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Bayberry (and Boxwood) Dying question(s)

Posted on 6/28/24 at 12:09 pm
Posted by captainahab
Highway Trio8
Member since Dec 2014
1636 posts
Posted on 6/28/24 at 12:09 pm
SORRY ABOUT THAT - WAS ON THE WRONG BOARD. PLEASE MOVE TO HOME AND GARDEN

South LA....

Last year, I had two boxwoods that appeared to get some disease where the leaves all started to brown and fall off. I noticed several boxwoods on our street do the same thing. I pulled them out and they were clearly dying.

This year, I have something similar starting to happen with what I think are Bayberry's (have several of them along the front of my house. The house is 5 years old, all the planting/landscaping was done by professionals before we moved in. These plants have never had any problems.

After doing some google image searching, these plants possibly have Twig Blight.

Nursery #1 sells me Liquid Copper Sulfate so I spray and a few weeks later, no change and getting worse.

Nursery #2 claims web worms but I don't see any webs. They sell me something and spray it on two weeks ago. No change.

Now Nursery #3 says it may be my sprinkler system. All the other plants in the same beds look perfectly fine. I only run the sprinklers when it hasn't rained in a while and no rains is forecast. They are on a schedule - 3 days a week, 15 minutes per zone, starts at 6am (again, only when we have not had rain).

Any clues what else it could be? Should I be more patient and see if the chemicals work? Should I be prepared to rip them out?

Thanks in advance for the input!
This post was edited on 6/28/24 at 12:44 pm
Posted by Boudreaux35
BR
Member since Sep 2007
22281 posts
Posted on 6/28/24 at 12:27 pm to
I had similar issues about 5 years ago. A friend of mine has a relative who woks at a pretty well known nursery in the BR area. He came out and looked at it and I told me I should just dig them up. You can fight the disease and spend time and money and maybe never get decent shrubs out of them. Dig them up and start over.
Posted by ItzMe1972
Member since Dec 2013
11497 posts
Posted on 6/28/24 at 1:20 pm to
They don't make boxwoods like they used to.
Posted by Dallaswho
Texas
Member since Dec 2023
2674 posts
Posted on 6/28/24 at 1:33 pm to
quote:

3 days a week, 15 minutes per zone

That seems like a crazy amount of water. Still, this doesn’t sound like root rot so the soil is probably ok to plant again.
LSU recommends pulling dying boxwoods so you did good there.
Wax Myrtle’s can handle really damp soil but it is still best to let them dry a little between watering a like everything else. They also take a beating and come back healthy. I have some that look like Charlie Brown’s Xmas tree by the end of the Texas summer but they’re perfect every spring.

I would contact LSU AgCenter Plant Diagnostic Center. It’s a native so they’ll probably be interested.
Posted by LegendInMyMind
Member since Apr 2019
66719 posts
Posted on 6/28/24 at 9:05 pm to
I'd definitely try to figure out exactly what it is before I replanted anything. Maybe soil samples, or get the extension service to look at them. I'd want to know if it is something I need to get under control before planting something new back in the same spot, especially if you go with something similar to what you had.
Posted by captainahab
Highway Trio8
Member since Dec 2014
1636 posts
Posted on 6/30/24 at 9:15 am to
Thanks for all the replies.

Looks like my Google image search was wrong. I have now been told the name of the plant is Distylium.

I put in a call to the LSU AgCenter so will see what they have to say. It's a strange deal for sure. We have lost 4 of 12 plants so far and some of the healthy ones are right next to the ones that died so the are in the same soil and get the same amount of water.
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