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Citrus black spot is a fungal disease caused by ... The infection in leaves usually remains latent until the leaves drop, but leaf spots may be found on older leaves. ...
Alternaria citri is an ascomycete fungal plant pathogen that causes black rot in citrus plants. [1] Specifically, certain lemon, lime, orange, mandarin and grapefruit species are susceptible hosts for this pathogen.
Alternaria leaf spot of rough lemon Alternaria citri: Alternaria stem-end rot Alternaria citri: Anthracnose = wither-tip Glomerella cingulata Colletotrichum gloeosporioides [anamorph] Areolate leaf spot Thanatephorus cucumeris = Pellicularia filamentosa Rhizoctonia solani [anamorph] Black mold rot Aspergillus niger: Black root rot Thielaviopsis ...
These are the most common causes of brown spots on fiddle leaf fig foliage, plus simple tips for restoring your plant’s health.
It is responsible for the black spot disease on papaya trees. It affects generally leaves and fruits at any time. It affects generally leaves and fruits at any time. Sporodochia of Asperisporium caricae was growing under side of leaf, dark blackish brown to black, stroma well-developed, erumpent .
The pathogen causes black spot of fruit, but can also be seen attacking the plant at its crowns, roots and leaves. [3] After planting, stunting and yellowing as well as wilting may occur. [4] General symptoms of the disease in other plants can also be seen on flowers, petioles, and roots. [5] Stems are also a prominent place to see symptoms.
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Leaf spots can vary in size, shape, and color depending on the age and type of the cause or pathogen. Plants, shrubs and trees are weakened by the spots on the leaves as they reduce available foliar space for photosynthesis. Other forms of leaf spot diseases include leaf rust, downy mildew and blights. [4]