I am Anshuman from Ahmedabad, Gujarat, India (23Ã‚Âº N, 72Ã‚Âº E).
I have a 3 Ã¢â‚¬â€œ 4 year old medium sized guava tree in my garden that has just started flowering. However, I have been observing that some insects are eating away its leaves. I haven't been able to identify the insects but there aren't any eggs on the backside of the leaves. The picture of the eaten leaves is attached. I think these leaves are eaten by some black coloured flies. I tried using Methyl Parathion 2% but am not sure if it is working. What should I do?