Well this is a verry small amount of info my friend.Its like 21 questions and we are at the part where i ask if it's a mineral Tell ya what.let us know a few things first and i'm sure we can help ya. What is the age and stage of the plant.veg/flower and week of stage What medium are you growing in.soil/hydro and if hydro what system What type/wattage of light are you using also distance from plant tops. What is the ph of the water you use. How often do you water if in soil. What type and strength of nutrience are you using. And last but not least whats the relative humidity. You answer these questions every time you have a problem that dosen't involve pests.there will be no problem having someone help you. Love to know if this helped even alittle.please keep us posted