Re: Ferns List is OK--back to fern topics?


I use 1 tsp oil (vegetable or mineral)
       1 tsp vinegar
       1 tsp soap (must be SOAP bar ivory is about the only brand name left 
that is soap and NOT the liquid dish stuff they changed that to detergent. 
       1 qt water 

The vinegar dissolves the cotton from mealy bugs, oil suffocates the buggers, 
and the soap is gentle and breaks the oil down to microbeads to be more 
effectively administered.  This works on ferns with no damage and since I 
have frogs and fish in the conservatory I worry about toxicity of things like 
pyrethrins, they are toxic to critters.  

Steven Royer 
Special Projects Manager 
Fernwood Botanical Garden & Nature Preserve 

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