Sick marigolds

by CindyD

I grow marigolds. This morning the marigolds looked fine, but this afternoon I found quite a few of them covered like in the picture with these tiny bugs. At this point should I snip off the infected flowers or get rid of the whole planter? It is near some other healthy flowers and herbs.

sick marigolds, flowers, gardening, pest control
  12 answers
  • 360 Sod (Donna Dixson) 360 Sod (Donna Dixson) on Aug 20, 2013
    toss all of it...looks like spider mites and they will spread to your healthy plants.

  • CindyD CindyD on Aug 20, 2013
    Thanks...I was afraid of that...are there certain conditions that cause spider mites to attack the plants? The plant had been very healthy prior to this.

  • 360 Sod (Donna Dixson) 360 Sod (Donna Dixson) on Aug 20, 2013
    As I recall I think they like it around 80 degrees, they bred pretty fast and alot. ..

  • Mamateach4 do it sooner than later.

  • CindyD CindyD on Aug 20, 2013

  • Darlene Mapes Darlene Mapes on Aug 22, 2013
    My goodness I have never seen that many!

  • Cathy W Cathy W on Aug 22, 2013
    Great Photo!!! but nasty spider mites...

  • April E April E on Aug 22, 2013
    spider mites the bane of marigolds they love them, they also love dry conditions. they are easy to get rid of if you spray them with soapy water every 3 days for about 2 weeks. it must be done every 3 days to make sure to break their life cycles also spray any surrounding plants as the can move to escape

    • CindyD CindyD on Aug 22, 2013
      @April E I did spray them with soapy water 2 days ago and moved to the edge of the yard(they are in a planter)with no plants around. They look pretty good today. Will spray them again tomorrow. I had no idea spider mites attacked marigolds!

  • Kelp4Less Kelp4Less on Aug 22, 2013
    @Mamateach4, spider mites have an exoskeleton - if the soapy water doesn't get rid of it, you can use our diatomaceous earth - it works great to get rid of insects with an exoskeleton. Here is a link - - it's only $9.95 a pound, so it won't break the bank. It works great. We got rid of about 3 anthills in 2 hours outside my gate last week.

    • See 1 previous
    • Kelp4Less Kelp4Less on Aug 23, 2013
      @Mamateach4 as far as I know, it doesn't work on slugs. BUT, we totally have Sluggo too!!! :) Lol! Here is the link - For the record - the reason it doesn't work on slugs is they don't have an exoskeleton. The reason diatomaceous earth works is that it gets under the bugs exoskeleton, and then cuts them up. It's sharp (microscopically), so it does that. But if the bug doesn't have an exoskeleton, it pretty much has no effect.

  • Kathleen Bell Kathleen Bell on Aug 22, 2013
    @Kelp4Less Love diatomaceous earth. We use it a lot. Never used it for ants though. Will give that a try. We seem to have a rock that they must live under.

  • Kelp4Less Kelp4Less on Aug 22, 2013
    @Kathleen Bell - it's amazing for ants. Really for just about anything with an exoskeleton. It's wonderful, because it doesn't leave a toxic residue or anything like that. Just gets rid of what you want gone. :) Love it!

  • April E April E on Aug 22, 2013
    yes they do that is that unsound reasoning people use for putting them near tomatoes, so the mites will attack the marigolds instead of the tomatoes. the thing with that is after the marigolds die they head right over to the tomatoes. and usually in larger numbers because they built up on the marigolds in the first place. but that is just 1 of the gardening myths that have been passed down for decades that have no horticulturally sound basis lol