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Cacti & Succulents

Spider mites

11 years ago

I recently had to get rid of some jades because of spider mites, i still have the pots with the soil in them, i was wondering if i can reuse the soil. I probably won't just to be safe. I'm just curious to see if i can

Featured Answer

greenclaws UK, Zone 8a

11 years ago

Well I personally wouldn't reuse it, but I suppose you could, however, don't be surprised if they come back to plague you early next season!! In autumn the RSM's are not as active and many seek out hiding places to overwinter in, so this could well include the pot's contents. It's just not worth the risk imho. They are a real pain in the butt to eradicate, so I would just ditch it....why take the risk for the sake of a new mix, it would be best for the plants surely? Good greenhouse hygiene is one of the best defences against any pest including the dreaded RSM as dirty pots, dead leaves, old garden canes and general g/h equipment can all harbour nasties!

Gill UK

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Comments (6)

ewwmayo
11 years ago
Gill - do you believe that microwaving soil kills the pests inside?

I've been a bit skeptical, since so many pathogens are very robust and resilient.

Introducing or re-introducing pests always worries me! Normally I just rise the pots plants are purchased with the hose, but I think bleach soak is a good idea.
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Plantspace (5a)
11 years ago
If your medium is inorganic I think you could sterilize and re-use without much issue.
The thing with using a bleach soak on porous medium, how can you ensure that there is no more bleach within it ? Oven/microwave method would work?
tlbean2004
11 years ago
Cant you just get new soil. I would not take that risk!
greenclaws UK, Zone 8a
11 years ago
last modified: 11 years ago
Eww, yes I have heard that microwaving does sterilise the soil.....but......it stinks to high heaven!

Gill UK
Nil13 usda:10a sunset:21 LA,CA (Mount Wash.)
11 years ago
What sort of medium is it?

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