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- Title
Effective concentration and range of activity of abamectin as seed treatment against root-knot nematodes in tomato under glasshouse conditions.
- Authors
CABRERA, J. Alfonso; KIEWNICK, Sebastian; GRIMM, Christoph; DABABAT, Abd el-Fattah A.; SIKORA, Richard A.
- 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.
- Subjects
ABAMECTIN; SEED treatment; ROOT-knot nematodes; PLANT nematodes; TOMATO diseases &; pests
- Publication
Nematology, 2009, Vol 11, Issue 6, p909
- ISSN
1388-5545
- Publication type
Article
- DOI
10.1163/156854109X433371