Control of downy mildew diseases on hardy nursery stock and perennial herbaceous plants

Downy mildew diseases, although sporadic, can seriously damage hebe, rose and several other major nursery stock and herbaceous perennial species. This fact sheet provides guidance on how to minimise losses by the use of clean stock plants, good nursery hygiene, avoiding favourable environmental conditions for disease development and by appropriate fungicide treatment.
Hard copies are free to HDC levy payers and dependant on your HDC Associate package, may be free or charged at a reduced rate. If you require a hard copy of this publication then please contact Louise Arculus,

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