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Phloem Translocation of Foliar-Applied Oxamyl and Its Role in Plant Protection

Phloem Translocation of Foliar-Applied Oxamyl and Its Role in Plant Protection PHLOEM TRANSLOCATION OF FOLIAR-APPLIED OXAMYL AND ITS ROLE IN PLANT PROTECTION BY T. J. W. ALPHEY1), R. H. BROMILOW2) and A. M. ABDALLA3) 1) Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA; 2) Rothamsted Experimental Station, Harpenden, Hertfordshire AL5 2JQ; 3) Present address: Agricultural Research Corporation, P.O.B. 105, Wad Medani, Sudan Movement of the carbamoyloxime nematicide oxamyl from the foliage to the root and into the rhizosphere was studied in a series of pot experiments and bioassays. Basipetal translocation was demonstrated by the decrease in root galling and virus transmission caused by Longidorus elongatus. Analysis of tissues from potato plants treated with foliar applications of [14C]oxamyl showed that the amount of nematicide symplastically translocated was small. Bioassays using Turbatrix aceti and Xiphinema diversicaudatum indicated that exudates from cucumber plants treated with foliar oxamyl were nematicidal. However, the bioassay results varied widely. Analysis of the exudate by gas-liquid chromatography showed that only very small amounts of nematicide were present. It was concluded that basipetal translocation of oxamyl following foliar applica- tions could confer some protection against nematodes at the root surface, and perhaps even in the immediate rhizosphere, but the amount of nematicidal exudate produced was unlikely to give http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Phloem Translocation of Foliar-Applied Oxamyl and Its Role in Plant Protection

Alphey, T.J.W.; Bromilow, R.H.; Abdalla, A.M.
Nematologica , Volume 31 (4): 10 – Jan 1, 1985
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529285X00562
Publisher site
See Article on Publisher Site

Abstract

PHLOEM TRANSLOCATION OF FOLIAR-APPLIED OXAMYL AND ITS ROLE IN PLANT PROTECTION BY T. J. W. ALPHEY1), R. H. BROMILOW2) and A. M. ABDALLA3) 1) Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA; 2) Rothamsted Experimental Station, Harpenden, Hertfordshire AL5 2JQ; 3) Present address: Agricultural Research Corporation, P.O.B. 105, Wad Medani, Sudan Movement of the carbamoyloxime nematicide oxamyl from the foliage to the root and into the rhizosphere was studied in a series of pot experiments and bioassays. Basipetal translocation was demonstrated by the decrease in root galling and virus transmission caused by Longidorus elongatus. Analysis of tissues from potato plants treated with foliar applications of [14C]oxamyl showed that the amount of nematicide symplastically translocated was small. Bioassays using Turbatrix aceti and Xiphinema diversicaudatum indicated that exudates from cucumber plants treated with foliar oxamyl were nematicidal. However, the bioassay results varied widely. Analysis of the exudate by gas-liquid chromatography showed that only very small amounts of nematicide were present. It was concluded that basipetal translocation of oxamyl following foliar applica- tions could confer some protection against nematodes at the root surface, and perhaps even in the immediate rhizosphere, but the amount of nematicidal exudate produced was unlikely to give

Journal

Nematologica – Brill

Published: Jan 1, 1985

Keywords: Nematodes; systemic chemicals; nematicide; control

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