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向日葵霜霉病在我国迄今未见报导。1960—1962年,在黑龙江省牡丹江和合江农垦区进行病害稠查时,发现这一病害,在上述地区普遍发生,个别地区为害较重。1962年黑龙江八一农垦
Sunflower downy mildew has not been reported in our country so far. From 1960 to 1962, the disease was found thickly in the Mudanjiang and Hejiang reclamation areas in Heilongjiang Province. It was found that this disease occurred frequently in these areas, and the damage was heavier in some areas. 1962 Heilongjiang August Reclamation