EFFECT OF SOME PLANT EXTRACTS AND ESSENTIAL OILS ON ROOT-KNOT NEMATODE Meloidogyne incognita AND YIELD COMPONENTS OF TOMATO CROP | ||||
| Assiut Journal of Agricultural Sciences | ||||
| Article 6, Volume 39, Issue 3, October 2008, Page 67-76 PDF (297.61 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajas.2008.269855 | ||||
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| Authors | ||||
| Kamal A. M. Abo-Elyousr1; Magd El-Morsi Awad2; M. A Abdel Gaid3 | ||||
| 1Plant Pathology Department, Faculty of Agriculture, Assiut University, Assiut, Egypt | ||||
| 2Plant Pathology Department, Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| 3Horticulture Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| Abstract | ||||
| The effect of plant extracts of eucalyptus (Eucalyptus chamadulonsis) , garlic (Allium sativium), marigold (Tagetes erecta) and neem (Azadirachta indica) and essential oils were tested against the root-knot nematode, Meloidogyne incognita. All tested treatments had nematicidal effect on nematode juveniles in vitro after 24 and 48 hours from exposures. The highest percentage of nematode mortality was achieved by application of neem (65.4%), essential oils (64.4%) and marigold (60.5%), followed by garlic and eucalyptus (38.7- 39.5 %). Under greenhouse and field conditions, neem extract and essential oils treatments were more effective in reducing population numbers of the M. incognita in soil and root gall index compared to other treatments. Also, in field experiments the highest reduction of root gall index was achieved by neem treatment and essential oils, 44.2 and 32.6% respectively. | ||||
| Keywords | ||||
| Garlic; Marigold; Neem; Eucalyptus; Essential oils; Meloidogyne; Tomato | ||||
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