identification help needed, this white fluffy substance showed up on my full size hemlock and now appears to be affecting my Yew bushes (which are dangerously close to my bonsai collection) I thought it was a mold, but then I wasn't sure if I was looking at woolley agelids. which is it and what can I treat the yard with?
Fungus or pests
- Thread starter Mikea454
- Start date
NeedlesAndLeaves
Shohin
Woolly adelgids. Take one with your fingers and then you can see the little guy when you take the woolly stuff away
NeedlesAndLeaves
Shohin
You can use insectiside.
You can use either contact or systemic treatment.
I am not familiair with US product but there should be several.
You can use either contact or systemic treatment.
I am not familiair with US product but there should be several.
stubmle
Mame
Agreed, sure looks like the woolly adelgid. Kill those ASAP.
If you're leery of insecticides, horticultural soaps or oils are reported to be effective as well, though they need to be applied more often than systemics.
If you're leery of insecticides, horticultural soaps or oils are reported to be effective as well, though they need to be applied more often than systemics.
@KateM @NeedlesAndLeaves @stubmle
If it was only the hemlock that would have been my assumption but can they really affect the yew bushes as well?
I did. Pull a couple off and I don't see anything inside, maybe just too early in the year to make them obvious?
I would just do a drench in imidacloprid, but no longer allowed to be sold i. MA
If it was only the hemlock that would have been my assumption but can they really affect the yew bushes as well?
I did. Pull a couple off and I don't see anything inside, maybe just too early in the year to make them obvious?
I would just do a drench in imidacloprid, but no longer allowed to be sold i. MA
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NeedlesAndLeaves
Shohin
Yes they can certainly effect a Yew.
They will suck the sap and energy from branches.
The result you will see in the leaves.
Remove them or treat them. It is a common thing but best to act soon.
They will suck the sap and energy from branches.
The result you will see in the leaves.
Remove them or treat them. It is a common thing but best to act soon.
NeedlesAndLeaves
Shohin
No creature inside of the white stuff?
Attmos
Shohin
I had something at least similar on my Fukien Tea Tree. It may not apply but I was told to spray with isopropyl alcohol, which I did. My tree is doing well and seems to be free of infestation.. so far... and recovering pretty well.
stubmle
Mame
Soft scale / mealybugs, I would guess.
stubmle
Mame
You can get it in NH, just find a Tractor Supply or ag & turf store. I have some I got that way.
Paradox
Marine Bonsologist
Yes can be on yew. I've seen them on pines too
penumbra
Imperial Masterpiece
I keep a spray bottle of Isopropyl around for spot treatment. It is deadly on all insects and works immediately. I have had no adverse effect on any plants even with repeated use. Yes, I have used it on adelgid, mealy bug, caterpillar, scale, aphid and spider mite. It has helped me to cut way back on systemics.
that's my plan if any appear on my bonsai trees, at the moments it's a 45 ft hemlock behind the deck.
