Disease · 4 plants in our database
Onion downy mildew
Peronospora destructor
4 plants in our databasePart of the group: downy mildews
Which plants
Where you will find it.
Signs and protection differ by plant — the exact steps are on each plant’s page.
GarlicAllium sativumLate spring and summerLeaves yellow and die back, with a mould layer that is first white, then purple.
Protection for this plant →
OnionAllium cepaLate spring and summerLeaves yellow and die back, with a mould layer that is first white, then purple.
Protection for this plant →
Welsh onionAllium fistulosumLate spring and summerLeaves yellow and die back, with a mould layer that is first white, then purple.
Protection for this plant →











