Cambridge Secondary (7-9). Stage 7. MCE Science. Workbook - Unit 5: Food Chains and Food Webs - Question 47

Study this food chain: rose bush → aphid → ladybird → dragonfly. Aphids are pests for farmers. Aphids eat plants, such as roses, and can destroy these plants. Suggest what farmers could do to get rid of these pests without using pesticides that are harmful to the environment. Use the food chain as reference.