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Damage to grape flowers and berries by L obesia botrana larvae ( D enis & S chiffernüller) (Lepidoptera: Tortricidae), and relation to larval age

Damage to grape flowers and berries by L obesia botrana larvae ( D enis & S chiffernüller)... Background and Aims Evaluation of pest damage and the population age of the pest are key factors in integrated pest management. Gaining such knowledge, however, can be time consuming and difficult in larvae that have cryptic habits, such as the European grapevine moth (EGVM, Lobesia botrana). An alternative is to measure the damage caused by different larval instars. Damage caused by different EGVM larval instars was described over 3 consecutive years. Methods and Results The first two larval generations of wild EGVM were sampled in an experimental vineyard in the Bordeaux area, France; 1945 samples of larval damage to inflorescences were collected and instars determined. Significant correlations were described between both in each generation. Conclusions Quantification of plant damage monitoring has potential to assist with assessing the characteristics of EGVM populations. Significance of the Study Using crop injury or damage to determine larval stage should provide a rapid and convenient method for pest management. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Australian Journal of Grape and Wine Research Wiley

Damage to grape flowers and berries by L obesia botrana larvae ( D enis & S chiffernüller) (Lepidoptera: Tortricidae), and relation to larval age

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References (61)

Publisher
Wiley
Copyright
© 2016 Australian Society of Viticulture and Oenology Inc.
ISSN
1322-7130
eISSN
1755-0238
DOI
10.1111/ajgw.12204
Publisher site
See Article on Publisher Site

Abstract

Background and Aims Evaluation of pest damage and the population age of the pest are key factors in integrated pest management. Gaining such knowledge, however, can be time consuming and difficult in larvae that have cryptic habits, such as the European grapevine moth (EGVM, Lobesia botrana). An alternative is to measure the damage caused by different larval instars. Damage caused by different EGVM larval instars was described over 3 consecutive years. Methods and Results The first two larval generations of wild EGVM were sampled in an experimental vineyard in the Bordeaux area, France; 1945 samples of larval damage to inflorescences were collected and instars determined. Significant correlations were described between both in each generation. Conclusions Quantification of plant damage monitoring has potential to assist with assessing the characteristics of EGVM populations. Significance of the Study Using crop injury or damage to determine larval stage should provide a rapid and convenient method for pest management.

Journal

Australian Journal of Grape and Wine ResearchWiley

Published: Jun 1, 2016

Keywords: ; ; ;

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