Talstar P cannot be used directly on vegetables or fruits that are going to be consumed. We do carry several products that can be used on cucumbers and other edible vegetation such as Sevin and Hi-Yield Indoor/Outdoor 10%. Always read the product label of the product you select to make sure it is labeled for the plant you want to spray and for the pest you are trying to eliminate. The product labels are available for each product on our site and you can see the links for them on each individual product page.
No, Talstar will not harm your impatiens. It is safe to apply to any plants that are not edible.
Yes, Talstar P is labeled for only spider mites and clover mites. While it might kill broad mites as well it is not labeled for them so we cannot recommend it for this use.