My plants have something wrong with them. I grew 5 plants from seed. They have a combination of foxfarm ocean forest and powerflower dirt. They are in 5 gallon pots. They are about 2 feet tall. I don't know exactly how old they are. Two plants show the damage shown in the 5 pictures below. Another plant shows white lines on leaves as shown in the bottom 2 images. PH for all plants are between 6 and 6.8. I have been watering them every few days when they get dried out a little. I have used 3d organic grow 16-0-0 twice (spaced out about 7 days with two regular wattering between) since some of their lower leaves turned yellow due to nitrogen deficiency. They have two 400 watt output ufo lights about a foot away. I don't think they have light burn because the leaves with damage are not the top leaves, but some from the top, middle, and bottom. Some of the leaf sets are undamaged, or only show a few brown spots while some look really brown, crunchy, and the leaf tips are turned up.
The two images below are from a separate plants. Does anyone know what the white things on the leafs could be? I don't see any bugs on the leaves at all and so far it's only on about 6 leaves on one plants. Some of the new leaves forming have the white stuff on them. I haven't really done much foliar feeding, so I don't think it's related to that...
The two images below are from a separate plants. Does anyone know what the white things on the leafs could be? I don't see any bugs on the leaves at all and so far it's only on about 6 leaves on one plants. Some of the new leaves forming have the white stuff on them. I haven't really done much foliar feeding, so I don't think it's related to that...