POPULASI SERANGGA HAMA MANDIBULATA DAN KELIMPAHAN SERANGGA PREDATOR PADA TANAMAN PADI YANG DIAPLIKASIKAN BIOINSEKTISIDA BEAUVERIA BASSIANA

YUSMARI, JOHAR and Herlinda, Siti and Suwandi, Suwandi (2015) POPULASI SERANGGA HAMA MANDIBULATA DAN KELIMPAHAN SERANGGA PREDATOR PADA TANAMAN PADI YANG DIAPLIKASIKAN BIOINSEKTISIDA BEAUVERIA BASSIANA. Undergraduate thesis, Sriwijaya University.

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Abstract

Pests in paddy ecosystems has increased because of the food available continuously due to agricultural monoculture that encourages susceptible ecosystems particularly to outbreak pests mandibulata. The purpose of this study was to determine the effect of Beauveria bassiana biopesticide application of various doses toward population mandibulate pests and abundance of predators in lowland swamp rice fields. The experiment was conducted in March 2014 through December 2014 in lowland swamp paddy fields in Pelabuhan Dalam sub-district Pemulutan. Manufactured bioinsecticide and insect identification performed in the Laboratory of Entomology Department of Plant Pests and Diseases. This study was conducted using a randomized block design with 5 treatments and 4 replicates. The treatmens is without application, dose of application bioinsecticide 2 L.ha-1, dose of application bioinsecticide 4 L.ha-1 , dose of bioinsecticide application 6 L.ha-1 and sintetic insecticide application. The results showed that the most dominant mandibulate pests of the family Pyralidae and Acrididae while the dominant predators of the family Carabidae, Coccinelidae and Staphylinidae. The dominant species of predatory insect are Pheroshopus officinalis, Paederus fuscifes and Ophionea ishiishi. Bioinsecticide aplication of various doses affect the population of mandibulate insect pest and abundance of predators. In conclusion, the application of bioinsecticides with higher doses could reduce the population of insect pests in rice paddy mandibulate lowland swamp. The higher dose of bioinsecticide application raised the abundance of individuals and spesies of predatory insects to be lower than the field without application of insecticides. The right dose in the application of bioinsecticide Beauveria bassisana is 2 L.ha-1 or 4 L.ha1.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Bioinsecticide, Beauveria Bassiana, Paddy
Subjects: S Agriculture > S Agriculture (General) > S589.7 Agricultural ecology (General)
Divisions: 05-Faculty of Agriculture > 54211-Agricultural Technology (S1)
Depositing User: Users 2582 not found.
Date Deposited: 21 Nov 2019 06:40
Last Modified: 21 Nov 2019 06:40
URI: http://repository.unsri.ac.id/id/eprint/17106

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