Dead plant material obviously also includes vegetables and compost.
Amazingly there are over 4,000 species of termites, and about 10% of these (400) are significant risks as infestations. This is why termite control is so regularly necessary. Once you get a termite infestation it is highly important to get termite control as they can have many bad effects on your property. For instance they can cause structural damage to your buildings (and particularly sheds and log cabins), can kill crops and plantation forests, and can cause other problems. They are major detrivores and it is important to recycle wood and other plant matter.
Termites live in colonies and in maturity these colonies will be made up of several hundred or even several million individual termites. It is very easy then to see that termites spread incredibly quickly and why termite control is so important for any business or home.