Strange Spotted Leaves

Jimdamick said:

Damned if I know how I got them. My cat? I don't even let my wife in the rooms in case she'd contaminate it.
No soil except germinating mix, and fresh air from the outside is screened.
So, these pricks can live in pebbles and rock wool and pretty much anywhere they are present, huh? This should be fun getting rid of these little fuckers, as it sounds like they could live on Mars. One last question and I'll leave you alone for now. How long is the life cycle of a thrip? I know it's 30 day's for fungus knats, but these guy's are like what? Years? Anyway, thanks for all the info bro, it is appreciated

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Adults and pupae overwinter in garden soil. In spring, newly emerged females insert eggs into the tissues of flowers, leaves or stems. (They do not need to mate for reproduction.) Each female can produce up to 80 eggs, which hatch within days in warm weather, or weeks to months in colder weather. They become wingless larvae (nymphs), which feed on plant sap. After two or more nymphal stages, many thrips drop to the soil to pupate. Emerging adults fly to the plant and repeat the cycle. There may be 12-15 generations per year with the entire cycle from egg to adult requiring less than 16 days in warm weather.