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                                       Details for article 4 of 9 found articles
 
 
  Developing a generic sampling system for monitoring the key arthropod pests of table grapes, Vitis vinifera L.
 
 
Title: Developing a generic sampling system for monitoring the key arthropod pests of table grapes, Vitis vinifera L.
Author: de Villiers, Marelize
Pringle, Ken L.
Appeared in: International journal of pest management
Paging: Volume 54 (2008) nr. 3 pages 207-217
Year: 2008-07
Contents: We describe a system developed for monitoring arthropod pests of table grapes in the Hex River Valley, South Africa. The system has wide applicability for monitoring pests at grape-producing localities in the country. Six Vitis vinifera cv. Barlinka and six V. vinifera cv. Dauphine vineyards were used as sampling sites. In each vineyard, 100 vines were inspected bi-weekly, to record damage or the presence of arthropod pests on the cordon, one bunch and one leaf per vine. Sampling precision and operating characteristic (OC) curves were estimated for each of the pests. Using previously determined economic thresholds together with the OC curves, action thresholds were determined for Tetranychus urticae Koch (Prostigmata: Tetranychidae) (11-29% leaf infestation), Planococcus ficus (Signoret) (Hemiptera: Pseudococcidae) (2% cordon infestation), Epichoristodes acerbella (Walker) (Lepidoptera: Tortricidae) and Phlyctinus callosus Boh. (Coleoptera: Curculionidae) (1% bunch damage). This novel system can be used for monitoring arthropod pest population levels in all types of South African vineyards, providing a basis for the development of integrated pest management (IPM) systems in these vineyards.
Publisher: Taylor & Francis
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details for article 4 of 9 found articles
 
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