March 27, 2008

  • Trees and Diseases

    Tude asked for a post on trees and their diseases! But one post could not possibly cover all the trees and their diseases - so this should be the beginning of a whole series!

    There are all sorts of tree diseases like:

    Powdery Mildew

    Sooty Mold

    Verticillium Wilt


    These diseases are not specific to one type of tree.  There are other diseases like Oak Wilt and Dutch Elm Disease that are specific to particular varieties of trees. Oh! I am NOT a tree expert! So you will just get what I can cobble together off the web! Many of the tree diseases are not fatal to the tree - but some often are.

    So - lets start off with Dutch Elm Disease.

    Dutch elm disease is a fungal disease of elm trees which is spread by the elm bark beetle. Although believed to be originally native to Asia, it has been accidentally introduced into America and Europe, where it has devastated native populations of elms which had not had the opportunity to evolve resistance to the disease. The name Dutch elm disease refers to the identification of the disease in the 1920s in the Netherlands; the disease is not specific to the Dutch Elm hybrid.

    The causative agents of Dutch Elm Disease are ascomycete microfungi. Three species are now recognized, Ophiostoma ulmi, which afflicted Europe in 1910, reaching North America on imported timber in 1928, Ophiostoma himal-ulmi, a species endemic to the western Himalaya. A third, extremely virulent species, Ophiostoma novo-ulmi, was first described in Europe and North America in the 1940s and has devastated elms in both areas since the late 1960s (Spooner & Roberts, 2005). The origin of O. novo-ulmi remains unknown (Spooner & Roberts, 2005), but may have arisen as a hybrid between O. ulmi and O. himal-ulmi [1] The new species was widely believed to have originated in China, but a comprehensive survey there in 1986 found no trace of it, although elm bark beetles were very common. - wikipedia

    In the late 1960's and early 1970's Dutch Elm Disease killed off many trees in my grandfather's home town - including a very large one in his back yard! It was a beautiful old tree - that was probably there long before the house was built near the turn of the last century (around 1900).

    But there was another much more famous tree that survived the initial onslaught of Dutch Elm Disease in its area, only to be stricken by the disease many years later. Some thought it was imuune.

    The Buckley Elm - September, 2000

    The national champion American elm known as "the Buckley Elm," used to reside on a farm near Buckley, Michigan. It was estimated to be about 300 years old and was approximately 23 feet in circumference. In September, 2000, it was diagnosed with Dutch Elm Disease. It was dead by September of the next year. Go here for more details and pictures on the Buckley Elm.

    There is not a whole good to say about about tree diseases. There is one fun thing though. When you go to your doctor with an ailment, tell him or her that you think you have a tree disease. For example, Dutch Elm Disease is caused by Ophiostoma novo-ulmi. When you go to the doctor, tell him you think you are infected with Ophiostoma novo-ulmi! It should give him something to do while he is waiting for your lab results to come back. Yup, doc! I think I have Dutch Elm Disease! Its also fun to claim to have grass diseases - like St. Augustine Decline.

    Dead Turkey Joke of the Day

    A traveling salesman is driving down a country road when he comes across a farmer who is standing in his orchard, hoisting pigs into the apple trees with ropes. He stops. "What are you doing?" the salesman asks. "I'm feeding the pigs," answers the farmer, incredulous that someone could ask a question with such an obvious answer. "Well," says the salesman, "why don't you let the apples fall to the ground, gather them up in baskets, and feed the pigs that way?" The farmer ponders, then says, "Hmmmm. Yes, I guess I could do it that way. But what would be the point?" The salesman is a bit exasperated: "Well, it would save time, wouldn't it?" The farmer ponders again. "Yes," he says after a pause, "I guess it would save time. But what's time to a pig?"

    YouTube Today's YouTube Tune

    Leaf and Stream - Wishbone Ash

    Have you ever had an exotic sounding ailment?

Comments (43)

  • Great and educational post on tree disease!  I wasn't aware of the magnitude of tree disease.  Perhaps we can start some sort of "Save the Trees" organization to get the trees vaccinated against these nasty diseases!  Afterall, a tree is a terrible thing to waste!

    Eat my dust, peas guy!! 

  • Dang it alicia beat me!

  • And can I add, eeeewwwww, nasty!!!

  • You can also put up a picture of the "Treaty Oak" if it's still alive....

  • And last but not least, Good Morning Donk!!!

  • Pea Hater had a late meeting, so he didn't even have a chance this morning! LOL! A street near our home in America used to be lined with stately Elm trees, but they all had to be cut down because of that nasty disease. Such a shame. Stupid elm bark beetle! Have a good Thursday, Donk!

  • My hair hurts. What do you call that?

    @DaBombMom2 - 

    You da man! You da man!

  • All of the old elm trees around my childhood home were lost to dutch elm disease. 

    I am suffering from MAD cow disease this morning.  It is mostly aimed at my boss. 

  • Verticillium Wilt!

    you cant say that in xanga!!!!!! wait till i tell mom....

    OHHHHH MOM!!!!!!!!!

  • dutch elm disease.... i wonder if that is what makes peahater so.... well... CRAZY!

  • @EyeHatePeas - I'm a man?  Ouch that hurts!  The last time I checked I was a female!

  • @DaBombMom2 - 

    NO! You misunderstand. You da man! Any one can see from your handwriting that your a women.

  • @EyeHatePeas - phew!  thanks!!  You had me worried for a minute!!  I do have girly handwriting!

  • @EyeHatePeas - 

    slick save ace.... but you better run before she shaves your head!

  • @EyeHatePeas - 

    oh... never mind... she seems to have bought that crock of... dutch elm disease!

  • RYC:  You must be dyslexic .. perhaps you can join a Dyslexics Annonymous group.  Do you know who started that group?  Yeah, that's right, ME.  I did under my old site, so that's why my name isn't listed as leader, but who else would come up with something like that.  Although I do like your idea better.   *hhmmm ... thinking of starting another one!*

  • Exotic-sounding diseases? I guess that depends on what you think sounds exotic. Do chicken pox and mumps count? How about the measles? My sister had mononucleosis when we were in high school... That sounds exotic!

  • ohhh BUMMER! i gotta get going!!!!! i wanna stay and play!!!!!

    ohhhh well... i will have to play later!

    phew! its getting HOT in here! someone musta cranked up the heat!

  • Hallo Donkey~
    how ya doing ? today's topic is quite different from your other posts. tree disease, uhmmm, i hope there'll be less diseases in the world. i feel sorry for the cats who suffer from feline disease in thailand.

    gods bless all!

    have a wonderful day~

    ona cat~.~

  • Good Morning Donkey great post

  • LMAO!!  Maybe I should try that tomorrow at my physical therapy appointment... LOL! 

  • Hey why use a hoist when the farmer could put on wings?...they are so much I see's misitole I cut the outta the oak trees every spring, and fall...don't have elm so I don't worry about them...I's has too many oaks...and I have fruit trees and 2 fruitless mulberry trees...between the oak silk worms and the seeding out of the mulberry trees I have fun with the blower every I thinks I lost the blower someplace on the to get me corner roped off today as his old boss will be here tomorrow for the pre sale of sheet rock equipment...will he ever be surprised at all me a good day...I know's that I

  • When I was a kid, we had a lovely pine tree. I used to love to climb it to the top, and 'get away from it all'. In the distance, I could even see the Waffle House sign on Florida Blvd, which was a whole mile away from my house!!!

    About a year before I got married, the tree got sick and had to be chopped down. I was rather upset about it.

    The Waffle House sign isn't there anymore either. It's probably a used car lot now...

    Baton Rouge sucks now.   I get depressed everytime I go thru it, and think of how bad it is now versus when I was a kid.

    But have a great day, Donkey! (Really, I truly do mean that! Even if my post was depressing!)

  • My mind is a little wooly this morning. A good snooze will take care of that. Guess that isn't too serious.

  • Good Afternoon Donkey...

    Nope, haven't had any exotic ailments...

    but I did have a full body rash once... no more "sulfa" for me!

  • I wouldn't recommend telling the doctors around here that you have one of those diseases.  They'll have you in the hospital and quaruntined in nothing

  • things are majorly foolish over here today! 

  • We have elm trees at camp... they live until they get to be 12" or so in diameter and then..... Phblt... They die. (from DED)

    Dad grew up on Elm Tree Rd.


  • @Aloysius_son - That must have been a Nightmare!

  • RYC....glad you like the pictures...I have more to post...

  • Awww, that is sad about the Buckley Elm. 

  • I posted your Grad pic Donk!!!
    We lost beautiful elms in a blight in 76 or there about.

  • @ddp040 - 

    the treaty oak did not suffer from any disease, though--just some crazy idiot who decided to nuke it with massive quantities of herbicide for some silly satanic ritual...

  • nite
    and yes my wings do

  • Hello......anybody home?   I wanted to be first but alas....but all I hear is snoring....

  • Ironically, New Haven is known as the Elm city... nary an elm to be found these days!

  • I'm allergic to molds!!!!  You gave me the worst asthma attack....but then you cured me with laughter, which IS the best medicine.  I was just thinking, what better way for the farmer to get some exercise?  Maybe I should hoist pigs.

  • Believe it or not pigs can be useful in slowing fruit infestation. The Pigs eat all the fallen fruit before the insects finish reproducing in the fallen fruit.

    Plant disease in humans? I think they inject botox a poison from a bacteria into humans...of course the results are often gratifying...

  • Believe it or not pigs can be useful in slowing fruit infestation. The Pigs eat all the fallen fruit before the insects finish reproducing in the fallen fruit.

    Plant disease in humans? I think they inject botox a poison from a bacteria into humans...of course the results are often gratifying...

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