Skripsi

UJI REPELENSI TANAH DIATOM TERHADAP KUMBANG TEPUNG MERAH (TRIBOLIUM CASTANEUM HERBST) (COLEOPTERA:TENEBRIONIDAE)

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Red flour beetles (Tribolium castaneum) are pests that damage stored agricultural products, causing a decline in the quality and quantity of rice. T. castaneum is classified as a secondary pest in rice commodities. This study aims to determine the repellency level of diatomaceous earth against T. castaneum in white glutinous rice at different doses, as well as the effect of diatomaceous earth on the mortality rate of T. castaneum imagoes at various doses during the storage of white glutinous rice. This study used a completely randomized design (CRD) with 4 treatments and 6 replicates. The doses used were: Control, 1.25 DE/20 white glutinous rice, 1.9 DE/20 white glutinous rice, and 2.5 DE/20 white glutinous rice. Observations were conducted for 13 days, and the parameters observed included mortality, repellency, LD50, and LT50. Each treatment used 20 grams of white glutinous rice and 20 T. castaneum imagoes. The highest mortality rate was found at a dose of 2.5 with a value of 75%, while the lowest mortality rate was found at a dose of 1.25 with a value of 62%. The highest repellency was observed at a dose of 2.5 with a value of 49%, while the lowest was at a dose of 1.9 with a value of 35%. LD50 analysis showed an LD50 value of 8,140 on the first day, while on the 13th day the value was 710. On the 10th day, the LT50 value at a 0% dose was 574,806, while at a dose of 2.5 it showed a negatif value of -12,756, indicating a very large difference in mortality rates between doses. In conclusion, the most effective dose for controlling T. castaneum is 2.5. The higher the dose of diatomaceous earth, the more likely insects are to stay away from the treated area.

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Detail Information

Series Title

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Call Number

T1920282025

Publisher

Indralaya : Jurusan Hama dan Penyakit Tumbuhan, Fakultas Pertanian Universitas Sriwijaya., 2025

Collation

xiii, 126 hlm.; ilus.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

632.70 7

Content Type

Text

Media Type

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Carrier Type

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Edition

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Subject(s)

Prodi Proteksi Tanaman
Kumbang Tepung Merah

Specific Detail Info

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Statement of Responsibility

TUTI

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