Preventive Insecticide & Pesticide in Canada

[Wild Orchid]

Hello Everyone,
Recently there were a few helpful discussions about the preventive measures for the winter time that is just around the corner. Some recommended spraying orchids every 3 months or so to prevent mites, scale infestations, etc. There were mentionings of Systematic (is this a brand name?), 3-in-one for roses, etc.

What product do you use in Canada and where do you buy it?

I find having to constantly "translate" American brandnames to the Canadian local equivalents somewhat frustrating. Please help!!