Routine checks

To make sure your garden is at its prime, check plants regularly for signs of an aphid infestation such as young leaves turning yellow or deposits of honeydew or sooty mold. Also make sure to check under the leaves; if any aphids are present they are most likely to be found there.

Organic warfare

If your garden is under the attack of aphids, the easiest way to fight back is organically. There are a wide range of organic sprays and traps that can be bought over the counter to deal with the infestation. Though easier, these methods are more expensive than the biological means of combating the insects.

Biological Warfare

Brightly colored flowers, along with dill, fennel, mint, yarrow, clover and dandelions attract ladybugs and lacewings, both which prey on aphids. So by creating an environment that attracts them to your garden, you are ensuring that you have soldiers that will guard your garden against an aphid infestation.

These methods should ensure that your garden thrives and is pest free. Only use pesticides as a final option, for even though pesticides would get rid of the aphids it would also damage your plants and kill the insects which are beneficial to your garden.