lesions with a light halo on leaves, stems and glumes. In the centre of the lesions, light-coloured translucent pycnidia (fruiting bodies) with new…
particles. Damage symptoms Phomopsis sclerotioides causes grey-black spots with a dark demarcation line on cucumber roots. The lesions are slightly…
or on the ground. Sclerotia germinate at temperatures between 4 and 26 °C with an optimum between 13 and 15 °C. Germination and infection mostly take…
of) leaf surfaces and may enlarge into dark brown lesions with a light brown centre. As with powdery mildew infection, pepper plants shed the leaves…
causes water-soaked lesions with vague borders and white fluffy fungal growth on the leaves. The centre is grey-brown with a light-green edge. On the…
sporangia from which subsequently zoospores are produced. Zoospores are spores with flagellae, which enable the spores to move through water. The…
showing complex interactions with environmental conditions and host plant physiology. Typically, the lifecycle begins with the release of spores from…
example, transfer from infected plum trees with high bacterial levels in the leaves to neighbouring peach trees with the bacteria mainly in the roots…
crop entirely or, if the crop is old, only the plants in the infected area, with a substantial buffer zone. Replanting can only take place after…
the vessels of the plant and produces spores that are transported upwards with the transpiration stream. As a defence mechanism, the plant produces…
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