pink bugs on tomatoes

I have noticed that the flowers on a few of my Mortgage Lifter tomatoes are blooming, dying, and then falling off. Today, I also noticed that a few plants (one or two of that type and a nearby roma or two) have small pink bugs hatching on them - maybe 1/8" long mauve colored things that don't move or anything, but just have a potentially evil look about them. We have about 40 tomato plants that all have bunches of tomatoes on them and want to prevent tomato distaster in any way possible. Any ideas on what might be lurking on the plants or making the spent flowers drop off? (These tomatoes mean alot to us...)
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