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Sweet orange scab Elsinoë australis: Thread blight Corticium stevensii Pellicularia koleroga. Trichoderma rot Trichoderma viride Hypocrea sp. [teleomorph] Twig blight Rhytidhysteron rufulum: Ustulina root rot Ustulina deusta Nodulisporium sp. [anamorph] Whisker mold Penicillium ulaiense. White root rot Rosellinia sp. Rosellinia necatrix
Orange juice prices 1973 - 2022 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.
Citrus canker is a disease affecting Citrus species caused by the bacterium Xanthomonas (X.axonopodis; X. campestris).Infection causes lesions on the leaves, stems, and fruit of citrus trees, including lime, oranges, and grapefruit.
Other symptoms include leaf epinasty, stunting, and necrosis of the leaf midvein. Affected trees will show rootstock "shelling" where the bark peels off of the rootstock – the lower tree that the main orange cultivar was grafted onto. Generally trifoliate orange rootstocks and their hybrids are susceptible. [4]
Citrus tristeza virus (CTV) is a viral species of the genus Closterovirus that causes the most economically damaging disease to its namesake plant genus, Citrus.The disease has led to the death of millions of Citrus trees all over the world and has rendered millions of others useless for production. [1]
These trees must be removed because those that are declining and stressed will often have off season bloom. If there is more than one age of fruit present on the tree, it is possible for the asexual spores on the older fruits to be transferred to young fruits, thereby intensifying the disease.
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A double graft union of diamante citron upon sour orange rootstock. Sour orange: the only rootstock that truly is an orange (the Citrus × aurantium or bitter orange). It is vigorous and highly drought-resistant. Poncirus trifoliata: a close relative of the genus Citrus, sometimes classified as Citrus trifoliata.