Peronospora
Peronospora :- 1. Classification:- Kingdom:- Myceteae Division:- Mastigomycota Sub division:- Diplomastigomycotina Class:- Oomycetes Order:- Peronosporales Family:- Peronosporaceae Genus:- Peronospora 2. Habit and Habitat:- > Most of the Peronospora species are highly specific to their hosts and can generally be found anywhere the host plant grows, or is being cultivated. > A large portion of their life cycle is spent inside their host plant. > Many species of Peronospora are seedborne pathogens, so the worldwide spread of Peronospora crop-plant pathogens is likely to be a result of unknowingly trading infected seeds to new areas. > There are also many Peronospora species that are spread by wind currents, which allows them to disperse over large distances. > Peronospora species prefer humid air and cool temperatures. > It causes downy mildew disease in crops. i. P. brassicae:- Downy mildew of Mustard. ii. P. destructor...