Return to the Cacti & Succulents Forum | Post a Follow-Up

 o
Red Mites on my cactus! Help!!!

Posted by allycat312 Indiana (My Page) on
Tue, Jun 11, 13 at 20:04

Recently Ive noticed very small, nearly invisible, gray and sometimes red, mites on my cactus that I keep outdoors year-round on my porch. Ive never had any issues with pests prior to this. After doing some research Ive concluded that I have red spider mites.
Some of the issues can be seen in the attached photo: Scarring and cuts, discoloration, wispy webs, and discoloration of new growth on the cactus. (The top left picture is part of the container the cactus is in and the red dot is what i beleive to be a mite.)
I need help very fast. Ive learned that these mites can be detrimental to your plants, especially cacti. I need to know what kind of pesticide or treatment I should give my plant. What kind of treatments work best for my situation and which are too risky or harmful on the plant. Any information you can give be will be beneficial.


Follow-Up Postings:

 o
RE: Red Mites on my cactus! Help!!!

Avid knocks 'em out quickly and efficiently.


 o
RE: Red Mites on my cactus! Help!!!

It won't be too strong will it? Will it damage the plant at all? I've heard several pesticides will be too strong for the cactus's skin.


 o
RE: Red Mites on my cactus! Help!!!

Your photos are not too convincing, in my opinion. These red mites you see...do they move around quickly? Predatory mites, which I have seen on occasion, scamper around readily. They are beneficial. Bad mites barely move, when you blow on them gently they get agitated and start to move some more.

If you think you have bad mites, before you resort to harsh chemicals, make sure your cactus plants are being watered well. Sucking animals prefer dehydrated plants because the juices are more concentrated. Also, frequent spraying of plain water on the skin may be enough. Do this twice daily for a few weeks, it really seems to disrupt them. It's easier with cactus plants, than it is with leafy plants which need spraying under the leaves.

Situate your plant outdoors for as many months as possible if you can. Fresh air and rain cures many ills. Plants kept indoors in stagnant air are not healthy.

x


 o
RE: Red Mites on my cactus! Help!!!

If it isn't mites then what is causing all the scarred up parts on my plant? I water it once or twice a week so I don't think it's dehydrated.


 o
RE: Red Mites on my cactus! Help!!!

You would see fine spider-type webbing, were it red spider mites.


 o
RE: Red Mites on my cactus! Help!!!

There are a few wispy webs around some of the damaged areas


 o
RE: Red Mites on my cactus! Help!!!

Though I have never tried it on cacti, on other plants I have used a dilute solution of dish detergent spray to wipeout mites.

However, as X mentioned, you should make sure that the issue is actually mites and that the mites you are killing off are not the predatory mites. The bright red mite you photographed on the lip of a pot is a predatory mite. Besides being large for a mite and screaming red in color, predatory mites can easily be recognized by their movement. As X mentioned, spidermites and other pest types move around slowly and only if they must. Predatory mites tend to scurry all around -- not unlike someone who is late for work trying to find their missing car keys.


 o
RE: Red Mites on my cactus! Help!!!

I asked my grandpa and he said to spray a half and half mix of original listerine and water onto my cactus and that worked like a charm! I have noticed no further damage from whatever pest was harming my cactus. Thanks for everyone's help and insight. :)


 o
RE: Red Mites on my cactus! Help!!!

I asked my grandpa and he said to spray a half and half mix of original listerine and water onto my cactus and that worked like a charm! I have noticed no further damage from whatever pest was harming my cactus. Thanks for everyone's help and insight. :)


 o
RE: Red Mites on my cactus! Help!!!

Not spider mites. Go out around dark and kill the slugs that are eating the epidermis on your plants. Been there, have the scars.

Slugs really like the skin on Opuntias, Peniocereus and Oreocereus, rarely bother Mammillarias and Ferocactus, eat Rebutias wholesale. You will find the flowers will open damaged on all cactus species. Slugs hide under the pot and come out at dark or before if it is raining.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Cacti & Succulents Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here