Scale on Red Bud?

[Cameron]

Wasn't sure what I have here but thought it was scale. So before I treat it just wanted to be sure. I noticed them last year and they are back again. They do come off easily with the finger nail. 1% horticurtural oil do the trick? Thanks for the help guys

 

[Cameron]

Another

 

[oldoakman]

Pics aren't that clear, but it looks like licanthium scale to me. Getting late for oil, but 1% may be OK.

 

[Cameron]

Thanks, I was doing some searching around on the internet and thought it was Greedy scale but I could be wrong. I need to do something, I noticed some of the lower limbs did not bud out. Could have been the scale or the lack of light having three of them close together or a combination of both.

P.S I need a better camera, hard to tell if I'm focused in on the target.

 

[Cameron]

1% is supposed to be good for 35-85 degrees F. Supposed to be 80 here tomorrow but that is unseasonable warm here already. I hope 1% is ok too. Would 2% be not as effective?

 

[treegazer]

If the eggs have hatched and the crawlers have made it to the new growth and settled down their shells may have hardened and the oil won't do much to them.
First thing to do is get proper ID and fully understand their life cycle and where they're at. Then you can figure the best way to control them.
I recommend an aggressive multi pronged strategy when trying to get a heavy infestation under control.
I have successfully employed a Safari trunk spray followed by well timed hort oil applications (on smaller trees and shrubs). You can also apply Tanglefoot to the trunks to reduce the ant population which gives the parasitic wasps and other predators a chance to do their job.

Always read and follow label directions

good luck

 

[guymayor]

if there are not a lot just scrub them off with a plastic sponge thingy then blast them with water, after petal drop maybe.

hey i was going to use the air/water knife on gloomy scale; whaddya think?

 

[treegazer]

Definitely worth a try.

You can make the clients happy just by washing off the sooty mold.

 

[Eric_E]

Blast them with a hose. I don't recall but I believe Cercis is sensitive to oils. That one looks like "Forest Pansy" therefore even more sensitive being a pansy.

 

[opposablethumb]

Thanks for posting. I found (what looks like) the exact same thing today on 3 'Forest Pansy' trees that I take care of.

My trees are small - 3" caliper - planted a few years ago, so manual removal is not impractical for me.

If I scrape them off and let them fall to the ground will they die?