If an insecticide is effective against a wide variety of insects, it is called?

An insecticide that is effective against a wide variety of insects is classified as a broad spectrum insecticide. This type of insecticide targets multiple species across different groups, making it particularly useful for dealing with diverse pest problems. Broad spectrum insecticides can eliminate various pests at different life stages, offering a more comprehensive approach to pest control compared to those that target a limited range of insects.

In contrast, selective insecticides are designed to affect only specific species or groups, minimizing harm to beneficial organisms. Systemic insecticides are absorbed by plants and can affect insects feeding on those plants but do not necessarily imply a broad spectrum of activity across different insect groups. Narrow spectrum insecticides target only a limited range of insect pests, further differentiating them from broad spectrum options. Understanding these classifications helps in the responsible selection and application of insecticides in pest management strategies.