Fusionanswered grow question 4 years ago Those are signs of thrips/pest.. yes it's something to worry about. Good thing is won't die right away and can fix it.
Your going to need a 2-step approach. An organic pesticide (neemseed oil) , and nematodes for the soil.
Spray the leaves with the pesticide and the nematodes are soilders in the soil attacking the larva.