"Marley1372" wrote in message
...
I
forget what the Home Depot type stores "home name" for their product
that contains Imidacloprid are, but you may look at the true nurseries
for products of Merit II or Merit Wp or Marathon WP

Merit is a restricted use formulation of imidacloprid, it is not available
to
homeowners. I still say hort oil would be a better choice for scale.

Merit has been released in a formulation suitable for use by homeowners and
is now a GUP. Horticultural oil is only effective against scale if one is
able to time the life cycle correctly and the scale is not hard shelled. As
a systemic, Merit (or the Bayer Advanced Lawn and Garden, Marathon, etc.) is
likely to be much more effective. As with all pesticides, read the label
carefully and follow the directions explicitly.

pam - gardengal