Above-ground symptoms of plants infected by the reniform nematode are similar to those associated with one or more of the following conditions: 1) lack of proper nutrients, 2) chronic moisture stress, and/or 3) poor soil aeration.
The above-ground symptoms appear as moderate to severe leaf chlorosis and plant stunting. Some wilting may occur during periods of peak transpirational stress on the plant.
Below ground symptoms are not readily detectable by the untrained observer. However, reniform nematode presence on the roots may be observed with the aid of a 10x hand lens.
The small sand-like bodies which remain attached, after the root system is carefully washed, are egg masses of the nematode.
Fruits produced are smaller than normal and may be slightly insipid.
Management
Planting stocks certified free of infestation.
Application of Pseudomonas fluorescens @ 50g/vine.
