i need help bad. bugs then yellow leaves

i notices bugs in the plant last week. flies with clear wings and little white catapilar looking things you can see the leave almost all eaten on the second pic. i decided to get Bug B Gone, i put it on the leaves and underside. now bugs are gone no more chewed up leaves. but im getting yellow leaves and brown spots. they are in 6 gallon buckets its a 200 watt cfl grow and they are about 20 inchs away from plant. and 1 month old tomorrow im wondering from my searches that these are due to Bug B Gone or somthing ales? i havnt added any nutes at all. could this be because the soil has too much nutes in it itself or is this due to Bug B Gone? is it dieing? should i toos it? thanx for any help

This looks very similar to a Ph problem i had awhile back. What is your Ph at. The bug spray shouldn't cause that, you said you haven't given any nutes which would make this a deficiency. It looks like it could use a good round off of nutes. I'm going to need more info to be safe; Ph, weeks growing, water used, Ph of water used and runoff would make it complete.
Also I'd suggest neem, its more of a defense then an offense but it promotes the plants natural defense.

im not sure about the ph level. the plant were placed in to 6 galloon container egsactly 1 month ago so 4 weeks from when the seed germinated an inch. i use regular tap water that has been sitting for a couple of days. what do you mean about run off water? im going to get the neem oil you are rite that sounds much safer. i can get nutes i just dont know about the numbers i got somthing that is 12-4-8 what should i be looking for? when i bout the souil it said there is enough food for 6 months is that corect or that doesnt do shit for cannabis. thanx so much for you help. thanx a million

maybe its because i had to leave town for 3 days strait from work. and the lights stayed on for 3 days. could that have caused it?