ABSTRACT
Proper selection of a fungicide and its application at the correct dose and at the proper time are essential for the effective management of plant disease. In the application method the fungicide is delivered to the target (plant parts) where the active ingredient acts. The object of spraying or dusting is to cover the entire susceptible surface of host with a thin covering of a suitable concentration of the fungicide before the pathogen has come in contact with the host. The fungicidal application varies according to the nature of the host part diseased and nature of survival and spread of the pathogen. Usually, wettable powders or emulsifiable concentrates are diluted with water and the resultant solution is used for spraying. Seed treatment methods are broadly divided into three categories, namely mechanical methods and chemical methods. Majority of fungicides kill or inhibit the fungi responsive to them through direct effect on fungal cells or spores (conidia) after entering them.
