Harmful Effects of Insects • Chewing on plant parts. • Sucking plant sap from plant parts. • Boring holes into plant parts. • Laying eggs in the plant. • Spreading pathogens. • Carrying and establishing other insects in/on plants.
Primary Means of Insect Control Physical: Direct removal of insects. Cultural: Practicing crop rotation, early or delayed planting of crops, use of resistant crops. Biological: Using other insects or pathogens to control pests. Chemical: Applying gases, liquids, powders, or granules to control insects.