Final answer:
The four main groups of pests are insects, animals, plant pathogens, and weeds. Examples include mosquitos, mice, bacteria, and unwanted plants.
Step-by-step explanation:
The four main groups of pests are insects, animals, plant pathogens, and weeds. Examples from each group include:
- Insects: Mosquitos, Gypsy moth, and Horse-chestnut leafminer
- Animals: Mice, raccoons, and deer
- Plant pathogens: Bacteria, viruses, and fungi that cause diseases in plants
- Weeds: Unwanted plants that compete with crops or disrupt ecosystems
Pests are organisms that cause damage to crops, humans, or other animals. Pesticides are chemicals or biological agents used to prevent, destroy, repel, or mitigate these pests.