wild edgesThe north west of south east WalesPosts: 7,568
Soapy water in a spray bottle works really well for them. The ecover type natural soaps are ideal. The soap blocks their pores and stops them breathing.
A great library has something in it to offend everybody.
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Rub them off.
Thanks
Generally nature provides its own balance, if you can be patient... you can reduce the numbers by squirting them with a hosepipe, in the meantime.