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Bacterial fruit blotch (BFB) affects cucurbit plants around the world and can be a serious threat to farmers because it spreads through contaminated seed. BFB is the result of an infection by Gram-negative Acidovorax citrulli bacteria, which has only been recently studied in detail. [ 1 ]
Even if these watermelons aren't actually fermenting, Dr. Steve Reiners, a professor of horticulture in the School of Integrative Plant Science at Cornell, says a “bacterial or fungal/mold ...
Bacterial diseases; Angular leaf spot Pseudomonas amygdali pv. lachrymans: Bacterial fruit blotch/seedling blight Acidovorax avenae subsp. citrulli = Pseudomonas pseudoalcaligenes subsp. citrulli: Bacterial leaf spot Xanthomonas campestris pv. cucurbitae: Bacterial rind necrosis Erwinia spp. Bacterial soft rot: Erwinia carotovora subsp ...
Gastric antral vascular ectasia (see Watermelon stomach) GBS Guillain–Barré syndrome: GBS disease Group B Streptococcal disease: GCE Glycine encephalopathy: GD Gestational diabetes: GERD Gastroesophageal reflux disease: GI Gastrointestinal: GIB Gastrointestinal bleeding: GN Glossopharyngeal neuralgia: GORD Gastro-oesophageal reflux disease ...
Temperature and moisture are the most important factors in the spread of gummy stem blight. For watermelon and cucumber, the best temperature for infection is around 25 °C; for melon the best temperature is around 20 °C. [2] Continual leaf wetness from 1–10 hours is necessary for germination, sporulation, and colonization of conidia. [4]
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Pseudomonas syringae overwinters on infected plant tissues such as regions of necrosis or gummosis (sap oozing from wounds on the tree) but can also overwinter in healthy looking plant tissues. In the spring, water from rain or other sources will wash the bacteria onto leaves/blossoms where it will grow and survive throughout the summer. [16]
Lemon sieve-tube necrosis Unknown, but hereditary Lime blotch = wood pocket Inherited chimeral agent Membranous stain Cold temperatures Mesophyll collapse Unknown Oleocellosis Physiological Postharvest pitting Physiological Puffing Physiological Rind breakdown Physiological Rind staining Physiological Rind stipple of grapefruit Environmental