Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat

The termite Coptotermes curvignathusis a very important pest of oil palm in peat. Conventional methods such as using spraying chemical pesticide and physical barrier do not provide long term control. An alternative method by using entomopathogenic fungus has great potential as a biopesticide agai...

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Main Author:	Nyam, Vei Ting
Format:	Thesis
Language:	English
Published:	2015
Subjects:	Oil palm Peat soils Peatlands
Online Access:	http://psasir.upm.edu.my/id/eprint/78354/1/FSPM%202015%205%20ir.pdf
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spelling	my-upm-ir.783542022-01-19T04:28:38Z Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat 2015-03 Nyam, Vei Ting The termite Coptotermes curvignathusis a very important pest of oil palm in peat. Conventional methods such as using spraying chemical pesticide and physical barrier do not provide long term control. An alternative method by using entomopathogenic fungus has great potential as a biopesticide against the termite. However, in order to effectively use entomopathogenic fungus to control the subterranean termite, the fungus quality in terms of the ability cause epizootic to termite, method of delivery and application in field are the main concern to researcher. In this study, liquid state fermentation was used to increase the fungus quality and to obtain large quantity in shorter time. Three different types of liquid mediums which were Jenkins medium, Leland medium and MPOB medium were used to mass a produce pathogenic local isolate of Metarhizium anisopliae var. anisopliae. Fungus in Jenkins medium yielded significantly highest number of submerged conidia with 2.36 x 109 submerged conidia/mL even in lowest growth rate on day 3 after inoculation. Fungus culture from Jenkins medium with concentration of 1:0 fungus culture to distilled water showed ability to cause 100% mortality in day 4 after treatment compared to MPOB medium in day 6 after treatment and Leland medium in day 9 after treatment. The fungus was then incorporated with 8 different combinations of bait matrix to formulate into a bait which can attract termite, reduce repellence, prolong active ingredient (fungus) shelf life, and sustain the ability to control termite colony. From the choice feeding test, bait matrix made of dextrin, PVP K90 and skim milk (DPS) impregnated with the fungus has the ability to attract termite compared to other bait matrix. Furthermore, DPS bait has ability to cause 100% mortality on 19 days after treatment. Termite took shorter time to finish the DPS bait with 11.2 day to consume all the baits, and consumed significantly larger quantity of DPS bait compared to the 7 other baits which consisted of different proportion of skim milk, dextrin, PVP K90 and kaolin. Shelf life of the baits were tested through bioassays. All baits were able to maintain consistent termite mortality of more than 80% for over 6 months. A specially designed bait delivery system was adapted to local peat environment was developed to deliver the selected baits DPS and PS infested oil palm tree in the field. Over the 6 months trial period, bait designed delivery system was able to protect the bait from getting wet by rain water and the high water table in peat soil. Termites were found colonizing the PVP K90 plus skim milk (PS) bait chamber as early as one week after application. Termites collected from the vicinity of the bait chamber were found infected and killed by M. anisopliae. There were no C. curvignathus found in the previously infested palm trees at the end of the trial period. The formulated bait delivered in termite baiting system had shown effectiveness in the control of termite in oil palm plantation in peat soil area. Oil palm Peat soils Peatlands 2015-03 Thesis http://psasir.upm.edu.my/id/eprint/78354/ http://psasir.upm.edu.my/id/eprint/78354/1/FSPM%202015%205%20ir.pdf text en public masters Universiti Putra Malaysia Oil palm Peat soils Peatlands Bong, Joseph Choon Fah
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Bong, Joseph Choon Fah
topic	Oil palm Peat soils Peatlands
spellingShingle	Oil palm Peat soils Peatlands Nyam, Vei Ting Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat
description	The termite Coptotermes curvignathusis a very important pest of oil palm in peat. Conventional methods such as using spraying chemical pesticide and physical barrier do not provide long term control. An alternative method by using entomopathogenic fungus has great potential as a biopesticide against the termite. However, in order to effectively use entomopathogenic fungus to control the subterranean termite, the fungus quality in terms of the ability cause epizootic to termite, method of delivery and application in field are the main concern to researcher. In this study, liquid state fermentation was used to increase the fungus quality and to obtain large quantity in shorter time. Three different types of liquid mediums which were Jenkins medium, Leland medium and MPOB medium were used to mass a produce pathogenic local isolate of Metarhizium anisopliae var. anisopliae. Fungus in Jenkins medium yielded significantly highest number of submerged conidia with 2.36 x 109 submerged conidia/mL even in lowest growth rate on day 3 after inoculation. Fungus culture from Jenkins medium with concentration of 1:0 fungus culture to distilled water showed ability to cause 100% mortality in day 4 after treatment compared to MPOB medium in day 6 after treatment and Leland medium in day 9 after treatment. The fungus was then incorporated with 8 different combinations of bait matrix to formulate into a bait which can attract termite, reduce repellence, prolong active ingredient (fungus) shelf life, and sustain the ability to control termite colony. From the choice feeding test, bait matrix made of dextrin, PVP K90 and skim milk (DPS) impregnated with the fungus has the ability to attract termite compared to other bait matrix. Furthermore, DPS bait has ability to cause 100% mortality on 19 days after treatment. Termite took shorter time to finish the DPS bait with 11.2 day to consume all the baits, and consumed significantly larger quantity of DPS bait compared to the 7 other baits which consisted of different proportion of skim milk, dextrin, PVP K90 and kaolin. Shelf life of the baits were tested through bioassays. All baits were able to maintain consistent termite mortality of more than 80% for over 6 months. A specially designed bait delivery system was adapted to local peat environment was developed to deliver the selected baits DPS and PS infested oil palm tree in the field. Over the 6 months trial period, bait designed delivery system was able to protect the bait from getting wet by rain water and the high water table in peat soil. Termites were found colonizing the PVP K90 plus skim milk (PS) bait chamber as early as one week after application. Termites collected from the vicinity of the bait chamber were found infected and killed by M. anisopliae. There were no C. curvignathus found in the previously infested palm trees at the end of the trial period. The formulated bait delivered in termite baiting system had shown effectiveness in the control of termite in oil palm plantation in peat soil area.
format	Thesis
qualification_level	Master's degree
author	Nyam, Vei Ting
author_facet	Nyam, Vei Ting
author_sort	Nyam, Vei Ting
title	Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat
title_short	Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat
title_full	Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat
title_fullStr	Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat
title_full_unstemmed	Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat
title_sort	mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (isoptera: rhinotermitidae) in oil palm on peat
granting_institution	Universiti Putra Malaysia
publishDate	2015
url	http://psasir.upm.edu.my/id/eprint/78354/1/FSPM%202015%205%20ir.pdf
_version_	1747813287457718272

Mass production, formulation and delivery of metarhizium anisopliae var. anisopliae for control of sunterranean termite coptotermes curvignathus holmgren (Isoptera: Rhinotermitidae) in oil palm on peat

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