This is my first grow and I grow outdoors. all my babies are 40 days old and they got leaf burns. I think that the heat causes it and not the PH level. will it hurt the buds too? I also got an insect problem.. should I do Pesticide at this stage?
Any stress early on could potentially negatively affect yield, but at 40 days you still have plenty of time to nurse them into flowering beasts.
pest problems cause cause nute problems and can look like burns. especially spider mites and will reduce yield. ive heard good things about using a product called liquid lady bug or organicide for treating pests.. careful though some pesticides will kill mj plants. also try and get some nutes for them..i used fox farm grow big and it got rid of the burning look and new growth was perfect. heres a pic from when i had the spider mite/deficiency problem DONT be fooled, these were NOT burns from high ph, too many nutes, or too much heat/light. it was a bad npk deficiency