View Full Version : Lettuce leave tips browning

10-21-2010, 06:40 PM
Some of the older leaves on my red sails lettuce is getting brown. Mostly on the edge, but not always. Is this tip burn? I did change my formula to add more CaSO4
so I do have a little too much Sulfur. Can this cause problems?

Here are a few pics of leaves I removed.

10-22-2010, 07:54 AM
It looks like you are overfeeding.

10-22-2010, 09:11 AM
I will cut down on my nutrient solution by 10% or so and see if that helps.

10-29-2010, 09:13 AM
Cut down to nothing but water for a couple of weeks.