cryptomeria browning

ocohen59 · 9th February 2009, 01:55 AM

we have 3 large 20 ft cryptos planted about 6 years ago. while we used to get some browning, it got progressively worse 2 years ago. our plant doctor told us it was mites and began spraying regularly. this year, the trees look about 35% brown and i'm afraid we may be losing them. the tree doctor blames it on the early cold weather and rain here in Westechester, NY this winter. they said they should recover in the spring. after 2 years of treatment and getting worse, i don't trust my guy anymore. Help please.

newguy18 · 9th February 2009, 02:27 AM

Are they close to a road or driveway?If so then road salt may be causing the problem,getting the soil test will confirm this.

Eric Frei · 9th February 2009, 07:15 AM

Some pictures would be good, distance and close up.

If it is mites you should be able to tell, try a magnifying glass.

Most of the time these things are fungal.

Dry foliage is important, does the tree get sun in the morning etc? Check to see the corelation between the brown areas and sunlight etc.

Also agree with the soil thing, a start would be a pH test and perhaps a salinity/sodicity test.

rbtree · 10th February 2009, 04:39 AM

Is this browning just in winter? If so, and if you have c. japonicum "elegans", it is normal.

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9th February 2009, 01:55 AM	#1
ocohen59 I'm new here so be nice Join Date: Feb 2009 Location: new york Posts: 1	cryptomeria browning we have 3 large 20 ft cryptos planted about 6 years ago. while we used to get some browning, it got progressively worse 2 years ago. our plant doctor told us it was mites and began spraying regularly. this year, the trees look about 35% brown and i'm afraid we may be losing them. the tree doctor blames it on the early cold weather and rain here in Westechester, NY this winter. they said they should recover in the spring. after 2 years of treatment and getting worse, i don't trust my guy anymore. Help please.

9th February 2009, 02:27 AM	#2
newguy18 Part of the Furniture Join Date: Jun 2007 Location: orlando,fl Posts: 4,948	Re: cryptomeria browning Are they close to a road or driveway?If so then road salt may be causing the problem,getting the soil test will confirm this. __________________ Have your say join us today. old schooler

9th February 2009, 07:15 AM	#3
Eric Frei Admin - Owner Palm & Tree Services in Brisbane Join Date: Jan 2007 Location: Brisbane Posts: 12,990	Re: cryptomeria browning Some pictures would be good, distance and close up. If it is mites you should be able to tell, try a magnifying glass. Most of the time these things are fungal. Dry foliage is important, does the tree get sun in the morning etc? Check to see the corelation between the brown areas and sunlight etc. Also agree with the soil thing, a start would be a pH test and perhaps a salinity/sodicity test. __________________ Protect your rights to work - Join Australian Tree Association My businesses:- Qualified Brisbane Palm and Tree Lopping \| Stump Grinding Brisbane \| Brisbane - Gold Coast Consulting Arborist

10th February 2009, 04:39 AM	#4
rbtree Mature tree Join Date: Nov 2007 Location: Seattle, Wa. US of Eh Posts: 403	Re: cryptomeria browning Is this browning just in winter? If so, and if you have c. japonicum "elegans", it is normal. Great Plant Picks

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