Please help. We have a massive infestation of small black aphids at our home in Apple Valley. They are all over our deck, deck plants, grill, in the grass and on a few of the surrounding trees. I have tried to spray with soapy water and insecticidal soap but it hardly seems to make a dent in the population. Please advise on options to get rid of this problem and it has impacted our summer outdoor enjoyment. Thank you
Make sure you've got aphids. You should see them mostly feeding on plants, and they leave a sticky residue. Boxelder bug nymphs look similar, but have some red on them.
Spraying aphids off with water - repeatedly - is probably the best way to deal with them. Insecticidal soap should also work. In the future, monitor your plants more closely so you can catch an infestation before it becomes a problem. Here is our publication on aphids: