The sprays will not harm nearby plants, people or mammals.

Could I control them without harming other plants by repeatedly cutting the leaves to deprive the roots of nourishment?

You can probably pull up the worst sections without harming more deeply rooted plants.

They are sucking invaders which harm crops and ornamental plants.

Yazidis are not allowed to harm plants or animals in the valley.

Water pollution by industries that adds effluent which harms plants, animals, and humans.

Can you tell me if these aphids will harm these trees and plants?

Conceivably, they can even harm plants and pets.

He/she asks if they will harm plants and what should be done about them.

If pesticides reach waterways, they may harm fish, plants, and other living things.