Sick plants

[the dragon killa]

here are three links to picture of plants I am growing that are having serious problems.


http://i76.photobucket.com/albums/j17/todub/DSCN0300.jpg

http://i76.photobucket.com/albums/j17/todub/DSCN0299.jpg

http://i76.photobucket.com/albums/j17/todub/DSCN0298.jpg

they are diesel, 4 weeks into flowering. I have sprayed them with compost tea, organicide and set off a pyrith bomb because i was combating beginning stages of thrips and powder mildew. The plants under a new ballast and bulb are the worst while the others which are under an older bulb and ballast arent as bad but look as though they are going to be in the same shitty state within days.

I am thinking that spraying them with pure properly pH'd water will be the best hing for them. However a more experienced grower I have been listening to seems to believe that I should keep spraying them with compost tea because "they cant OD on tea".

any ideas/suggestions will be much appreciated.

thanks

 

[Trevor]

here are three links to picture of plants I am growing that are having serious problems.


http://i76.photobucket.com/albums/j17/todub/DSCN0300.jpg

http://i76.photobucket.com/albums/j17/todub/DSCN0299.jpg

http://i76.photobucket.com/albums/j17/todub/DSCN0298.jpg

they are diesel, 4 weeks into flowering. I have sprayed them with compost tea, organicide and set off a pyrith bomb because i was combating beginning stages of thrips and powder mildew. The plants under a new ballast and bulb are the worst while the others which are under an older bulb and ballast arent as bad but look as though they are going to be in the same shitty state within days.

I am thinking that spraying them with pure properly pH'd water will be the best hing for them. However a more experienced grower I have been listening to seems to believe that I should keep spraying them with compost tea because "they cant OD on tea".

any ideas/suggestions will be much appreciated.

thanks

Are you spraying and leaving the lights on? Some of the lower leaves look like they are getting burned on the edges which means the spray could be sitting too long. I would advise you stop spraying all together. Keep your humidity in check. I've never sprayed while flowering just out of fear of bud mold.

edit: check https://www.rollitup.org/marijuana-plant-problems/157345-have-plant-problem-check-here.html

To me, it looks like nute burn due to lights or potassium.