Leaf wilt on JM's?? Anyone else??

Does anyone else get this?
Every year, my JMs leaf out in may, then many tips wilt. It does not seem to affect the whole tree, only a few new leaves, and then stops. After which the tree is fine.
I have 25 varieties and it can happen to any one of them.
Weather does not matter, it happens in cool or hot springs, wet or dry.....
Any ideas???

Rich

 

Aphid or another insect damage maybe ?

 

This happens from time to time on JMs I grow. It seems like it could be weather related but nearby trees are not affected. It happened much more than usual this year. I don't really have a theory but I don't think insects. It looks like frost related but I'm not sure weather is the culprit either.

 

It's not insects, or frost.
It looks like late frost, but isn't, we virtually never get late frost around here, it goes from winter to summer.

 

Botrytis ?

 

cold winds??

 

Pictures may help since wilted leaves may mean different things to different people; is there a loss of turgidity associated with the wilt or do the leaves turn brown and then fall?, do you also have twig dieback?

You may also find it useful to check out the FAQs where this subject is treated.

Gomero

 

That happens to some of mine, too. My theory is that it has to do with spring conditions, so much water when they are beginning to leaf out and maybe temps a little cooler than they like. I have also had new shoots dry out if we have a lot of water early, then a little dry (like a week) spell with warm temps in spring. They grow so rapidly in early spring, and it seems like they want just the right temps and moisture at that particular time.
Kay

 

Kay that does make sense. You describe the conditions perfectly just weird that it only occurs on some plants sometimes???

 

Poetry,
I notice it more on fast growing palmatums. Some of the branches can grow almost a foot in a couple weeks in spring. I notice it in pots, too. Like I'll be worried they are getting too much water in the spring rains, then I let them dry out maybe a little too much and I will get that. I also notice the insects love those early tips and will eat every bit of the leaf. Seems like one way or another the new growth gets stopped at some point in spring on many.
Kay