Wind damage

The wind acts mechanically on the aerial parts of the plant. It can destroy leaflets, entire leaves and stems, depending on its strength. Leaflets worn down by rubbing may sometimes be observed (photos 1 to 3).

The resistance of the plants can vary according to their stage of development; cultivar susceptibility is also a factor. Crops are more susceptible with incomplete leaf cover and when the foliage is not naturally crumpled. There is usually only a limited effect on the yield as new tissues or organs form afterwards.

In some cases, a recurrent wind will limit the subsequent development of the crop and will have a negative effect on the yield and the quality (grade) of the tubers produced.