Mangaluru: The ICAR-Central Plantation Crops Research Institute (CPCRI) Kasaragod has issued an advisory to prevent the spread of fruit rot disease. This year, arecanut fruit rot, or koleroga, is rampant in a few places due to incessant rain. For those who could not take up spraying during July, the prevalence is quite high. Therefore, it is important to take up control measures timely whenever there is a break in rainfall.
The following measures may be immediately adopted to prevent the disease and further spread.The CPCRI urged farmers to spray 1% Bordeaux mixture or Mandipropamid 23.4% SC (1ml per litre) to all the bunches, even if fruit rot has not yet been noticed in the garden. Wherever fruit rot has been noticed in severe form, spray both crown and bud regions to protect the trees from bud and crown rot. Do not mix any other fungicides/pesticides/nutrients. The Bordeaux mixture should be prepared fresh, the pH of the preparation should be neutral (pH7), and it is advised to add a sticker-cum-spreader@1ml per litre for spray preparation. Ensure proper mist spray of the fungicide.
Create proper drainage in the garden to avoid water stagnation, and remove the fallen diseased nuts from the garden. Apply dolomite/lime@1kg per palm (or based on soil test values) during Sept, and after two to three weeks, apply recommended manures and fertilisers viz. 150g urea, 130g rock phosphate, 160g muriate of potash, and 12kg FYM per tree.
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Read More: Fruit Rot: Advisory for Management of Fruit Rot in Arecanut | Mangaluru News