Linden Trees with aphids

Hi. We have several linden trees on our property and all seem to be dropping a lot of sap, as well as now attracting a lot of wasps. The trees are quite large, 30′ plus in height. Is there a…

Patio hibiscus*

I have a 2 foot tall hibiscus on my balcony and the underside of the leaves and the buds have pale yellow and black spots on them. It doesn’t look like they are bugs or aphids as there is no…