Current Notes

Abstract

Woodiness" has been observed in the majority of established plantations in the Trans Nzoia and Sotik, and it gives every indication of becoming the Kenya producers biggest problem. There is no "cure" for the disease, and therefore it behaves planters to take every possible step to prevent its introduction. "Woodiness" is caused by a virus and, apart from the well-known woody, misshapen fruits, is characterized by the usual symptoms of virus disease. Anyone acquainted with virus' in potatoes will have no difficulty in recognizing infected vines even in the absence of woody fruits. The leaves, particularly in the region of the terminal shoots, are generally smaller than usual and twisted or puckered; also there is a pale mottling in the normal green colour of the leaves. These foliage symptoms can be recognized in seedlings. It is essential in the first place to select seed from old healthy vines and thereafter to carry out a rigorous inspection of the seedlings in the nursery. Infected plants must be removed immediately; this must be done weeks rest before replanting a selected healthy seedling. This note is intended to warn prospective passion fruit growers that the control of "woodiness" must begin before the vines are planted out.