Horticultural crops :: Fruits:: Mango
Mango malformation : Fusarium moliliforme var. subglutinans |
Symptoms
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Three types of symptoms: bunchy top phase, floral malformation and vegetative malformation.
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In bunchy top phase in nursery bunching of thickened small shoots, bearing small rudimentally leaves. Shoots remain short and stunted giving a bunchy top appearance.
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In vegetative malformation, excessive vegetative branches of limited growth in seedlings. They are swollen with short internodes forming bunches of various size and the top of the seedlings shows bunchy top appearance.
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In malformation of inflorescens, shows variation in the panicle. Malformed head dries up in black mass and persist for long time.
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Secondary branches are transformed into number of small leaves giving a witches broome appearance
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conidia of Fusarium moliliforme var. subglutinans |
Malformation on mango inflorescens |
Management:
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Diseased plants should be destroyed
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Use of disease free planting material
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Incidence reduced by spraying 100-200ppm NAA during October.
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Pruning of diseased parts along the basal 15-20 cm apparently healthy portions.
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This is followed by the spraying of Carbendazim (0.1%) or Captafol (0.2%).
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