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Category Archives: Plant Pathology Research Group
Shuttlecocks – fungi designed them first!
At this time of year the fruiting bodies of the powdery mildew species, Phyllactinia guttata, are easy to find on the underside of hazel leaves (Corylus avellana) on campus. The minute fruiting bodies – known as clasmothecia – can be seen as … Continue reading
Posted in Fungi, Plant Pathology Research Group, Plants
Tagged Corylus avellana, hazel, Phyllactinia guttata, Powdery Mildew
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Looking down 2
Under some of the oak trees on campus, as well as the fallen leaves, tiny pale discs are appearing. Sometimes these are present in large numbers. They show up particularly well on tarmac pavements. These are button galls which were … Continue reading
Ideal home or revolting distortion?
If you need a safe place to live, why not get a home built to your own specifications? That’s what the larvae of Dasineura sisymbrii, a kind of gall midge do. The presence of the larvae amongst the developing flower buds … Continue reading
Rusts affect weeds as well as crops!
A species of plant that is present on campus in greater numbers this year is Black bindweed, Fallopia convolulus. It has appeared in quite large numbers behind the Agriculture Buildings and also around the Harborne Building.
Marble galls on oak
Early autumn is a great time to go looking for galls. Most have had time to develop but those on leaves are still on the trees for easy spotting. Two of the larger galls on oak are Knopper galls and … Continue reading
Posted in Fagaceae, Flowering Plants, Galls, Insects, Plant Pathology Research Group
Tagged Andricus kollari, Marble gall, Quercus robur, wasp
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Rusty bluebells
Like many other plants bluebells suffer from a rust disease. Bluebell rust causes yellowed areas on the leaves filled with dark brown/black pustules. Some rusts have as many as five different kinds of spores in a complicated life-cycle that can … Continue reading
Miner Matters: Eric Carle revisited?
After reading Fay’s blog on the holm oak (Quercus ilex) under attack, I – like you – was in a better position to look for and recognise leaf-mining beasties on campus. What better way to follow her blog than to … Continue reading
Posted in Animals, Fagaceae, Insects, Lepidoptera, Moths, Plant Pathology Research Group, Plants
Tagged blotch, E. heringella, Ectoedemia heringella, entomology, frass, gallery, Holm oak, Identification, leaf miner, leaf-mine, lepidoptera, microscopy, Pathology, Quercus ilex, Waheed Arshad
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White mould on daffodils
Daffodils suffer from a number of diseases. White mould, caused by Ramularia vallisumbrosae, can be a problem for daffodil growers in the South-west of England. It was first found in East England in 2001. The disease occurs occasionally on campus. … Continue reading
Posted in Flowering Plants, Fungi, Plant Pathology Research Group, Plants
Tagged Daffodil, Narcissus, Ramularia vallisumbrosae
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Under attack!
Holm oak (Quercus ilex) is a Mediterranean tree species that was introduced to Britain in the 1500s. Unlike our native oak species, Holm oak is evergreen and holds its leaves all year round. It’s latin name, ilex, refers to the fact … Continue reading