aphids on my lupines

Question

I have aphids on my lupines. Is there a homemade spray that I can use to eliminate them? If not, what do you recommend? I have a full sun garden with a big variety of plants and because of our warm and abundance of rain this year, my plants have multiplied and grown huge. Does this contribute to aphids when plants become crowded?

Answer 1

This article has a few recipes you can try:
https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm