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A Comparison of the Generation Times of and Gall Formation By Xiphinema Diversicaudatum and Longidor Us Elonga Tus On a Good and a Poor Host

A Comparison of the Generation Times of and Gall Formation By Xiphinema Diversicaudatum and... A COMPARISON OF THE GENERATION TIMES OF AND GALL FORMATION BY XIPHINEMA DIVERSICAUDATUM AND LONGIDOR US ELONGA TUS ON A GOOD AND A POOR HOST BY B. S. GRIFFITHS and D. L. TRUDGILL Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, U.K. Reproduction by Xiphinema diversicaudatum on strawberry (good host) and raspberry (poor host) and by Longidorus elongatus on strawberry (good host) and turnip (poor host) was examined in a glasshouse pot trial at 18°C. Populations of X. diversicaudatum increased 32-fold on the good host and those of L. elongatus 34-fold, while on the poor host populations of both nematodes increased 8-fold. The observed generation times for X. diversicaudatum were 23 weeks on strawberry and greater than 23 weeks on raspberry, and for L. elongatus were 17 weeks on strawberry and 21 weeks on turnip. The generation times were extrapolated into field conditions. There were more females with eggs, and more eggs per female on the good host than on the poor host. The total volume of nematode supported by a host plant only increased appreciably when L3, L4 or adults were present in the sample, and the good host supported 5 times the volume of X. diversicaudatum http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

A Comparison of the Generation Times of and Gall Formation By Xiphinema Diversicaudatum and Longidor Us Elonga Tus On a Good and a Poor Host

Nematologica , Volume 29 (1): 10 – Jan 1, 1983

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529283X00203
Publisher site
See Article on Publisher Site

Abstract

A COMPARISON OF THE GENERATION TIMES OF AND GALL FORMATION BY XIPHINEMA DIVERSICAUDATUM AND LONGIDOR US ELONGA TUS ON A GOOD AND A POOR HOST BY B. S. GRIFFITHS and D. L. TRUDGILL Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, U.K. Reproduction by Xiphinema diversicaudatum on strawberry (good host) and raspberry (poor host) and by Longidorus elongatus on strawberry (good host) and turnip (poor host) was examined in a glasshouse pot trial at 18°C. Populations of X. diversicaudatum increased 32-fold on the good host and those of L. elongatus 34-fold, while on the poor host populations of both nematodes increased 8-fold. The observed generation times for X. diversicaudatum were 23 weeks on strawberry and greater than 23 weeks on raspberry, and for L. elongatus were 17 weeks on strawberry and 21 weeks on turnip. The generation times were extrapolated into field conditions. There were more females with eggs, and more eggs per female on the good host than on the poor host. The total volume of nematode supported by a host plant only increased appreciably when L3, L4 or adults were present in the sample, and the good host supported 5 times the volume of X. diversicaudatum

Journal

NematologicaBrill

Published: Jan 1, 1983

Keywords: Xiphinema; life cycle; host parasite relations; Longidorus

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