Pakistan Journal of Nematology (2005) 23, 265-271

A.E. Ismail and W.M.A. El-Nagdi (2005)
Vertical and horizontal distribution of the nematodes associated with Matricaria chamomilla and Jasminum grandiflorum under flood irrigation system in Egypt
Pakistan Journal of Nematology 23 (2), 265-271
Abstract: Under flood irrigation regime, the vertical and horizontal distributions of the coinhabitant nematodes associated with chamomile and jasmine were investigated. Generally, the highest population density of nematodes viz. Helicotylenchus sp., Tylenchorhynchus sp., R. reniformis and Tylenchus sp., on chamomile were concentrated at soil depth layers of 0-15 cm and 16-30 cm at the horizontal distance of just beneath the plant base (zero cm) and 5 cm from the plant stem. Also, the highest density of R. reniformis, Tylenchus sp., and M. incognita were found at soil depth layers of 0 - 15 cm and 16 - 30 cm at the horizontal distances of zero cm and 30 cm from the jasmine trunk. However, the highest population of Helicotylenchus sp., on jasmine trees was found at the same two soil depths at only a distance just beneath the plant trunk. These sites should be considered as the standard or best sampling points for such coinhabiting nematodes.
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Database assignments for author(s): Ahmed El-Sayed Ismail, Wafaa M.A. El-Nagdi

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne incognita	Jasmine (Jasminum)	Egypt
	Rotylenchulus reniformis	Jasmine (Jasminum)	Egypt
	Rotylenchulus reniformis	Chamomile (Matricaria chamomilla)	Egypt