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

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....

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Bibliographic Details
Published in:The Scientific World Journal 2012, Vol.12
Main Authors: Leong, Stephen Chan Teck, Abang, Fatimah, Beattie, Andrew, Kueh, Roland Jui Heng, Wong, Sing King
Format: Report
Language:English
Subjects:
Agricultural research
Control
Insecticides
Mineral oils
Pests
Online Access:Get full text
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Summary: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 n[C.sub.24]HMO and conventional pesticides on the citrus psyllid population and parasitoids in citrus orchard were also determined.
ISSN:1537-744X
1537-744X
DOI:10.1100/2012/651416