Host range of Cuscuta reflexa Roxb. in the Kathmandu Valley, Nepal.
A survey of Cuscuta reflexa was made at 20 sites in the Kathmandu Valley where it is a common plant parasite. A total of 39 plant species, representing 28 families, is reported as being either primary (13 species) or secondary hosts (26 species). Duranta repens was found to be the most susceptible host plant showing the highest intensity of parasitism. Haustorial development occurred on 37 species but was not present on two grasses. A positive correlation existed between the intensity of infestation, status of the host and haustorial development.