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| Control Effect of Chitin Degradation Liquid on Tomato Root-knot Nematodes |
| ZHANG Zhi-hong, FENG Hong, LI Hua-xing*, ZHANG Xin-ming, YUAN Ying-ying |
| College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, Guangdong, China |
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Abstract his paper mainly studied chitin degradation effect of different combination of several microbes（Bacillus spp. and Saccharomyces spp.）and control effect of chitin degradation liquid（CDL）on tomato（Lycopersicum esculentum Mill.）disease of root-knot nematodes by artificially inoculating Meloidogyne incognita. The results indicated that mixture of 4 Bacillus strains and a Saccharomyces strain had best degradation effect on chitin with the lowest viscosity, the highest chitinase activity. CDL could control tomato root-knot nematodes disease effectively, decrease root-knot rate and root-knot index. Therefore，control effect was 54.29 %, which was 2.58 times compared with the treatment of chitin liqiud medium. CDL could also improve the populations of bacteria, fungi and actinomycetes in soil.
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Received: 03 February 2010
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Corresponding Authors:
LI Hua-xing
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