Why Turmeric and Kumkum in Door Frames

Some of the Hindu Traditions
Tradition 1 – The toe ring
Tradition 2 – Why Turmeric and Kumkum in  Door Frames
Tradition 3 – Why Hindu Put Vibuthi in Forehead (Holy ash)
Tradition 4 –Why Should we light a lamp with Gingelly oil
Tradition 5 – We should not sleep towards North Facing (head should not be in north), why?

Tradition 2 – Why Turmeric and Kumkum in  Door Frames
Why Indian House Door frames design with Turmeric and Kumkum
Most Indian Houses front door or Door frames will be designed with Turmeric and KumKum, how many of them noticed that? 

1. Turmeric widely used for anti-aging
2. Prevent from insects other small creatures