Q.My Cabbage Is Infested By Gray Aphids.
I sprayed the plant with a mixture of milk and water, but it didn`t solve the problem very well. What can I do? Should I buy some product at the gardening shop?
Certified GKH Gardening Expert
Purchasing extra product may, or may not be necessary. There are several treatments that I could recommend.
One effective method is to use a mixture of water and dish soap. Simply mix a few drops of dish soap with water in a spray bottle and spray it directly on the affected plants. The soap will suffocate the aphids and help control their population. Another option is to use neem oil, which is a natural insecticide. Dilute neem oil with water according to the instructions on the bottle and spray it on the plants. Neem oil not only kills aphids but also acts as a repellent, preventing them from returning. Additionally, you can introduce beneficial insects like ladybugs or lacewings to your garden. These insects feed on aphids and can help control their population naturally. Regularly inspecting your plants and removing any heavily infested leaves or stems can also help prevent the spread of aphids.
Here are some articles to help:
https://www.gardeningknowhow.com/plant-problems/pests/insects/homemade-aphid-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-aphids-and-ants.htm