I've got 4 GDP clones almost 4wks in veg... about 2-3wks ago I had a few bugs so I sprayed em down with safer organic bug spray... and they were gone and now a few r back... it says to use in early morn or late evening... since im growin in my closet... is it okay to spray the plants at any time of day with the lights goin?? or should I do it when they r bout to turn off or when they r turned off??? jus need to kno the best time to spray??? thanx...