Photodynamic inactiation of dematiaceous phytopathogenic fungi with emphasis on Alternaria SPP., the casual agent of early blight of tomato

Abstract

Vegetables constitute the most important and inexpensive component of a balanced diet due to their high nutritive values indispensable for the body. However, the farmers face heavy yield losses both in their quality and quantity of these crops due to various diseases caused by dematiaceous fungi. The use of fungicides causes serious health hazards to human beings and also causes environmental pollution. Emphasis is given on other methods of disease control through the employment of photodynamic