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*, Fatimah Abang, Andrew Beattie, Roland Jui Heng Kueh, Sing King Wong

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Citations (Scopus)

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 degrees 33'N, 110 degrees 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.

Original languageEnglish
Article number651416
Pages (from-to)1-7
Number of pages7
JournalThe Scientific World Journal
DOIs
Publication statusPublished - 2012
Externally publishedYes

Keywords

  • TRIOZA-ERYTREAE DELGUERCIO
  • PETROLEUM SPRAY OILS
  • GREENING DISEASE
  • ASIAN CITRUS
  • MYZUS-PERSICAE
  • PSYLLIDAE
  • HOMOPTERA
  • FLORIDA

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