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Pengendalian Spodoptera Exigua Dengan Light Trap Dan Pelepasan Parasitoid Trichogramma Japonicum Pada Pembibitan Akasia (Acacia Crassicarpa) Di Kerinci Central Nursery PT. Riau Andalan Pulp & Paper

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Army worm (Spodoptera exigua Hubner.) is the main pest of acacia.
Controls that are carried out generally use synthetic insecticides which cause
negative impacts such as emergence of cases of resistance, resurgence,
environmental pollution, residual effects, secondary pest explosions and reduced
biodiversity. So we need an alternative in pest control, such us using light traps
and the parasitoid Trichogramma japonicum. This study aims to obtain the best
light trap model for monitoring and control systems against Spodoptera exigua
and to test the parasitism after the release of Trichogramma japonicum on
Spodoptera exigua eggs in Acacia crassicarpa nurseries.
The research was carried out at the Kerinci Central Nursery and
Laboratorium Entomology R&D PT. RAPP. The research was carried out in
October 2019-March 2020. Two stages of the research experiment, namely: 1)
test the best light trap model for controlling Spodoptera exigua, using a
Randomized Block Design (RBD) with 4 treatments and 5 replications, obtained
20 experimental units. The treatment are without a light trap, Insect trap-light
trap ECO R-II, Pond Trap modified light trap with local lights ML, 500 W, 220-
230 V, E40, Philips and Light trap–modified Brazilian model (handmade). 2) test
the parasitism percentage of release parasitoid Trichogramma japonicum on
Spodoptera exigua eggs in acacia nurseries. The treatments were plots with and
without the release of Trichogramma japonicum on Spodoptera exigua eggs using
Corcyra cephalonica as host alternative for seven days of observation.
The best light trap model recommended for monitoring and controlling
armyworms Spodoptera exigua is a light trap with a 500 W Phillips local light,
capable of collecting Spodoptera exigua imago with an average collection per
day of 187.9 with a male to female ratio of 1 :2.8 and able to reduce severity
damage per month from 2.2% to 0%. This light trap is very effective and efficient
which is easily obtained at a lower cost than other traps. The parasitism rate of
Spodoptera exigua eggs parasitized by Trichogramma japonicum was high,
namely 41.9% after the release of parasitoids in Acacia crassicarpa nursery. The
highest parasitism was in the third plot with an average parasitism of 53.8% and
the lowest was in the first plot with an average parasitism of 31.3%.
Trichogramma japonicum that emerged from the total mass of eggs brought to the
laboratory after parasitized eggs was 14.2%. Trichogramma japonicum showed
significantly different results in reducing the egg population of the pest
Spodoptera exigua in the mother plant Acacia crassicarpa nursery.
Key words: Spodoptera exigua, Light trap, Trichogramma japonicum, Acacia
crassicarpa.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

10 10. 221 (0004)

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Ilmu Pertanian., 2021

Deskripsi Fisik

xi, 63 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

10 10. 221 (0004)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

ILMU PERTANIAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

FATAH

Versi lain/terkait

Lampiran Berkas

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