Critical Purple Auto: First Grow

Don't think that's a true "worm" more of a larva / grub / maggot. Remove it and treat soil with BTi, should help kill any others hidden in it. Good Luck

Hey, BTi is a bacteria that kills a lot of insects in the larva stage of life. its a great pesticide that's not going to cause of a lot of negative effects and I believe it is also approved for organic growing. This is a small bit of info on what it is. https://en.wikipedia.org/wiki/Bacillus_thuringiensis_israelensis I just happened to see my name when I was looking at the questions page and decided I should reply :D PS. when you use mention tags [@m0use] in the questions part of this webpage, it will not notify us of it. Best to use your DM Inbox. its the little green arrow on the bottom right of this screen. This is only in the questions part of the webpage everything else the tagging using @ should work just fine. Best Of Luck!

Soil will buffer its own PH quite well. your mix is 25% soil The kitty litter and DE will help keep that PH up vs lower it down. Next run I would try it without the kitty litter and see how that works out for you. Keep watering in at aorund 6.5-6.8 and let the soil manage the rest. I don't know much about broccoli lowing soil PH but if you find a horticultural sulphur at a store it can help just might be a bit late into this grow but can always try. Best Of Luck!