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Grapevine
Nematode Pests of Fruit Crops and their Management - Grapevine |
II. GRAPEVINE Grapes are one of the cosmopolitan crops of agriculture, providing fruit, resin and wine to most of the world. There are many nematode species that attack grapes. The major ones are root knot nematode (Meloidogyne spp.), root lesion nematode (Pratylenchus spp.) and Xiphinema spp. The nematodes of minor importance are the reniform nematode (Rotylenchulus reniformis), the citrus nematode (Tylenchulus semipenetrans) and Paratrichodorus minor. All these nematode species reduce the effective root system through killing of many feeder roots. a. Root-knot nematode (Meloidogyne spp.) Of the six species of root-knot nematode reported on grapes in various parts of the world, M. incognita, M. javanica, M. arenaria and M. hapla, are most widely distributed. Distribution In India M. incognita and M. javanica are prevalent in grape cultivating regions of Tamil Nadu, Karnataka, A.P., Haryana, Punjab and Maharashtra. Nature of Damage:
Distribution The nematode exists in almost every grape producing region. Different species of this nematode prevail in grapes in different parts of the globe. The most prevalent are P. vulnus, P. scribneri, P. brachyurus and P. minyus. Pratylenchus coimbatorensis has been reported from South India.
Distribution This nematode is a pest of grape vine world wide. Though number of Xiphinema spp. have been found from grape vines, only two viz., X. index and X. americanum are found to be of pathogenic significance. While X. index has been reported from Europe, South Africa, Victoria, USA, North Africa, Iraq and South America, X. americanum has been recorded from Indian vineyards.
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Last modified: Wednesday, 20 June 2012, 9:11 AM