Idukki situated on the Western Ghats, one of the mountainous districts in Kerala, is well known for producing black pepper (pepper nigrum) as a mono-crop. During around last fifty years of continues and unscientific farming, without preserving soil, the productivity of this crop declined drastically. Now, though the soaring price has been conducive for mitigation, the situation is assumed to have the proportion of a crisis which is not compatible with the present paradigm of sustainable development and the present motto of “Evergreen Revolution” in agriculture. This paper examines various farm practices which are unsustainable to the productivity of black pepper in the Idukki district. A multiple linear regression model has been used to analyse the impact of various farm practices on productivity.