Lemon tree [Update]

Question

I have taken aware of the mealybugs infestation (thanks to BushDoctor) and I have been spraying neem oil on it. Should I do it thoroughly, like everywhere? I heard the plant can absorb neem oil and use it for themself, is that true? Anything else I should do to help it atm?

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Answer 1

Yes, make sure you treat the tree, leaves and also the undersides of the leaves.
Also remove the fallen leaves from the soil and dispose of.