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Scale Insect...

edited March 2019 in Plants
I have an orchid that (with no new plants having come into the house) has mealybugs. I've owned it for years so no idea where they came from. I've sprayed it once with imidacloprid and they have reappeared a couple of months later.

Do I ditch it? Take it all out of the pot and spray the roots too?

How long would the little swines take to drown if I soaked the root ball for a day..?


  • Hostafan1Hostafan1 Posts: 34,053
    dab them with a cotton bud dipped in meths
  • I corrected it, mealybugs.
  • I wonder if the issue is that it is obviously in bark and not soil so they can track down along the green roots.
  • Hostafan1Hostafan1 Posts: 34,053
    you can tip them out of the bark easily, deal with the bugs and stick them back into the pot/ bark. 
  • That was the option I suspected was best. Problem is that they are stuck deep into the root bases so systemic chemistry seemed best.
  • BorderlineBorderline Posts: 4,699
    edited March 2019
    If you are sure it’s Mealybugs, remove the bark off and replace, and clean up all the stems as others have recommended. If you have had this plant for a while with no issue until recently, it is possible it’s spread from another plant. Even if you have dealt with this plant you may need to keep an eye on that plant and other plants over the next month or so. 
  • I have no idea where it could have spread from though!
  • BorderlineBorderline Posts: 4,699
    Without putting you off anything but fruits and vegetables bought from supermarkets, grown from your garden can infect your plants. Other areas could be fresh cut flowers or simply leaving windows and doors open for air. 

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