What's this?

[myshtern]

Only on bottom level leaves on one plant. I'm just talking about the tips, there was soil in my hand.

[Dr McNasty]

seems just like old plant. some leaves DO die it is normal.

[dimitar13]

More info needed.
Soil, ph, lighting, ect

[bigbuduk]

lol i just posted askin about this problem of the leaves dying i have the same problem withe first 2 set of leaves but if there supposed to die thats cool least the tops goin well lol

[bigbuduk]

bit blurry but u get the idea

[bigbuduk]

had to repost image didnt add

[ganjaganja]

what are your pH levels? how old is the plant? what is your light schedule? what kind of soil are you using and if you are using nute's, which i think you are, what kind, how much are you using?

[rewt]

seeing as how they are on the bottom leaves i would guess it is a nutrient issue rather than a heat issue.

Mobile Nutrients - Nitrogen (N), Phosphorus (P), Potassium (K), Magnesium (MG), and Zine (Zn)- are able to translocate, move from one portion of the plant to another as needed. For example, nitrogen accumulated in older leaves translocates to younger leaves to solve a deficiency. The result, deficiency symptoms appear on the older, lower leaves first

Immobile Nutrients - Calcium (Ca), Boron (B), Chlorine (Cl), Cobalt (Co), Copper (Cu), Iron (Fe), Manganese (Mn), Molybdenum (Mo), Silicon (Si) and Sulfur (S)- do not translocate to new growing areas as needed. They remain deposited in their original place in older leaves. This is the reason deficiency symptoms appear first in the upper, near leaves on top of the plant.

Mobile nutrients translocate within a plant, they move to the specific part of the plant where they are needed; this causes the older leaves to show deficiency first.

If those are spots on the leaf rather than soil, then its a sign of Potassium (K) deficiency

Symptoms lncude the following: older leaves(first tips and margins, followed by whole leaves) develop spots, turn dark yellow, and die. Stems often become weak and sometimes brittle. Potassium is usually present in the soil, but is locked in by high salinity(nutrient lock). If the problem continues, leach the toxic salt out of the soil and then apply a complete N-P-K fertilizer. Potassium deficiency causes the internal temperature of the foliage to climb and the protein cells to burn or degrade. Evaporation is normally highest on leaf edges, and thats where the burning takes place

Branching may increase, but the branches will be weak and scrawny.

credits to jorge cervantes' "marijuana horticulture" book