALUYO, GABRIELLA CANTIKA PUTRI (2023) EFEKTIVITAS PESTISIDA ORGANIK ASAP CAIR TEMPURUNG KELAPA TERHADAP MORTALITAS WALANG SANGIT (LEPTOCORISA ORATORIUS) PADA TANAMAN PADI (ORYZA SATIVA). Undergraduate thesis, UPN VETERAN JAWA TIMUR.
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Abstract
Indonesia is a country that has the largest source of livelihood in the agricultural sector. Rice is one of the most widely cultivated food crops because more than half of the world's population makes rice a staple food crop. Walang sangit is a pest that attacks rice plants when they are ripe with milk, damages the rice grains until the fruit becomes empty because it sucks the liquid in the rice fruit. A population of 5 walang sangit per 9 rice clumps can reduce production by 15%, so that within one week it can reduce production by approximately 27%. The manufacture of coconut shell liquid smoke organic pesticides will be carried out at the Ketindan Agricultural Training Center (BBPP) Malang in May 2022 and rice planting and testing the effectiveness of coconut shell liquid smoke organic pesticides against walang sangit will be carried out in August 2022 to November 2022 on land house in Lontar district, Surabaya. The research design to be used was a completely randomized design with 4 treatments. Each treatment was repeated 6 times, resulting in a total of 24 experimental treatments. Each experimental treatment used 5 stink bugs, so the total required was 120 stink bugs. The data that has been obtained will be analyzed using the ANOVA test and will then be followed by the DMRT (Duncan's Multiple Rangen Test) test at a significant level of 5%. To determine the LC50 of coconut shell liquid smoke organic pesticides, probit analysis will be used and estimated using graphs and tables. The results showed that there were changes that appeared during the test, namely the stink bug often rose to the top of the lid, often spread its wings and emitted a more pungent odor as a form of defense. Also physical changes in the body, namely the color on the walang sangit's body is darker/blackish brown due to the entry and operation of organic pesticides from coconut shell liquid smoke on the walang sangit's body. The most effective concentration of coconut shell liquid smoke in controlling stink bugs is 8%. The higher the concentration of liquid smoke, the greater the mortality rate. Based on the results of the LC50 probit analysis on the mortality rate of the walang sangit test insects, it showed that starting at a concentration of 4.10%, it was able to kill 50% of the test insects, which means that a concentration of 4.10% effectively killed 50% of the test insects. Keywords: Liquid Smoke, Leptocorisa oratorius, Mortality
| 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 > Departement of Agritechnology | ||||||||
| Depositing User: | Gabriella Gabriella Cantika | ||||||||
| Date Deposited: | 05 Jun 2023 08:31 | ||||||||
| Last Modified: | 05 Jun 2023 08:31 | ||||||||
| URI: | http://repository.upnjatim.ac.id/id/eprint/14217 |
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