Impacts of Horticultural Mineral Oils and Two Insecticide Practices on Population Fluctuation of Diaphorina citri and Spread of Huanglongbing in a Citrus Orchard in Sarawak

Stephen, Chan Teck Leong and Fatimah, Abang and Andrew, Beattie and Roland Jui Heng Kueh, Roland Jui Heng Kueh and Sing, King Wong (2012) Impacts of Horticultural Mineral Oils and Two Insecticide Practices on Population Fluctuation of Diaphorina citri and Spread of Huanglongbing in a Citrus Orchard in Sarawak. The Scientific World Journal, 2012. pp. 1-7. ISSN 1537-744X

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Official URL: http://www.researchgate.net/publication/225045262_...

Abstract

Aspects of the incidence and spread of the citrus disease huanglongbing (HLB) in relation to the vector Diaphorina citri population fluctuation were studied from January 1999 to December 2001 seasons in a 0.8 ha citrus orchard at Jemukan (1° 33'N, 110° 41'E), Southwest Sarawak in Malaysia. In relation to insecticide and horticultural mineral oils (HMOs) use, levels of HLB infection rose quite rapidly over the next 3 years in the unsprayed control and less rapidly in the other treatments such as imidacloprid, nC24HMO, and triazophos/cypermethrin/chlorpyrifos. Levels of HLB as determined by Polymerase Chain Reaction (PCR) were 42.2%, 9.4%, 11.4%, and 22.7%, respectively. The effects of nC(24)HMO and conventional pesticides on the citrus psyllid population and parasitoids in citrus orchard were also determined.

Item Type: Article
Uncontrolled Keywords: Horticultural , Diaphorina citri , Huanglongbing , Citrus Orchard , unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education , research, Universiti Malaysia Sarawak.
Subjects: Q Science > Q Science (General)
S Agriculture > S Agriculture (General)
S Agriculture > SB Plant culture
Divisions: Academic Faculties, Institutes and Centres > Corporate Planning and Communications Division ( Chancellory )
Depositing User: Karen Kornalius
Date Deposited: 24 Jun 2015 03:45
Last Modified: 24 Jun 2015 03:45
URI: http://ir.unimas.my/id/eprint/7944

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