I spotted a couple aphids today and didn't see many of my ladybugs Hangin around. I decided to do a search for aphid death spray. I ran across an article on about.com that talks about a leaf spray that is made from steeped tomato leaves. Are the alkaloids from this process safe for ladybugs? I wanted to get more lady bugs eventually, Just want to make sure this will be kosher for them once I can find some more.