nute burn.... Flush or no flush?

Hey ,

So today my roomate watered our plants and used some cheap nute spray stuff (from walmart). The stuff he used is called Terracycle All Purpose Plant Food N .03 P .002 and K .02. I have been using 1/3 strenght Schultz 10-15-10 plant food since the plants were 3 weeks old with no problems. Today after using the cheap walmart spray the bottom leaves on some of the plants are starting to turn yellow. The yellowing seems to start on the outside of the leave and work its way inward. There is also about 5 very tiny little black dots on one of the plants. I also saw a little green bug on one of the plants. I killed that one and looked for his comrades but couldnt find any.

Does this sound like nute burn? Should I flush?

I am pretty sure it isnt overwatering but could this be the case too?

What kind of bug was the one i found? (Very small and light green.)

Sry I cant get any pictures up, I will try tom. Just some more info, CFL grow 8 plants temp 75-82 degress humidity 40-55 thx

please someone with an opinion?

Sounds like you might have aphids!!! no pics? You'll have to buy some predators or at least get some sticky traps (yellow & blue) and get some neem oil. Bugs will never go away so you may want to get into the habit of spraying down your plants 3 times, 6 days apart, late into veg/early flower. You don't want to be spraying shit on your nugs.

the nutes your roommate gave probably washed out some of the stronger stuff you were giving. The nutes in the Terra cycle aren't readily available to the roots until they are broken down by the microherd, and since you've been using chemical Shultz, the beneficial organisms are gone. You need to inoculate with mycorrhizae (after a flush), or go back to the Schultz.

ye i gave my plant nute burn and there were no black dots and the yellowin started at the leaf tips and didnt react that fast id say a bug problem iv heard neem oil is the best and the insects could be anywhere or it could have laid larvae somewhere so u need to get rid quick as