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J Insect Sci


Title:Progress Toward an Attract-and-Kill Device for Asian Citrus Psyllid (Hemiptera: Liviidae) Using Volatile Signatures of Citrus Infected With Huanglongbing as the Attractant
Author(s):Martini X; Hoyte A; Mafra-Neto A; Aksenov AA; Davis CE; Stelinski LL;
Address:"Department of Entomology and Nematology, North Florida Research and Education Center, Quincy, FL. Department of Entomology and Nematology, Citrus Research and Education Center, Lake Alfred, FL. ISCA technology, Inc. Riverside, CA. Mechanical and Aerospace Engineering, University of California, Davis, CA"
Journal Title:J Insect Sci
Year:2020
Volume:20
Issue:6
Page Number: -
DOI: 10.1093/jisesa/ieaa126
ISSN/ISBN:1536-2442 (Electronic) 1536-2442 (Linking)
Abstract:"Asian citrus psyllid, Diaphorina citri (Kuwayama), preferentially orient toward citrus hosts infected with the phytopathogenic bacterium, Candidatus liberibacter asiaticus (CLas) the agent of citrus greening (Huanglongbing, HLB), compared to uninfected counterparts. We investigated whether this preference for the odors of infected plants could be useful for the development of an attract-and-kill (AK) device for D. citri. Twenty-nine blends of volatile organic compounds derived from the odor of citrus infected with CLas were tested in laboratory olfactometer tests, and two blends were also assessed under field conditions. A seven component blend of tricosane: geranial: methyl salicylate: geranyl acetone: linalool: phenylacetaldehyde: (E)-beta-ocimene in a 0.40: 0.06: 0.08: 0.29: 0.08: 0.06: 0.03 ratio released from a proprietary slow-release matrix attracted twice more D. citri to yellow sticky traps compared with blank control traps. The attractive blend was subsequently co-formulated with spinosad insecticide into a slow-release matrix to create a prototype AK formulation against D. citri. This formulation effectively reduced the population density of D. citri up to 84% as measured with tap counts when deployed at a density of eight 2.5 g dollops per tree as compared with untreated controls in small plot field trials conducted in citrus orchards. Psyllid populations were not statistically affected at a deployment rate of four dollops per tree. Our results indicate that an AK formulation incorporating spinosad and a volatile blend signature of citrus greening into a slow-release matrix may be useful to suppress D. citri populations"
Keywords:Animals Citrus/*chemistry *Hemiptera *Insect Control/instrumentation *Insecticides Volatile Organic Compounds/*pharmacology Acp Citrus greening Splat attracticide semiochemical;
Notes:"MedlineMartini, Xavier Hoyte, Angelique Mafra-Neto, Agenor Aksenov, Alexander A Davis, Cristina E Stelinski, Lukasz L eng 2020/11/13 J Insect Sci. 2020 Nov 1; 20(6):25. doi: 10.1093/jisesa/ieaa126"

 
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