Black Tip of Mango
Black tip is a serious disorder that is capable of causing considerable set back to the grower. Among the commercial cultivars, Dashehari is most prone to the disorder, while Lucknow Safeda is least.
The infection of fruits is initiated right at marble stage, with a characteristics yellowing of tissues at the distal end.
Gradually, the color intensifies into brown and finally black.
At this stage, further growth and development of the fruit is retarded and the black ring at the tip extends toward the upper part of the fruit.
Black tip disorder has generally been detected in orchard located in the vicinity of brick kilns.
A spray of 1% borax at the tine of fruit set, followed by two more sprays at 10 day intervals might be useful in controlling the disorder.
Sprays of washing soda (0.5%) and caustic soda (0.8%) were found to be equally good in minimizing the disorder.
Irrigation in the orchards after fruit should be maintained at regular intervals to reduce the severity of black tip; this will also increase the fruit size.
Black Tip of Mango
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