Are these bugs harmful? Please advise.. Thank you!

Within 3 feet of my greenhouse are the rose bushes, found these bugs on the rose bush after noticing the rose bush not looking so good, will these go for my marijuana plants? Recommended solution? I want to be preventative and handle them now if so! Thank you very much.

You got some spider mites and Powdery Mildew on those leaves. If you are in veg, I'd spray down the plants with some Neem Oil top to bottom *sure to saturate the plants even on the bottom sides of leaves. Leave no leaf or part of the plant unsprayed or unsaturated with the neem oil. This will aid in killing bugs and kill off/put up a defense for the powdery Mildew. A Pyrethrum fogger probably wouldnt hurt in the greenhouse as well.
As for the neem oil, if you dont know a ratio to mix it -I mix 2 oz of concentrated Bayer Brand Neem Oil to 1 gallon of water.
To help keep the oil and water mixed in your jug or sprayer use about 3-4 drops of liquid dish soap and use warm water (not hot) to break down the neem in the water and help it mix. When spraying be sure to shake the bottle every 30 seconds or so to keep the oil/water mixed up good. Good luck with your plants!

The first 4 pictures show a bug which doesn't look like a spider mite to me, one green and one brownish. Which is that? The 5th and 6th picture orange dots look like egg sacks or poop as I don't see them moving like I can spider mites when looking carefully. OK will hit with neem today, I have dyna-gro pure neem and put a bit of dr bronners organic castile soap for the emulsifier.

aphids warm soapy water they hate it, powdery mildew-remove and burn.
toooo sloooow internet

maybe bordeaux mix as well

always keep some Neem Oil in the cupboard, it's brillyant stuff

The webbing on the second to last pic indicates spider mites along with the dots. If you hold the leaf up to the sun, do you see any transparency?

i were thinking leaf curler and a spangle gall for the dot's but i think Hydrored's more likely right.
thats the problem with roses they invite allsorts in, best is to dig 'em up, in my opinion.....i dont like roses

Only 6legs so not spider mites for the pics of the bugs. Probably a type of aphid. They love roses too

Spider mites red tiny 1/2mm - 2mm for a monster and fast run round in circle shapes, these have the "two tail's" look about them, aphid - green fly white fly, black fly etc spider mites don't.
there still not what you want crawling over your Lady's fine figure. they just feed and have babies no need to mate.,then they grow wings as adults but won't fly in wind over 3mph (I have a sad life).
definetly a sap sucker......you probly got a good Ant family as well ,they tend go together like a farmer and cow's.
so Sisco get some Neem Oil and Drown the little buggers before they spread and take the mildew with them !!!.

Just to be clear, I wasn't meaning the bug pictured is a spider mite. Just saying the webbing in the second to last picture resembles that of spider mites which is an indication they are present. The bug pictured looks like an aphid.

Thats a trifecta. Aphids, mold/mildew, and whatever the red things are.

@HydroRed hell of a spider mite if it was haha, not sure about the weby stuff didn't know they did that, i have seen it before but thought leaf curler of some kind,
@KryptoBud what's a trifecta .....i know i should use t'internet to check it out but, mines like a stunned slug with a hangover
anyway, i hope ya get it sorted Sisco.