Locate powdery mildew on plant host. Prune off several whole leaves (fig. 1). Put the fresh leaves in a slightly inflated sealed bag (fig. 2). Send to: Powdery Mildew Survey Oliver Ellingham Harborne Building School of Biological Sciences University of Reading … Continue reading
A list of all PM species I have found in 2014 is now available on the Whiteknights biodiversity blog. Please take a look.
This gallery contains 19 photos.
Here is the presentation I delivered at the PM workshop, Kew on September 15th, 2014. It was extremely different to the almost exclusively research-based presentations, but received much interest, avenues for future growth, and new powdery mildew samples.
This morning I was lucky enough to find a sealed envelope waiting for me on my desk. I had an idea and hope of what it may contain, and was far from disappointed… In mid-May of this year the Powdery … Continue reading
Please refer to the 2015 survey for updated info. As part of the Powdery Mildew citizen science scheme, I am asking YOU to keep an eye open for powdery mildews. Powdery mildews commonly occur on garden plants, are unsightly, and … Continue reading
With approximately 800 different species of powdery mildew present on earth today, grouped into 13 genera (according to Braun & Takamatsu, 2000) of 5 tribes, combinations of the aforementioned features, as well as many less superficially obvious, are numerous. While many … Continue reading
Like any organism reproduction is key to the life of the powdery mildews. Their short generation time and mixture of asexual (self-replication) and sexual life cycles have evolved to produce the veracious organisms which blight many of our agricultural and … Continue reading
Amongst the most important visual, superficial features of the powdery mildew are their appendages. These limb-like features arising from the surface of the, sexual spore containing, chasmothecia are important for latching onto the stems and leaves of their hosts. They vary … Continue reading
After establishing itself on a host a powdery mildew can begin to reproduce. Asexual conidia (spores) are produced as 3-D protrusions, on structures called conidiophores, from the predominantly 2-D mycelial network on the surface of a host. In this aspect … Continue reading
