Effect of three systemic nematicides aginst root-knot nematodes in a cardamom nursery
Authors
S. S. Ali
Abstract
In the regions of South India where cardamom is cultivated, it is a common practice to establish cardamom nurseries within plantations where a constant water source is available. In order to establish such nurseries, the undergrowth and overhead shade is cleared away to get adequate light for emerging seedlings. Since land and a water source are limiting factors, the sites of nursieres generally remain unchanged for many years. Such repeated cropping favours the build up of nematode populations. When infected seedlings are transplanted into production fields, their establishment and growth are poor. Several infected seedlings are the cause of the widespread distribution of nematodes over a large area of a plantation creating additional production hazards. The nematicidal control of root-knot nematodes was investigated in heavily infested primary nursery beds.