Asked on Jul 29, 2013

What is wrong with my Wisteria?

Roberto De Uslar AlexanderLinda TCatsrule
+11

Answered

My dad gave me this Bonsai wisteria about a month ago, it just had it´s annual pruning and came with a tiny white fly infestation. I Raid the white fly and fertilised with triple 17. it was doing great, blooming and thriving as you can see in photo 1. Then we had a heat wave and some of the leaves died from it so i moved it to a place in my patio where it has more shade. Now the leaves are dying from top to bottom, and i can´t see any new leave blooms, can you guys help me with some tips? Thank you in advance :)
Photo 1 after one week fertilisation and Raiding the white fly
Photo 1 after one week fertilisation and Raiding the white fly
Today after heat wave
Today after heat wave
dying leaves
dying leaves
q what is wrong with my wisteria, gardening
13 answers
  • 360 Sod (Donna Dixson)
    on Jul 29, 2013

    hmm...are you saying you used RAID bug spray? Did the label say it was ok to use on plants? How long ago did you do that?

  • Roberto De Uslar Alexander
    on Jul 29, 2013

    Yes it´s Home and Garden Raid bug spray, it does say it´s safe for plants, and this was 3 seeks ago when it first came home.

  • 360 Sod (Donna Dixson)
    on Jul 30, 2013

    Can you remember if you water the plant during the heat of the day with a water hose that might have been in the sun heating up at any point? It really looks like a burn of some kind, either chemical or with water that is too hot.

  • Roberto De Uslar Alexander
    on Jul 30, 2013

    I always water them late at night, and the hose is stored in a shaded area, i do agree seems like they are burnt, and the day we had the big heat wave most of the leaves where withered down, i did water it as usual and some died. What is strange for me is that i can´t see any new growth ever since, and has me worried.

  • Douglas Hunt
    on Jul 30, 2013

    I think you're always supposed to use a very diluted form of fertilizer on bonsai.

  • Catherine Smith
    on Jul 30, 2013

    It looks like pesticide burn. The Raid may not have been the best choice, since these type of trees seem to be super sensitive in this form. You may want to take some sample leaves to your local extension agent for help with this. I would keep deep watering this baby to help it recover, and I'm with Douglas. I'd go to a fish emulsion type fertilizer which is easy to dilute and good for many types of plants. Also consider using some more organic methods to deal with insect problems. It is not necessary to "nuke" things like whiteflies. They are annoying but controllable.

  • Roberto De Uslar Alexander
    on Jul 30, 2013

    I´m sure it was not the fertilizer, i´ve been using the same one in the same ammount for years, we´ve kept Bonsai trees for about 30 years now. Usualy we use organic fertilizer on the normal cicle of the trees, but we do the triple 17 after yearly prunning since the trees need the boost. That´s why i´m thrown off by this, i´ve never had a wisteria though, i always wanted one so i´m not familiar with their needs. Here are some photos of the rest of my trees they are all doing fine hence the stupid white fly that the wisteria brought.

    q what is wrong with my wisteria, gardening, The Azalea is just besides the wisteria i read that they have the same sun shadow needs as you can see the Azalea is thriving and getting ready for this year bloomq what is wrong with my wisteria, gardening, Left to right an Acasia guava tree Inoki pine juniper and the little guy is a Mexican specie called Ocoteq what is wrong with my wisteria, gardening, Left to right Pine juniper walnut and an granny smith apple that just lost his apples
    • GardenGypsy
      on Oct 6, 2013

      @ @Roberto De Uslar Alexander -Looks like you are doing a wonderful job with your other Bonsai I am impressed they are something I have always wanted to have a go at . Raid and other chemicals tend to be very harsh I sprayed last week and could barely talk the next day with sore throat , Dawn Liquid soap in water spray bottle seems to help with lots of issues and is less harmful to us and benificials ! Good luck hope you find the solution!

  • 360 Sod (Donna Dixson)
    on Jul 31, 2013

    You have obviously taken wonderful care of your bonsai. I understand your frustration with the wayward Wisteria. I do think it was either heat stress or chemical burn from the raid, maybe in combination. I too am worried that it has not put on new growth. I think at this point all you can do it keep her watered, sheltered and hope for the best. I would not add more fertilizer. She may yet recover, plants have a remarkable will to survive and Wisteria is a tough old gal. Good luck and let us know her health status.

  • Roberto De Uslar Alexander
    on Jul 31, 2013

    Thanks Donna, I´m guessing it was too the bad timing with the Raid and the heat, i cant figure it out otherwise, I´ve been reading a lot about Wisteria in the past days and i think i got all her requirements covered. I´ll change her soil in case it was the fertilizer and keep her extra watered even her leaves and hope to see new growth soon. Thank you all for your input.

  • Catsrule
    on Jul 31, 2013

    A safer idea to help get rid of the bugs is to cover the base of the plant so the dirt doesn't fall out then, turn the plant over and swish the leaves and stems in a mild soap and water solution. Rinse in cool water and let dry before putting it back in the sun. Do this one to two times per week and the bugs will be gone in no time at all.

  • Thanks for the answers, but I'm still hoping for more ideas.

  • Linda T
    on Oct 9, 2013

    You are lucky I saw this. My niece is a professor of botany and agriculture, so I asked her.

  • Thank you @Linda T :D

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