EFIKASI FORMULASI CAIR INOKULUM Beauveria bassiana (BALS.) VUILL. DAN Metarhizium sp. SEBAGAI BIOINSEKTISIDA TERHADAP Sogatella furcifera HORV. (HOMOPTERA: DELPHACIDAE) PADA TANAMAN PADI

HARTONO, HARTONO and Herlinda, Siti and Irsan, Chandra (2008) EFIKASI FORMULASI CAIR INOKULUM Beauveria bassiana (BALS.) VUILL. DAN Metarhizium sp. SEBAGAI BIOINSEKTISIDA TERHADAP Sogatella furcifera HORV. (HOMOPTERA: DELPHACIDAE) PADA TANAMAN PADI. Undergraduate thesis, Sriwijaya University.

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Abstract

Sogatella furcifera is one of several pest in rice. This research was aimed to investigate effectivity of Beauveria bassiana and Metarhizium sp. on mortality, morphology and LT50 nimph S. furcifera. The research was conducted in Entomological Laboratory Department of Plant Pest and Disease, Faculty of Agriculture, Sriwijaya University from December 2007 up to February 2008. The objective of the research was to examine the effect of bioinsecticides concentration levels by active ingredient B. bassiana and Metarhizium sp. That growth on com mill, rice and SDB substrate against mortality, morphology and Lethal Time (LT50) of Sogatella furcifera nimph. The research was designed by Completely Randomized Design with 19 treatments and 3 replications. The application of 10 pl of each isolate solution tested to S. furcifera nimph by serial concentration 0, 103 , 105 , 107 spores/ml. The formulation used were B. bassiana fungi from com mill substrate+700 ml EKKU 100%+300 g glucose (A), Metarhizium sp. from com mill substrate+700 ml EKKU 100%+300 g glucose (B), Beauveria bassiana from rice substrate+700 ml EKKU 100%+300 g glucose (C), Metarhizium sp. from rice substrate+ 700 ml EKKU 100%+300 g glucose (D), Beauveria bassiana from SDB substrate+300 g glucose (E), Metarhizium sp. From SDB substrate+300 glucose (F). The result showed that there were significantly effect of B. bassiana and Metarhizium sp. substrate against the mortality of S. furcifera nimph on BbA7, Mb7 and MD7 treatment. The highest nymph mortality on BbA7 treatment was 66.67% achieved from B. bassiana on com mill substrate with concentration 107 spore/ml. The lowest nymph mortality was 23.33% achived from B. bassiana on SDB substrate with concentration 105 spores/ml. The nymph morphology tested showed that the nymph body become pale, dwarf, mummified and grown mycelia after some days. The shortest LT50 was 1.69 days achieved ffom B. bassiana on com mill substrate and the lowest 36.38 day from Metarhizium sp. on SDB substrate. Laboratory tests on the use of B. bassiana and Metarhizium sp. for the control of S. furcifera. The bioassay result demonstrated that B. bassiana significantly effect of S. furcifera nymph mortality. The nymph morphology tested showed that the nymph body become pale, dwarf, mummification and grown mycelia after then days. The highest nymph mortality on BbA7 treatment was 66.67% achieved from B. bassiana on com mill substrate with concentration 107 spore/ml. The shortest of LT50 value was 1.69 days achieved from B. bassiana on com mill substrate.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Sogatella furcifera nimph, Beauveria bassiana, Metarhizium sp.
Subjects:	S Agriculture > SB Plant culture > SB974-978 Organic plant protection. Biological control
Divisions:	05-Faculty of Agriculture > 54295-Plant Protection (S1)
Depositing User:	Mrs Furika Furika
Date Deposited:	09 Feb 2022 08:11
Last Modified:	09 Feb 2022 08:11
URI:	http://repository.unsri.ac.id/id/eprint/64781

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