NDLI: Factors influencing citrus fruit scarring caused by Pezothrips kellyanus

Content Provider	Springer Nature Link
Author	Navarro Campos, Cristina Pekas, Apostolos Aguilar, Amparo Garcia Marí, Ferran
Copyright Year	2013
Abstract	Kelly’s citrus thrips (KCT) Pezothrips kellyanus (Bagnall) (Thysanoptera: Thripidae) is a recently recorded cosmopolitan citrus pest, causing fruit scarring that results in downgrading of fruit. Due to the detrimental effects caused on fruits by KCT, we wanted to study some of the factors influencing fruit scarring. Specifically, the objectives were: (1) to determine the fruit development stage when citrus fruits are damaged by KCT and the population structure of KCT during this period, (2) to study the influence of temperature on intensity of damage, and finally, (3) to identify alternative host plants. KCT populations on flowers and fruitlets and alternate plant hosts were sampled in four citrus orchards from 2008 to 2010. The percentage of damaged fruits was also recorded. The exotic vine Araujia sericifera (Apocynaceae) was recorded as a new host for KCT. Thrips scarring started to increase at 350–650 degree-days (DD) above 10.2 °C, coinciding with a peak abundance of the second instar larval stages over all 3 years of the study. The maximum percentage of larval stages of KCT was observed in the 3 years at about 500 DD, a period which corresponds to the end of May or early June. Variation in the severity of fruit scarring appeared to be related to air temperature. Temperature likely affects the synchronisation between the peak in abundance of KCT larvae, and the period when fruitlets are susceptible to thrips damage. Temperature can also influence the survival and development of KCT populations in citrus and other host plants in the citrus agro-ecosystem.
Starting Page	459
Ending Page	467
Page Count	9
File Format	PDF
ISSN	16124758
Journal	Journal of Pest Science
Volume Number	86
Issue Number	3
e-ISSN	16124766
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-03-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Kelly’s citrus thrips Fruit scarring Temperature Degree-days Araujia sericifera Population structure Entomology Agriculture Plant Pathology Ecology Forestry Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science Ecology, Evolution, Behavior and Systematics Insect Science Agronomy and Crop Science

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