Diseased Camellias not responding to 10% permithrine

I have some varying aged , different varieties of Camellia trees all with some kind of insect / bark boring disease. The bark has ( I think ) a full bark thickness wound pattern like a bee honeycomb . I can see no insects when I check . It is at the same level of each branch ; each pattern of wounds is 1-2" rings or more on one tree. I took Pictures to the local feed and seed and only one person there had an idea : bores ( some of the guesses were wood peckers but there is no way this pattern is too fine and doesnot penetrate into the woody part of the tree) . SO , I bought a systemic treatment for a variety of things okay for ornamental trees... a 10% permithrin to be diluted in line/ waterhose dispenser( calibrated ). I did this twice a week apart....how can I be sure this is helping . The worse case tree seems to be worse and is defoliating about 30 - 40 % now , I haven't sealed the bark yet for fear of protecting the pest ....help ! These beauties survived Katrina ... also some of the leaves on some of the affected trees are this week turning yellow ....WHAT DO YA SUGGEST . ( I have scanned through a search for camellias and am not sure what to do - ) I am not very experienced with trees ...

 

I dont believe permethrin is systemic. It is a synthetic pyrethrin product. The problem on the plant may be borers, is there a chance of some visual evidence?

 

Permethrin is NOT systemic. Those hose end sprayers deliver such varied quantities of product, that one second it comes out at like 7%, then at almost nothing. I would use a pump sprayer and apply it as a pinstream into the wounds. It is applied at a .50 to 1% rate.
Instead, try Orthene, which IS systemic, or Talstar. They are both available in the U.S. and please follow the labels instructions.
Good luck.

 

yes , Pyretrin is the product....sorry for the error ( I was a bit sleep deprived ) and if you reread my 1st post it is a water hose spraying I referred to as in line and calibrator set up ( by ferti-lome ) so, I am not using an undiluted product at 10% ...that is how the product comes by ferti-lome . Ok , I will try to provide the pictures on this web site ,but I m not sure how to do it with this site. THANKYOU . well, I have been trying to attach ...I'll have to get help to do that.

 

How to Attach Images

 

Re: Diseased Camellias not responding to 10% permithrine HERE ARE THE PICTURES

Sprayed wounds directly with pyrathrine. still need ideas, I have noticed about five new spots on tree. Also thank you for the help so far.

 

Sapsucker damage ? Whoops sorry , didn't read full thread, you say it isn't.

 

Find out what this is before applying any additional chemicals.

 

Looks like sapsucker damage. I would rule out bark beetles or wood boring beetles.

 

I am not sure of anything- I just thought that wood pecker wounds would be more random than in such a tight honeycomb -like pattern ....but that was an uneducated guess: you guys know FAR more than me ....so should I go to the local area arboretum for help ? Because I am at a standstill for any further " ruling out " .? Thanks bunches.....by the way this involves 3 of my Camellias : one of which is the oldest in the yard...I have 10 .

 

Sapsucker damage pattern can look like your pics.. Maybe a phone call to an arboretum, retail nursery, posting on the HortBoard this site, or someone on here knows how to discourage sapsuckers. Possibly a google search of "sapsucker damage". Some info on this site we're on, use search box near top of this page.