UJI EFIKASI INSEKTISIDA NABATI DAUN MENGKUDU DENGAN BERBAGAI METODE APLIKASI TERHADAP MORTALITAS HAMA ULAT GRAYAK (Spodoptera litura F.)

Qodtrunnada, Atia (2022) UJI EFIKASI INSEKTISIDA NABATI DAUN MENGKUDU DENGAN BERBAGAI METODE APLIKASI TERHADAP MORTALITAS HAMA ULAT GRAYAK (Spodoptera litura F.). Undergraduate thesis, Politeknik Negeri Jember.

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Abstract

The purpose of this study was to determine the effectiveness of noni leaf insecticide on the mortality of armyworm (Spodoptera litura F.). Application method The study used a factorial randomized block design (RAKF), consisting of 6 treatments with 4 replications, namely (control) + Feed Method, Noni Plant Insecticide 2.5% + Feed Method, Noni Vegetable Insecticide 5% + Feed Method, (control) + Contact Method, Noni Vegetable Insecticide 2.5% + Contact Method and Noni Vegetable Insecticide 5% + Contact Method. This research was conducted in July - August 2022 at the Jember State Polytechnic Plant Protection Laboratory. The test larvae used in this study were test larvae of Spodoptera litura F. instar 3. The experimental data were analyzed using ANOVA, if the results showed a significant effect, a 5% level BNJ further test was carried out, while to determine the LT50 using probit analysis. There are 3 parameters used, namely mortality, LT50, and physical changes. The results showed that noni plant insecticides were effective and had a very significant effect at 24 hours to 144 hours against armyworms (S. litura F.). Various methods of application of noni leaf vegetable insecticides had a very significant effect at 24 hours, 48 hours, 144 hours and had a significant effect at 72 hours, 120 hours on armyworm mortality. The interaction between types of noni leaf insecticides and various application methods had a very significant effect at 24 hours, significantly at 48 and 144 hours on the mortality of armyworm (S. litura) after application.

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