What are the black spots on the leaves of my chilli plants?
26+ Fungal Leaf Spot Magnolia. Fungal leaf spot (phyllosticta sp.) on magnolia. Spray applications are rarely, if ever, needed to control hop tree, horse chestnut, magnolia, leaf spot diseases caused by species of septoria.
Identifying And Treating Magnolia Tree Diseases Doityourself Com from cimg1.ibsrv.net
Have been found by the osu plant clinic. The causal organism is cephaleuros virescens, a green parasitic alga whose usual hosts are plants with leathery leaves such as cotoneasters, magnolias, hollies, rhododendrons and viburnums. Information for correct septoria identification is included, too.
Acervuli on leaf lesion under microscope.
Algal leaf spot is a foliar disease most commonly seen in warm humid climates or in greenhouses. Fungal bodies may appear as black dots in the spots, either in rings or in a central cluster. Leaf spot is a turf disease caused by fungi. Leaf spot is a fungus affecting the leaves of magnolia trees, fungicides applied early enough may prevent or halt the disease.
