CD Skripsi

Uji Beberapa Konsentrasi Ekstrak Akar Tuba (Derris Elliptica Benth) Pelarut Organik Terhadap Mortalitas Hama Ulat Grayak Jagung (Spodoptera Frugiperda J. E. Smith) Di Laboratorium

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ABSTRACT
Corn (Zea mays L.) is a food crop that contains carbohydrates besides rice and wheat. The new pest Spodoptera frugiperda J. E. Smith attack on maize plantations in Indonesia was able to cause yield losses of 15 – 73%. The control of larvae S. frugiperda can be done by using botanical pesticides, namely tuba root (Derris elliptica Benth) with organic solvent. The aim of this research was to get an effective concentration of tuba root extract against of S. frugiperda. The research was carried out at the Laboratory of Plant Pests, Agriculture Faculty, Riau University, from August to October 2021. The study was conducted experimentally using a Completely Randomized Design (CRD) consisting of five treatments and four replications in order to obtain 20 experimental units. The treatment given was tuba root extract with a concentration of 0%, 0,25%, 0,50%, 0,75% ,and 1% of tuba root extract with organic solvent. The parameters observed were initial time of death (hours), lethal time 50 (hours), lethal concentration 50 and 95 (%), daily mortality (%), total mortality (%), temperature and humidity. The results showed that the concentration of tuba root extract 0,75% was an effective concentration against S. frugiperda with an initial time of death 4 hours after application, a lethal time of 50 was 42,25 hours after application, lethal concentration 50 and 95 respectively 0,2% and 8,5%, daily mortality of 40% on the second day, and a total mortality of 80%.
Keywords:, Botanical pesticides, Corn, Derris elliptica Benth, Spodoptera frugiperda J. E. Smith.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1706122102

Penerbit

Pekanbaru : Universitas Riau – Fakultas Pertanian – Agroteknologi., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1706122102

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Agroteknologi

Info Detail Spesifik

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Pernyataan Tanggungjawab

DAUS

Versi lain/terkait

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