Black spots on leaves

Hello, I purchased this plant (unknown name) at a nursery in the eastern Ontario. Although there were already black spot on some leaves, I was expecting that new leaves would be growing fine. But every new leaf comes out with…

Dawyck golden beech leaf rim margin turning yellow

Hello. I just spoke.with one of your master gardeners(ellen/very pleasant) and she suggested i post some pics. I have 9 golden beech in the back yard close.to the fence. They are 4 years old and have been growing well. I…

Tiny bug problem

We are having a backyard wedding this summer in August and this bug is back. It makes a nasty red smear when crushed. Last summer it dominated all the chairs and deck as we couldn’t sit or hang laundry. We…

Leaf mold on phlox divaricata

Hi! I’ve so appreciated your expertise on the challenges of trying to attract pollinators to my container garden. Every year (because of budget restraints) I try a few recommended native plants, hoping they can survive the winds and light challenges…

What is this on the underside of my collard leaves

Not all leaves are affected. I don’t know if this is normal or abnormal. I juice my greens so I need to find out what this is and whether I should just be ripping off these leaves and not composting…

Willow blight

Zone 6. Mostly full sun but some shade from oaks and maple trees. Soil is dense. I put in a row of dappled willows last spring and they quickly developed what I think is a blight. Last season I did…

Unidentified insects – Aphids

Hello: Can you please identify the attached insects that are feeding on several of my plants? Thank you. How do I get rid of them?…

Spittle bug? Purple leaf sand cherry, mahonia, peonies

My 3 10+ year old prunus cistena shrubs are being attacked by something (photo attached). I think it’s spittle bug. Also, my peony leaves are being eaten by something (photo attached). My mahonia has brown leaves. Photo of spittle bug…

Something eating my peony

  One of my 8 peonies has been eaten, almost down to the ground. The picture is hard to see, but it looks to me as if both an insect and a small animal have been chowing down. In full…

Peony problems

I have had 8 peonies for many years. This year I’m noticing on a couple of them fewer buds, some circular holes in the buds, and quite a few that are small, brown and dried up looking. Most are in…