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Citrus black spot is a fungal disease caused by Phyllosticta citricarpa ... and China citrus is of particular importance due to the large role it plays in ...
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 ...
Citrus greening was first found in 2005 in the US and has cut the Orange tree production in half [2] [3] Citrus greening disease [4] (Chinese: 黃龍病; pinyin: huánglóngbìng abbr. HLB) [5] is a disease of citrus caused by a vector-transmitted pathogen. The causative agents are motile bacteria, Liberibacter spp.
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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Without proper management, the disease can lead to huge losses for citrus growers. In 1901, 10 to 30% of citrus crops in California were lost due to Alternaria citri. Another source states that in India, between 1988 and 1990, more than 20% of mandarins in transport were lost to the disease. [10]
Image credits: historycoolkids The History Cool Kids Instagram account has amassed an impressive 1.5 million followers since its creation in 2016. But the page’s success will come as no surprise ...
Diaphorina citri, the Asian citrus psyllid, is a sap-sucking, hemipteran bug now in the taxonomic family Liviidae. [1] It is one of two confirmed vectors of citrus greening disease. [2] [3] It has a wide distribution in southern Asia and has spread to other citrus growing regions.