invigerator

been given some invigerator just wondering if its any good and if its harmfull to wildlife.

Do you mean SB plant invigorator, or something else?  The SB stuff is good for fighting spidermite by a kind of barrier action when sprayed on, but doesn't contain any nasty chemicals. 

not sure if it sb ,what was told it does is it controls spider mite and many other things by it smothers them in sticky/soapy solution and suffocates them and at the same time feeds the plant but to be careful as not to spray in hot weather that's it.

That sounds like the stuff.  It doesn't contain insecticides, so no problem with wildlife.  I find it works well to keep spider mite under control, especially on things like cucumbers where I wouldn't want to use any chemicals.  It won't eliminate spider mite though - for that you need predator mites (Phytoseiulus.) 

cheers for the replies  much appreciated thanks.