In this article we will discuss about diseases of plants and its control. 1. Leaf Spot and Blight (Alternaria sp.): The small dark coloured spots appear on the leaves, which spread rapidly to form circular legions. In humid season, concentric dark rings appear. In severe cases, the cauliflower develops brown colour. Control: The hot water treatment, as in the case [...]
In this article we will discuss about the measures and principles used for controlling plant diseases. Measures to Control Plant Diseases: Till the appearance of disease symptoms the pathogen has taken command over the plant. In order to avoid such a situation it is essential to protect plants from disease i.e., protective and preventive measures should be undertaken. Therefore it [...]
Certain chemicals are toxic to pathogen. Such chemicals check the growth and development of pathogens and kill them. Based on the nature of the pathogen against which these chemicals are used, the latter have been classified into fungicides, bactericides, nematicides, viricides etc. Chemical or physical agents (Heat, UV rays etc.) having the potential to kill fungal pathogen come under this [...]