Need help finding what are these .

[Carmelo]

I have a friend that has a cutting exhibiting these strange spots . He has treated it with peroxide solution with no improvement. Any ideas of what it could be ?

 

[Figgerlickinggood]

Looks like ambrosia beetles

 

[GoodFriendMike]

Looks like lenticels to me.

 

[FigLab]

Are they spots or the tiny "white sticks" sticking out of the bark—the classic calling card of the Ambrosia Beetle (specifically the Granulate Ambrosia Beetle).

Those "sticks" are actually made of frass (a mixture of treedust and beetle waste) that the beetle pushes out as it bores deep into the wood.

 

[Figgerlickinggood]

Looks like lenticels to me.

I think you’re right Mike. This isn’t the time of year for ambrosia beetles.

 

[FigLab]

Looks like lenticels to me.

Oh, I didn't think of that. I guess it's all in the photo angle and magnification.

Their texture would differentiate them. Lenticels would have a firm texture (don't squeeze too hard) and Ambrosia beatle sticks would turn into dust and fall off very easily.

 

[Carmelo]

Looks like lenticels to me.

Are they beneficial and if not can they kill the cutting ?

 

[GoodFriendMike]

It is a good thing that you see them on cuttings. I don't like using AI but not a bad google AI definition.
Lenticels are small, porous spots on tree bark, roots, and even fruits like apples, acting as "breathing" pores for gas exchange (oxygen in, carbon dioxide out) for living tissues beneath the impermeable outer bark, crucial for respiration, especially in mature wood where stomata are absent.

 

[Carmelo]

After he removed the “popcorn “ there seems to be a small hole.

Next day the popcorn is back over the same hole . He thinks something ( a bug) is the cause of this .

 

[GoodFriendMike]

I still think lenticel. But if your friend thinks it is a bug. Only way to tell is to cut open the cutting and see what is inside.

 

[Carmelo]

Looks like lenticels to me.

I still think lenticel. But if your friend thinks it is a bug. Only way to tell is to cut open the cutting and see what is inside.

Mike I think you are correct. Found a picture on the web and it look fairly similar to what we have here.

 

[snarfing]

definitely roots

 

[ktrain]

I concur....potential root beginnings.