Good morning, dear friends @sanjeevm
It's great to know that your wife and son will be taking care of the garden in your absence. They'll undoubtedly do a great job. I wish them much success.
Regarding your question, I believe you're wearing long-sleeved clothing to avoid the sun and insect bites.
Have a nice day.
That's correct, to protect from mosquito bite, thank you so much.