This practice has declined with the rise of synthetic insecticides.

By some estimates, the practice of allowing girls to serve may have declined somewhat from a peak a decade ago.

This practice has slowly declined with each new generation.

Religious practice declined under the restrictive policies of the Soviet period but is now flourishing.

The practice of bride price in Kenya declined rapidly during the 20th century.

But as the numbers of the dead increased, the practice declined and finally disappeared.

This practice may have declined with the advent of modern feminist attitudes.

Without completely disappearing, the practice declined with the advent of architectural modernism around 1940.

The company changed some practices and earnings again declined.

However, the practice declined as the drum beaters were looked down upon by society.