My cucumber plant has produced some nice cucumbers, but soon after the first harvest, the leaves are getting large yellow splotches and then turn brown, wither and die. What is happening?
This may be your problem. http://www.omafra.gov.on.ca/english/crops/facts/downy-mildew-a.htm Introduction Downy mildew is a serious disease of cucurbit crops grown in Ontario (Figure 1). It is caused by the fungus-like water mould Pseudoperonospora cubensis. Once established in a region, the disease can spread rapidly causing significant loss of fruit quality and yield.
This may be your problem. http://www.omafra.gov.on.ca/english/crops/facts/downy-mildew-a.htm Introduction Downy mildew is a serious disease of cucurbit crops grown in Ontario (Figure 1). It is caused by the fungus-like water mould Pseudoperonospora cubensis. Once established in a region, the disease can spread rapidly causing significant loss of fruit quality and yield.