Selective Weedkiller - GCSE Biology Definition

A selective weedkiller is a chemical used to kill certain types of weeds without damaging useful plants, such as crops or grass. It works by targeting specific biological processes found in the unwanted plants, allowing desirable plants to continue growing. This helps reduce competition for light, water, and nutrients, which can improve crop yields. Selective weedkillers are commonly used in agriculture and gardening to control weed growth effectively.