Russian Journal of Nematology (2005) 13, 89-94

So Deuk Park, Zakaullah Khan and Young Ho Kim (2005)
Damage potential and reproductive fitness of root-knot nematode on some medicinal herbs in Korea
Russian Journal of Nematology 13 (2), 89-94
Abstract: The damage potential and reproduction of root-knot nematodes, Meloidogyne hapla on medicinal herbs, Angelica dahurica, Codonopsis pilosula and Glycyrrhiza uralensis, was tested in potted soil under glasshouse conditions. Three-week-old seedlings were inoculated with initial population densities (Pi) of 1000, 2000, 3000, 4000 and 5000 second-stage juveniles (J2)/plant. Significant damage was observed on shoot and root lengths, fresh root weight and root diameter of A. dahurica, C. pilosula and G. uralensis by all Pi levels 90 day post-inoculation. Damage increased with increase in Pi. 5000 Pi caused 31.7, 34.0 and 25.2% reduction in root lengths of A. dahurica, C. pilosula and G. uralensis, respectively. Higher root galling index was observed on A. dahurica than on C. pilosula and G. uralensis at all Pi levels. At the highest Pi, root gall index was 5.0, 4.2 and 3.8 on A. dahurica, C pilosula and G. uralensis, respectively. Increasing rate of Pi exponentially reduced reproduction factor (Rf) of M. hapla on all the three species of medicinal herbs. However, the Rf was higher on A. dahurica than on C. pilosula and G. uralensis at all Pi levels.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Young Ho Kim, Zakaullah Khan

Research topic(s) for pests/diseases/weeds:
damage/losses/economics
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne hapla	Liquorice (Glycyrrhiza)	Korea-South
	Meloidogyne hapla	Codonopsis (genus)	Korea-South
	Meloidogyne hapla	Angelica (crop)	Korea-South