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Resistance to spirodiclofen in Brevipalpus yothersi ( <scp>Acari: Tenuipalpidae</scp> ) from <scp>Brazilian</scp> citrus groves: detection, monitoring, and population performance
- Source :
- Scopus, Repositório Institucional da UNESP, Universidade Estadual Paulista (UNESP), instacron:UNESP, Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP
- Publication Year :
- 2021
- Publisher :
- Wiley, 2021.
-
Abstract
- Made available in DSpace on 2021-06-25T10:25:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01 BACKGROUND: Brevipalpus yothersi mite is the main vector of Citrus leprosis virus (CiLV), the causal agent of citrus leprosis disease. The acaricide spirodiclofen has been widely used to control this mite. However, failures in control using spirodiclofen have been frequently reported by citrus growers. In this study, we estimated the diagnostic concentration to monitor the resistance to spirodiclofen of B. yothersi populations collected in nine citrus groves in Brazil. We then selected the B. yothersi population that showed lowest mortality with the estimated diagnostic concentration of spirodiclofen to characterize the frequency of resistant individuals, as well as demographic and life table parameters. RESULTS: Variability was higher between populations in terms of susceptibility to spirodiclofen. The frequency of resistant eggs between populations ranged from 0.7% to 85.8%. The resistance ratio of B. yothersi to spirodiclofen was low to moderate. Survival rates of the immature stage, total adult longevity, oviposition days, and female fecundity were lower in the resistant strain. Furthermore, net reproduction rate, intrinsic rate of increase, finite rate of increase, and mean length of a generation were also lower in the R strain. CONCLUSION: Although variations in resistance to spirodiclofen were observed between populations, the resistance ratio was low to moderate. Such data can be useful in the development of resistance management strategies for B. yothersi in Brazilian citrus groves. Department of Agricultural Sciences São Paulo State University (UNESP) - College of Agricultural and Veterinary Sciences Department of Entomology and Acarology University of São Paulo (ESALQ/USP) Department of Agricultural Sciences São Paulo State University (UNESP) - College of Agricultural and Veterinary Sciences
- Subjects :
- 0106 biological sciences
Citrus
Brevipalpus phoenicis
ketoenol
Population
Tenuipalpidae
Biology
01 natural sciences
Toxicology
4-Butyrolactone
Citrus leprosis virus (CiLV)
Animals
Spiro Compounds
Citrus leprosis disease
Population dynamics
education
Mites
education.field_of_study
Acaricide
food and beverages
General Medicine
Fecundity
biology.organism_classification
010602 entomology
VÍRUS DE PLANTAS
Insect Science
Female
Agronomy and Crop Science
Brazil
Citrus × sinensis
Citrus sinensis
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15264998 and 1526498X
- Volume :
- 77
- Database :
- OpenAIRE
- Journal :
- Pest Management Science
- Accession number :
- edsair.doi.dedup.....f1eacfab1cc1b7f87ab0a731c9ff2dbc