One of my coconut trees shows triangular cut leaves. Why it happens/ occurs like that?
This is mainly due to Rhinocerous beetle infestation. This can be controlled by applying a hand full of sand to the growing tip. Keep coconut toddy mixed with Methyl dematon or Monocrotophos 2 ml/lit during the night time to trap the adult beetles. Manure pits near to the coconut plantations must be avoided. If it is so, mix or frequently turn the manures to collect the grubs of Rhinoccerous beetles and destroy them to control the insect population.
