Downy Mildew of Sunflower (Plasmopara haistedii), a Disease Introduced and Established in India - Status Report in Relation to Quarantine

Abstract

Downy mildew of sunflower (Helianthus annllus L.) caused by Plaslllopara halstedii (Farl.) Berl. and de Toni is
potentially a destructive disea~e. It is distributed almost in all the sunflower growing countries. The disease incidence
range from traces to 50%, however, it may exceed up to 95%. In India, downy mildew of sunflower was reported
for the first time in 1984 from Latur district of Marathwada region of Maharashtra; it has spread to Karnataka,
Andhra Pradesh, Tamil Nadu, Punjab and Madhya Pradesh. The status of the disease world over, physiological
races, host range, epidemiology, detection techniques and management is discussed