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I have Red spider mites on my front wall of my house , i have been told that i could use Derris an organic pesticide but, i can't seem to find it on sale in west yorkshire ,so if anyone could suggest a website where i might be able to get it from ?

By harley on 09 July 09 in Pests and diseases

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3 Responses

  • Leave them be these are NOT the kind of red spider that attacks crops! These kind are in fact greenish in colour. The red ones you get on walls are minding their own business.

    By ladybirdathome on 26 July 09 | Report misuse

  • Hi. Derris has been removed from sale and use, even though it was deemed organic. The best thing to get rid of them is to hose them down-if you continue that for several days in a row they will get the message!

    By sara venn on 19 July 09 | Report misuse

  • Hi,

    Unless it's a complete infestation (on your food plants) I really wouldn't worry about them. They're not doing any harm on the wall. My daughter loves watching them speed around in a miniture frenzy, go and get a magnifying glass...you know you want to :-)

    Hope that helps

    By carboniferousdave on 10 July 09 | Report misuse

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