Nematology (2009) 11, 909-915

J. Alfonso Cabrera, Sebastian Kiewnick, Christoph Grimm, Abd el-Fattah A. Dababat and Richard A. Sikora (2009)
Effective concentration and range of activity of abamectin as seed treatment against root-knot nematodes in tomato under glasshouse conditions
Nematology 11 (6), 909-915
Abstract: The objectives of this study were to determine the efficacy, range of activity and effective concentrations (EC₅₀ and EC₈₀) of abamectin as a seed treatment of tomato against Meloidogyne incognita, M. arenaria and M. javanica. The study revealed that abamectin seed treatment at concentrations ranging between 0.3 and 1 mg a.s. seed^-1 is highly effective against the three species of root-knot nematodes, retaining its efficacy in the soil for 8 weeks. The highest EC₅₀ found was reached at 0.2 mg a.s. seed^-1. The highest EC₈₀ for the number of egg masses per g root in the three Meloidogyne species was attained at 0.51 mg a.s. seed^-1. Abamectin as a seed treatment is promising for the control of root-knot nematodes in the field since only low amounts of active ingredient are required to give adequate protection in the most sensitive stages of tomato root growth and development.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Sebastian Kiewnick, Christoph Grimm, Abdelfattah A. Dababat, Richard A. Sikora

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne javanica	Tomato (Solanum lycopersicum)
	Meloidogyne incognita	Tomato (Solanum lycopersicum)
	Meloidogyne arenaria	Tomato (Solanum lycopersicum)