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Red spider all over my greenhouse


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Have you used it ? I don't fancy introducing another mite.

As I said they are on the outside so I have just sprayed the greenhouse

With the garden hose all over all gone now as they say they get drowned

Reading about it perhaps I need to raise the humidity inside what's the best way

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Deltatango, where have you seen the mites? Did you identify them on a sickly looking garden plants or have you seen the mites running over walls, paths etc?

Predatory mites are an excellent way to control RSM. They will not harm your plants at all.

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True red spider mites are barely visible to the eye, and tend to be a yellowish colour with dark spots. You would not notice them unless you where looking closely at the leaves of a sickly plant.

If the mites are around 1mm and a velvety red colour, these are harmless and can often be seen running over walls and pavements, especially on warmer days. You might be in the clear!

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