1. Use insecticidal soap. Insecticidal soap is a great way to get rid of aphids without having to use harsh chemical sprays. Simply mix some liquid soap with water in a spray bottle and use it on your plants as needed. It works by blocking the aphid’s respiratory system, ultimately killing them off.
2. Try natural predators. Many beneficial insects like ladybugs, lacewings, and hoverflies naturally feed on aphids and other soft-bodied pests. Encourage them to stay around your garden by planting their favorite food sources like dill, parsley, and fennel.
3. Plant resistant varieties. Certain plant varieties are naturally more resistant to aphids than others. Plant these around the perimeter of your garden for added protection against infestation. Examples include marigolds, geraniums, sunflowers, lavender, petunias, garlic, and nasturtiums.
4. Maintain healthy soil conditions. Healthy soils make for healthier plants which can better resist attacks from pests like aphids. Amend your soil with organic compost to ensure that your plants are getting all the nutrients they need to thrive and stay strong against pests!
5. Install floating row covers or plastic mesh barriers if needed - especially when dealing with large scale infestations of aphids on brassicas such as cabbage and kale. The mesh should keep adult insects out while still allowing light through so the plants don't suffer too much during coverage times!
Using these tips will help keep your garden free from pesky pests like aphids! Happy gardening!