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Spray volume can influence the amount of free water on the leaf surface and subsequently the ability of entomopathogenic nematodes (EPN) to move on the leaf and find a host. In this study, we investigated the effect of spray volume, viz. 548, 730 and 1095 L ha-1 on the deposition, viability and infectivity of entomopathogenic nematodes against Galleria mellonella on savoy cabbage and cauliflower. No significant effect of spray volume was observed on the relative deposition of EPN on the bottom side of cauliflower and savoy cabbage leaf discs. Despite the low nematode deposition on the bottom side of the savoy cabbage discs, high infectivity was obtained. Using the lowest spray volume on savoy cabbage, infectivity decreased with increasing exposure time, while infectivity was not affected by exposure time when a spray volume of 730 L ha-1 or more was used.
|Title of host publication||International Advances in Pesticide Application|
|Editors||P G Anderson, P Balsari, P I Carpenter, S E Cooper, C R Glass, B Magri, P C H Miller, C Mountford-Smith, T H Robinson, D Stock, W A Taylor, J van de Zande|
|Number of pages||8|
|Place of Publication||Warwick, UK|
|Publisher||Association of Applied Biologists|
|Publication status||Published - 2012|
|Event||International Advances in Pesticide Application (2012) - Wageningen, Netherlands|
Duration: 10-Jan-2012 → 12-Jan-2012
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