UJI VIRULENSI DUA ISOLAT Helicoverpa armigera NUCLEOPOLYHEDROSIS VIRUS (HaNPV) ASAL SULAWESI SELATAN TERHADAP PENGGEREK BUAH KAPAS Helicoverpa armigera Hubner (LEPIDOPTERA: NOCTUIDAE)

Antares, Muhammad Prawira (2015) UJI VIRULENSI DUA ISOLAT Helicoverpa armigera NUCLEOPOLYHEDROSIS VIRUS (HaNPV) ASAL SULAWESI SELATAN TERHADAP PENGGEREK BUAH KAPAS Helicoverpa armigera Hubner (LEPIDOPTERA: NOCTUIDAE). Masters thesis, UNIVERSITAS ANDALAS.

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Abstract

Helicoverpa armigera Hubner (Lepidoptera: Noctuidae) is a major pest on cotton which often cause huge losses for cotton farmers in province of South Sulawesi. HaNPV use is one of the control solutions H. armigera were quite effective. South Sulawesi has several strategic locations cotton production with huge potential. This study aims to determine the variation virulence HaNPV in cotton plantation in the province of South Sulawesi. The second instar larvae has given thin slices of baby corn which it has dipped before in each HaNPV isolate suspension at a concentration of 1x103, 1x 104, 1x 105, 1x106, and 1x 107 PIBs/ml and control using aquabidest. This experiment consisted of 20 larvae per treatment and 4 replications. Data is processed using probit analysis to see the difference in the slope of the curve of each isolate and LC50 values. To see the polyhedral morphology of each isolates, used Scanning Electron Microscopy (SEM). Gowa district HaNPV isolates showed the higher mortality than HaNPV isolates from Bulukumba on two days post infection, while the value of LC 50 for isolates from Bulukumba

Item Type: Thesis (Masters)
Subjects: S Agriculture > S Agriculture (General)
Depositing User: s2 ilmu hama
Date Deposited: 30 Mar 2016 07:23
Last Modified: 30 Mar 2016 07:23
URI: http://scholar.unand.ac.id/id/eprint/4176

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