Lime and clove can be used as mosquito repellents.
Mosquitoes reach us by our body odour. If we can prevent our body odour reaching mosquitoes, then w can be free of mosquito bites. The best way is to mask our natural body odour by using some other scent which will mask our natural odour. This can be done by directly applying a perfume,scent on our body or keeping such aromatic substances and enabling that smell to fill the room either by evaporation or fumigation. We were all using such natural methods by hanging a bunch of aromatic basil leaves at the door entrance, by fumigating the rooms using the natural substance which we use for our pooja and other rituals.(Camphor, agar bathi etc).
Modern mosquito repellents use these basic principle and additionally add a chemical that is disliked or harmful to the mosquitoes. Those chemicals are administered in smaller doses which will be sufficient inactivate or drive away mosquitoes for some period, but not harmful to humans.
As lime and clove produce aroma and can mask our body odour they serve as mosquito repellents.
As mosquitoes are more active during the evening twilight time, the tradition of smoking the rooms by using camphor or agarbathi has come. Fumigation for sometime drives away the mosquitoes. Then closing the doors and windows will keep the room free of mosquitoes for the night. Our tradition is to close the windows and doors of all rooms except the entrance door during the twilght when we light lamps and also light agarbathi etc and do the ritual of Deepaaradhana (aarati) with different lamps and camphor. The same can be consciously followed for repelling mosquitoes .
Keeping a few cloves of garlic crushed in the room can also repel mosquitoes, but it may be repelling to us too.
It is effective if we clean the floors in the evenings using an aromatic floor cleaner ,( lemon grass oil can be one such natural ingredient). However the mosquitoes are not fully driven out, once the aroma or scent tapers off, the mosquitoes will do their biting duty again. It is here that the modern repellents enable a mosquito free sleep for full night, as they have steady supply of the chemicals slowly permeating and staying long.
Once the liquid in the liquid vaporiser repellent is empty, we can use neem oil mixed with a little camphor. That will also do the same use ,in a natural way.
Elsewhere I have mentioned that even talcum powder can be used to repel mosquitoes from biting us.(Please refer forum thread:"SOS - give me back my sleep!".