Black willow leaves curling
From February 7, 2007, here’s a close and abstract look at two curling leaves of a black willow, Salix nigra. I don’t know what caused all those the dark spots.
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I’m away from home. You’re welcome to leave comments, but please understand if I’m slow in responding.
© 2015 Steven Schwartzman
This is really nice, Steve.
oneowner
February 16, 2015 at 6:31 AM
I’m pleased that you like it, Ken.
Steve Schwartzman
February 17, 2015 at 12:34 PM
Like elegant calligraphy.
Gallivanta
February 16, 2015 at 6:35 AM
I wish I could write a calligraphic reply on my iPhone.
Steve Schwartzman
February 17, 2015 at 12:28 PM
Considering where you are voyaging, I am simply grateful your iPhone can send a reply.
Gallivanta
February 17, 2015 at 6:01 PM
“A number of diseases plaguing willows are transmitted by insects. Willow blight, Pollaccia saliciperda, is transmitted by borers of which Salix species are the only known hosts (Pitcher and McKnight, 1990). Symptoms are dead leaves and shoots due to fungal infection with striking black spots on the leaves shoot tips blackened and shaped like hooks. The damage can be so extensive that entire tree appears to have been denuded by feeding insects (Stihl, 2010)”
.–source
Elisa
February 16, 2015 at 6:54 AM
Thanks for that information, Elisa. I had no idea what the spots might be. harmful as the spots may be to the willow, I still like the spots visually. The botanical species name saliciperda means ‘causing loss to willows.’
Steve Schwartzman
February 17, 2015 at 12:38 PM
Thank you! I wasn’t sure, I just found it and shared it with you. I could hope that I am wrong!
Elisa
February 17, 2015 at 12:54 PM
Steven—icy cold here in Austin area today—-hope you are enjoying better weather wherever!!
A comment, not on today’s photo, but the series in Spring 2015 issue of WILDFLOWER magazine. They are all stunning images, especially the wasp with what appears to be pollen on it’s back pictured on the butterfly weed.
Just wondering—were you lucky enough to capture all those images on one photo shoot, or were they compiled over time?
Esther Wilson
February 16, 2015 at 10:22 AM
Hi, Esther. I’d be lucky indeed if I could get that many good pictures of insects in a single photo session. The photographs are from various times and places.
Here in New Zealand the temperature is pleasant, quite a contrast from what you say is happening in Austin. I don’t mind missing the cold at all.
Steve Schwartzman
February 17, 2015 at 12:43 PM
Oh—lucky you!!! What a fantastic country!! Visited there 20 years ago exactly this same time of year.—so nice to be enjoying summer while those of us here in the states are shivering.
Don’t miss Milford Sound!
Esther Wilson
February 17, 2015 at 6:12 PM
Unfortunately we don’t have enough time to make it that far south, but we’re seeing plenty of good things.
Steve Schwartzman
February 19, 2015 at 3:17 AM
Splendide !
orepuk
February 16, 2015 at 2:27 PM
Merci.
Steve Schwartzman
February 17, 2015 at 12:44 PM
Maybe the leaves have some compound that forms a crusty deposit as they dry.
Steve Gingold
February 16, 2015 at 7:37 PM
I hope I don’t become crusty as I age.
Steve Schwartzman
February 17, 2015 at 12:58 PM
Great shot!
Nandini
February 17, 2015 at 1:00 AM
Thanks, Nandini.
Steve Schwartzman
February 17, 2015 at 12:58 PM