CD Skripsi

Uji Konsentrasi Ekstrak Daun Mimba (Azadirachta Indica A. Juss) Terhadap Mortalitas Ulat Bawang Spodoptera Exigua Hubner. Di Laboratorium

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ABSTRACT
Shallot (Allium ascalonicum L.) is one of the leading horticultural crops that is
highly favored by the public as a cooking spice and is also useful as a traditional
medicine. Efforts to increase shallot production still face obstacles, such as pest
attacks by the onion caterpillar (Spodoptera exigua Hubner), which can cause
yield losses of 32–42%. One of the control strategies for S. exigua larvae is the
use of botanical insecticides derived from neem leaves (Azadirachta indica A.
Juss). This study aimed to determine the effective concentration of neem leaf
extract on the mortality of S. exigua larvae under laboratory conditions. The
research was conducted at the Plant Pest Laboratory, Faculty of Agriculture,
University of Riau. The experiment was carried out using a Completely
Randomized Design (CRD) consisting of six treatments and four replications,
resulting in a total of 24 experimental units. The treatments applied were neem
leaf extract concentrations of 0 g.l-1 water, 20 g.l-1 water, 40 g.l-1 water, 60 g.l-1
water, 80 g.l-1 water and 100 g.l-1 water. The results showed that the application of
neem leaf extract at a concentration of 60 g.l-1 of water was the most effective in
controlling Spodoptera exigua larvae, with a total mortality rate of 80%. Initial
mortality was observed 18 hours after application, and the lethal time to kill 50%
of the population (LT50) was reached at 53.50 hours after treatment. The
appropriate concentration of neem leaf extract to kill 50% of the S. exigua larvae
population (LC50) was 1.47% equivalent to 14.7 g.l-1 of water, while the
concentration required to kill 95% of the larvae (LC95) was 18.48% equivalent to
184.8 g.l-1 of water.
Keywords: Application, Botanical Insecticides, Lethal Time, Shallot.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1906156106

Penerbit

Pekanbaru : Universitas Riau – F.PERTANIAN – AGROTEKNOLOGI., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1906156106

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

Lampiran Berkas

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