How can I effectively control and prevent infestations of mealybugs or spider mites in my garden?

To effectively control and prevent infestations of mealybugs or spider mites in your garden, you can use natural predators like ladybugs, prune affected plants, regularly inspect plants for signs of infestation, and use insecticidal soap or neem oil as a natural remedy. Additionally, maintaining good garden hygiene and avoiding over-fertilization can help prevent infestations.