Hello!
I have a "self-diagnosed" case of cyclamen mites (see pic). The infested plants have a stunted, hairy crown, and fail to thrive. The leaves curl downward and have color change - from purple to yellow. I took the pic with a scope at work of a leaf sample. I was wondering about controlling this. I have multiple plants with symptoms and I am assuming that more are infected, but are symptom free (unfortunately I brought these plants in for the winter about 3 weeks ago and mixed the infected group with the uninfected before realizing the problem - thus I expect the infestation to pop up over time in the previously clean group). I have a rare collection of Gesneriads and prefer not to sacrifice them. None of the Petrocosmea or Primulina are showing symptoms and am currently of the opinion that I must do something now to prevent total infestation or risk losing them all.
I read that immersion in water at 43deg C for 15" can kill the mites. I also read on this forum that it resulted in the death of most plants. I tried it on one plant as a preliminary test. It seems to be surviving thusfar though there is a lot of damage(we're 48 hrs post treatment. I image most leaves will be lost and hope the crown survives.
Strategy wise. Does anyone have first hand experience eradicating these pests. From what I can read they are quite the challenge and there are many suggestions to scrap the entire collection, sterilize, wait a few months, and start over. This sounds not so much like an option but admittance of defeat :-)
I have read that Forbid 4F is the best miticide. Though handling and storing the chemicals etc is worrisome to me.
I am thinking about trying to start cutting from leaves that are on the outside of the plant where the mites avoid (supposition here) and perhaps spraying the leaves with Forbid, then placing in bags to quarantine. This may lead to a backup source or plants if I do lose my collection or a reserve for the pest....making it harder to totally eliminate. Not sure how to proceed.
Any suggestions, personal stories, words or encouragement?
many many thanks
jeff
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taxonomist3
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ofrellOriginal Author
irina_co