Agronomic techniques to controlLobesia botrana |
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| Authors: | Aikaterini N Vartholomaiou Emmanuel I Navrozidis Christopher C Payne Georgios A Salpiggidis |
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| Institution: | (1) School of Biological Sciences, The University of Reading, RG6 6AH Whiteknights, Reading, UK;(2) Present address: Benaki Phytopathological Institute, 14561 Kifissia, Athens, Greece;(3) ATEI Thessalonikis, 54101 Thessaloniki, Greece;(4) Laboratory of Viticulture, School of Agriculture, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece |
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| Abstract: | The grapevine mothLobesia botrana (Denis & Schiffermüller) (Lepidoptera: Tortricidae) is a key pest of grapevines in Greece. As part of a broader study on
integrated pest management, the effects were investigated of different cultural methods on the establishment and survival
ofL. botrana, specifically: application of different nitrogen levels (30 and 100 units of ammonium sulfate or 70 units of Agrobiosol);
summer leaf and shoot pruning; application of growth regulators (Regalis, prohexadione-calcium; or Falgro, gibberellic acid).
There were significant differences among the three levels of N application. The lowestL. botrana infestation rates were found in plots treated with 30 units of (NH4)2SO4 and plots that received some summer pruning. Following the application of plant growth regulators, the lowestL. botrana infestation levels occurred in the plots treated with Regalis or Falgro at the manufacturers’ recommended concentrations.
On vines where growth regulators had been applied, the clusters had fewer berries than those not treated with growth regulators.
http://www.phytoparasitica.org posting June 11, 2008. |
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| Keywords: | Ammonium sulfate cluster compactness cluster infestation growth regulators IPM pruning vine fertilization |
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