Burnt spots on leaves

gunners

Active Member
I have a Red Dragon plant outdoor that is well into flowering. It has just developed some burnt spots on otherwise healthy leaves. I have also noticed that the weed growing beside it also has the same problem. Has anyone had a similar problem? Any help would be appreciated! (see pic)
 

Attachments

banknchips

Well-Known Member
That plant looks wet. It seems to me that the water droplets are acting like a magnifying glass and burning the leaves.
 

d.c. beard

Well-Known Member
Don't water during peak daylight hours. Same reason you don't water your lawn in the middle of the day. You'll just burn it.
 

gunners

Active Member
The leaf is wet from the morning dew and none of the other plants have spots. Any thougts? Thanks for your reply.
 

banknchips

Well-Known Member
pH Fluctuation

Both of these leaves in figure 3 and figure 4 are from the same plant. It could be over fertilization, but more likely it is due to the pH being off. Too high or too low a pH can lock up nutrients in the form of undisolvable salts and compounds, some of which are actually toxic to the plants. What then happens is the grower then tries to supplement the plants diet by adding more fertilizers, throwing off the pH even more and locking up even more nutrients. This type of problem is seen more often in soil mixes, where inconsistent mixing of the medium's components leads to "hot" spots.


Figure
,​

This is the onlty other thing I think it can be (early stages). But I really think the sun is burning your plant do to water droplets being left on it, it looks really healthy other than the burnt spots. No leaf curling?​
 

gunners

Active Member
Thanks for your help:weed:
pH Fluctuation

Both of these leaves in figure 3 and figure 4 are from the same plant. It could be over fertilization, but more likely it is due to the pH being off. Too high or too low a pH can lock up nutrients in the form of undisolvable salts and compounds, some of which are actually toxic to the plants. What then happens is the grower then tries to supplement the plants diet by adding more fertilizers, throwing off the pH even more and locking up even more nutrients. This type of problem is seen more often in soil mixes, where inconsistent mixing of the medium's components leads to "hot" spots.


Figure
,​


This is the onlty other thing I think it can be (early stages). But I really think the sun is burning your plant do to water droplets being left on it, it looks really healthy other than the burnt spots. No leaf curling?​
 
Top