A study of the cause of the mango black tip disorder.
Zhang ChengLin, Huang HuiBai, Kuang YanHua
Author Affiliation: Department of Land Resources and Environmental Science, South China Agricultural University, Guangzhou 510642, China.
Scientia Horticulturae 64 : 49-54
Abstract : Causative factors of the fruit black tip disorder (BT) in mango have been studied in Guangdong Province. Dipping fruits in 150 or 600 mg fluoride/kg solutions induced symptoms similar to that of the black tip disorder. The F content of the fruits with artificially induced symptoms was about 25% higher than that of control (healthy) fruits. The F content of BT fruits from an affected orchard was twice as high as that of the normal (healthy) fruits from an unaffected orchard. The leaf F content of affected trees was about 6 times as much as that of the control. This study has provided evidence that F in fumes emitted from adjacent brick kilns was the direct causative factor of the mango black tip disorder.