EFEKTIVITAS BIOINSEKTISIDA BERBAHAN AKTIF Bacillus thuringiensis DENGAN PENAMBAHAN SURFAKTAN TERHADAP Spodoptera litura (LEPIDOPTERA:NOCTUIDAE) PADA TANAMAN KACANG PANJANG (Vigna sinensis L.)

ANGGARAINI, ELILA and Pujiastuti, Yulia (2021) EFEKTIVITAS BIOINSEKTISIDA BERBAHAN AKTIF Bacillus thuringiensis DENGAN PENAMBAHAN SURFAKTAN TERHADAP Spodoptera litura (LEPIDOPTERA:NOCTUIDAE) PADA TANAMAN KACANG PANJANG (Vigna sinensis L.). Undergraduate thesis, Sriwijjaya University.

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Abstract

Army worm (Spodoptera litura F.) is one economically important pest causing problems to farmers in increasing the yield of cowpea. S. litura is important pest of food crops and estate crops. This research was aimed at knowing the best organic waste to be used to culture B. thuringiensis and the performance of surfactant Trietanolamina (TEA) in increasing the mortality of S. litura. The research was conducted in the Laboratory of Entomologi, Department of Plant Pests and Disease, Faculty of Agriculture Sriwijaya University, from May to August 2021. The experiment was arranged in a Factorial Completely Randomized Design (FCRD) with 2 factors i.e surfactant (with and without surfactant TEA) and the second factor was culturing media for B. thuringiensis consisting of 5 levels i.e rice bran, rice washing water, liquid tofu by product, bio-urine and Nutrient broth. Each treatment was replicated 5 times. Parameters observed were spore density, insect mortality, symptoms of infected insect, larval size, leaf area consumed, infected insect development, room temperature and humidity. Collected data was analyzed using analysis of variance (ANOVA) followed by Honesty Significant Difference (HSD) The conclusion is that organic wastes affect the growth of B.thuringiensis. The best organic waste in supporting the growth of B.thuringiensis. was Biourine. The addition of surfactant Trietanomin (TEA) to bio-insecticide affected the mortality of S. litura larvae with the highest mortality was found in treatment 2 (rice washing water and treatment 4 (Biourine).

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	B.thuringiensis, Bioinsektisida, Spodoptera litura F, Surfaktan.
Subjects:	S Agriculture > S Agriculture (General) > S1-(972) Agriculture (General)
Divisions:	05-Faculty of Agriculture > 54295-Plant Protection (S1)
Depositing User:	Elila Anggaraini
Date Deposited:	26 Jan 2022 06:15
Last Modified:	26 Apr 2022 02:54
URI:	http://repository.unsri.ac.id/id/eprint/62680

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