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Offlinegoldcaphunter
EMS Medic
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Registered: 07/29/12
Posts: 7,432
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Re: Are my cacti getting spider mites? [Re: Mycelium-yum]
    #18722356 - 08/18/13 10:49 AM (10 years, 6 months ago)

I don't think its that. These off white specs can be picked off with a fingernail and there is nothing in them...they just crumble.

I looked it up earlier and I think it may be early stages of new growth tip pimples. I'm just not sure because those are supposed to be black not off white.


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The picture to the far left is a reminder to our users to stay safe and healthy, that's my third open heart surgery due to over use of amps. Stay safe kiddos :wink:


Edited by goldcaphunter (08/18/13 10:50 AM)


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OfflineHorizon
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Registered: 08/15/13
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Re: Are my cacti getting spider mites? [Re: GoOnThen]
    #18722527 - 08/18/13 11:43 AM (10 years, 6 months ago)

Quote:

GoOnThen said:
Quote:

Horizon said:
People seem to over complicate growing cacti, especially cacti that contain mescaline. Which ironically is an alkaloid that will take care of pests for you. That's why these cacti produce this alkaloid.




There must be something wrong with my cacti as you can see from these pics bugs will destroy your cacti if not treated as soon as a problem is noticed. I could show you some pics of scale on Trich's as well but I think these pics are sad enough for one thread.

                       

Cheers
Got







Interesting, I've never had a problem.


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Stanhope is right :drunk:


Edited by Horizon (08/18/13 11:44 AM)


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Offlineislanduniverse
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Registered: 02/26/10
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Re: Are my cacti getting spider mites? [Re: GoOnThen]
    #18722821 - 08/18/13 01:14 PM (10 years, 6 months ago)

is this sunburn or something else ?


Quote:

GoOnThen said:
Quote:

Horizon said:
People seem to over complicate growing cacti, especially cacti that contain mescaline. Which ironically is an alkaloid that will take care of pests for you. That's why these cacti produce this alkaloid.




There must be something wrong with my cacti as you can see from these pics bugs will destroy your cacti if not treated as soon as a problem is noticed. I could show you some pics of scale on Trich's as well but I think these pics are sad enough for one thread.

                       

Cheers
Got




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OfflineGoOnThen
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Re: Are my cacti getting spider mites? [Re: islanduniverse]
    #18725808 - 08/19/13 02:13 AM (10 years, 6 months ago)

Its mite damage.
Most of my collection that was inside under lights got hit. I had mealies first and was treating them but the damage was still getting worse. I then realised I had mites as well but it was to late and the damage was really bad. Most of my grafts got hammered which is a very diverse assortment of cacti.

One thing of note was they didn't hit the Trich's but I made them look like crap as well by spraying them with Natrasoap. The Natrasoap worked well on the mites and had no bad reactions on most of my cacti but the Trichs got covered in black blisters where they got hit by the spray.
I have also found that any Trichs that lived out side didn't have the bad reaction which I put down to them being healthier and having tougher skin due to being out in the sun.
Trich's don't seem to have as many issues with mites and mealies from what I have seen but they attract scale that can get out of hand very quickly if you don't get on top of it as soon as an infestation is noticed.

Growing in controlled environments is great for growing cacti but it is also the perfect environment for all sorts of bugs and they will rip through a small enclosed area very fast.

Cheers
Got


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Offlineislanduniverse
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Re: Are my cacti getting spider mites? [Re: GoOnThen]
    #18727902 - 08/19/13 02:29 PM (10 years, 6 months ago)

is neem oil appropriate to use?


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Offlineintelligentlife
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Re: Are my cacti getting spider mites? [Re: islanduniverse]
    #18730646 - 08/20/13 01:04 AM (10 years, 6 months ago)

Quote:

islanduniverse said:
is neem oil appropriate to use?




Use neem with caution.

Don't give plants direct sun on strong shade light when neem used on the skin will burn the cactus very bad.

I suggest if you use neem by using it as systemic way and if or when you apply it with spray of water to skin, make sure your plants are at very low light, keep your plants in shady room few days and apply neem when you see it's necessary. And important is to spray pure water directly to cactus skin before you put the plants back in the light so there is no residues of neem on skin.

..you don't want to fuck up like I have done. Picture is result of windowsill light and neem oil sprayed at night time.


Make sure you use it directly on very poor light and don't rush to get them back in to light before you have sprayed pure water to skin. In shady room neem doesn't fuck up your cactus skin. Also different species tolerate neem and light better but lophophora are very sensitive to this, also trichocereus can get sunburns from neem. I fucked up the lophs and few trichos by night time spraying directly but the still got damage at day time cause possible residues of neem on the skin of cactus.

I have succeed to get control of mites when I bottom water plants with neem on the water, it takes few months to see results but it will control mites at longer time period. Also it is possible kill bugs in the soil if there is some like mealybugs.

I have also like there up has said no problem with trichocereus.. Only mealybugs has been on trichos but they are easy to get rid of with chemicals but outdoor plants I don't suggest to use chemicals cause it will kill all natures good bugs too. I have still seen that lophophora and few others will attract mites and mealies easier than trichocereus.. Don't have seen mite damage on trichocereus skin ever but still lophs are getting the rusty look from them. Maybe trichocereus skin are so thick to mites? ...don't know but they are plants easy to grow and mites seems to like only lophophora and few other species of mine.. Ariocarpus doesn't seem to take visible damage even with neem directly on skin. I don't know for sure why mites are not attracted to go into trichocereus plants so easily than lophs.

..soon winter is coming and up there north mites comes always indoors, it's every winter problem and they will get indoors after first good day frosts what lasts about half of the year. Total winter when native outdoor plants is not growing are 7-8months long here and that time mites will get indoors every fking winter.


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Edited by intelligentlife (08/20/13 01:16 AM)


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InvisibleBig L
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Re: Are my cacti getting spider mites? [Re: intelligentlife]
    #18731315 - 08/20/13 08:38 AM (10 years, 6 months ago)

I agree about keeping plants out of direct sun while treating with neem, but if you are using it to treat mites you need to apply several times. The oil doesn't kill the eggs and their cycle is ~3 days. You should keep them out of direct sun for a week or 2, and not wash off between applications. Careful not to over apply or apply too thick. That can be bad.
I am talking about an infestation. I wouldn't bother with neem on my cacti otherwise.
I use a Spinosad based pesticide to keep things in check. Seems to work fine. That reminds me that it's about time to spray again.
Also, Once you have spider mites, you will always have spider mites.


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Edited by Big L (08/20/13 09:25 AM)


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