21. Downy mildew is a disease of major importance on the horticultural " Brassica " species.22. It is registered for the control of black rot, powdery mildew and suppression of downy mildew . 23. Downy mildew is a major disease of onion.24. Downy mildew is a moderately important disease of sugar beet ( " Beta vulgaris " ).25. Pirotta identified the first outbreaks of " Plasmopara viticola " ( grapevine downy mildew ) in Italy. 26. Its susceptibility to downy mildew is particular high due to the sunflower's way of growth and development. 27. Philippine downy mildew can be found in China, India, Indonesia, Nepal, Pakistan, Thailand, and in the Philippines. 28. Most of them are called downy mildews . 29. _Diseases : Fungal wilts, downy mildew . 30. He was also responsible for protecting grape vineyards from downy mildew fungus ( " Plasmopara viticola " ).
