Answer: I can't tell by your description what the pests might be. Aphids are commonly found on rose buds and come in a whole range of colors so perhaps that's what you have on your hybrid tea. If so, spraying with insecticidal soap will kill them off. You can also simply hose the pests off. If they come back, spray them off again. Eventually they'll give up and go elsewhere.
Bet wishes withh your roses!
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