Admittedly, I'm a rookie, which is why I suggested you contact your extension office. I've taken a heck of a lot of science classes in my life but they were all related to chemistry and physics, human anatomy and physiology, pharmacology. Amazing that I was never required to learn anything about plants. More amazing yet that I manage to have a pretty garden most of the time.
I tried to have an all-organic yard for quite a few years, and it was awful. Weeds and bugs were taking over. And I discovered that most organic information I found was impassioned anecdotal evidence rather that actual scientific research. I guess I don't know where to look?
I still try to keep my yard at least earth friendly if not strictly organic. I don't use pesticides or strong chemical fertilizers. I stick to more natural based stuff like fish fert, some Espoma products, and compost. But I no longer rule out a little Roundup or Preen. And while I haven't resorted to using pesticides again, the bugs are winning the battle so far.
Karen
