my poorly walnut

don · Yellow Belt Joined: 14 Jun 2006 Posts: 166 Location: Devon

Has anyone any idea what may be causing black marks on the leaves of my walnut? Crying or Very sad

http://s302.photobucket.com/albums/nn101/daddypea/?action=view&cur rent=walnut-1.jpg

Crazeegang · Posted: Fri Jul 18, 2008 4:49 pm Post subject: Re: my poorly walnut

I can't be sure but it looks like some sort of damage from insect larvae. I would maybe spray it with insecticide or washing up liquid/water mix.

Toni

corin · Posted: Fri Jul 18, 2008 6:32 pm Post subject: Re: my poorly walnut

walnuts leafs often suffer damage as the year goes on - ive seen much worse than that

itll either be insect - spray with insecticide

or fungus / blackspot - spray with fungicide

or environmental - scorch etc -

I wouldnt worry - its quite superficial

steve · Posted: Fri Jul 18, 2008 6:35 pm Post subject: Re: my poorly walnut

My first thoughts were blackspot but it doesn't look that bad. is there plenty of air circulation around the tree?

don · Yellow Belt Joined: 14 Jun 2006 Posts: 166 Location: Devon

There is plenty of air circulation. I sprayed it tonight and hopefully that will stop it. Scorch? During this summer? Not much chance of that Smile

I'll see what the spray does for it Crying or Very sad

Dick · Posted: Fri Jul 18, 2008 7:25 pm Post subject: Re: my poorly walnut

It's a very common occurance on walnuts and not harmful to the tree, only unsightly. It's not a fungus either and most probably from insect damage of dome sort.

Zemiakova brigada · Posted: Wed Aug 06, 2008 8:28 am Post subject: Re: my poorly walnut

[quote="corin"]walnuts leafs often suffer damage as the year goes on - ive seen much worse than that

.....

I wouldnt worry - its quite superficial[/quote]

Hope you're right. I've got the same problem with mine. :D

Dick · Posted: Wed Aug 06, 2008 3:38 pm Post subject: Re: my poorly walnut

If the problem worsens on the afflicted leaves or if it seems to be spreading, you can always remove the offensive leaves andf destroy them. That usually will keep things in check.