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Powdery mildew of lilac leaves an opaque-white discoloration on the leaves of S. vulgaris. This process is predominant at the end of the season but can begin to take place during new growth. [ 7 ] Eventually the fungal pathogen contributes to the damaging and early senescing of the infected leaves.
For diseases of foliage plants, see the following lists: List of Croton diseases; List of Ficus diseases; List of foliage plant diseases (Acanthaceae) List of foliage plant diseases (Agavaceae) List of foliage plant diseases (Araceae) List of foliage plant diseases (Arecaceae) List of foliage plant diseases (Araliaceae) List of foliage plant ...
Candidatus Phytoplasma fraxini is a species of phytoplasma, a specialized group of bacteria which lack a cell wall and attack the phloem of plants. [1] This phytoplasma causes the diseases ash yellows and lilac witches' broom.
Once it enters the plant through a leaf's stomata or necrotic spots on either leaves or woody tissue then the disease will start. [17] The pathogen will then exploit and grow in intercellular space causing the leaf spots and cankers. P. syringae can also survive in temperatures slightly below freezing. These below freezing temperatures increase ...
A list of known hosts is at the bottom of this page. The symptoms are similar to most wilts with a few specifics to Verticillium. Wilt itself is the most common symptom, with wilting of the stem and leaves occurring due to the blockage of the xylem vascular tissues and therefore reduced water and nutrient flow.
Fungal diseases; Common name: Scientific name: Plants affected: Alternaria leaf spot Alternaria panax: B, D, Fl, P,S Anthracnose Colletotrichum trichellum: H Cercospora leaf spot Cercospora spp. B, S Damping-off Pythium spp. B,Fj,S Gray mold Botrytis cinerea: H Phyllosticta leaf spot Phyllosticta concentrica. Discochora philoprina [teleomorph] H
The Hungarian lilac belongs to the genus Syringa, which is distributed across Eurasia, with its centre of diversity in East Asia.The Hungarian lilac is one of only two species of the genus in Europe, the other being the common lilac (Syringa vulgaris) with a more southerly distribution on the Balkan Peninsula and the southern part of the Carpathians.
Bacterial diseases; Common name: Scientific name: Plants affected: Bacterial leaf spot Erwinia carotovora subsp. carotovora: D, Ds Bacterial leaf spot E. chrysanthemi: D, Ds Bacterial leaf spot E. herbicola: Ds Bacterial leaf spot Pseudomonas sp. Ds Erwinia blight Erwinia carotovora subsp. carotovora: C, D, S Erwinia blight E. chrysanthemi: C, D, S