small rust spots

hey guys i looked all over Google and on here and i think i know what the problem is but i just need some back up to make sure. I believe it is a cal/mag def but my last watering i used tap water. the whole plants life has been tap water. some info on the plant

white widow
150hps
fox farm ocean forest soil
fox farm trio nutes
good air circulation
45% humidity

that's an awful pic. can you take another one?

yeah sorry about that my camera is complete shit

do you filter the water or adj. ph before you water with it? how old is the plant and what stage of growth is it in veg flower?
View attachment 2971824 imo you have too much ca. and salt in the soil because u water with tap water and the ca. and salt has locked out all nute. if so you will need to do a flush on her.

nope i do not filter the water nor do i adjust the ph never had a problem with the plant until now and the stage is week 4 into flowering. maybe i should just water with plain water from now till end of harvest.

Now that you tore it off the plant I can't imagine it will be much of an issue.

ProTip: Plants like their green leaves left on.

well no shit dude these leaves have been falling off

snowolf41 said:

well no shit dude these leaves have been falling off

Click to expand...

OK then. You are right.

I've been growing weed and lots of other plants for over 30 years and have never seen a green leaf with a couple spots just "fall off".

Learned something here today.

Dude... You are in:

• the stage is week 4 into flowering.​
  
  
  
  

Click to expand...

That's an old leaf right?

That leaf has been on your plant for I'd say 8-10 weeks... and now you say:

• these leaves have been falling off​
  
  
  
  

Click to expand...

They're falling off because they are done... used up...
You most likely have been feeding not enough "N" of the N-P-K....
Plants not given proper amounts of "N" will loose their leaves...
You have solved your own issue....
Good Luck...

Sand4x105 said:

Dude... You are in:



That's an old leaf right?

That leaf has been on your plant for I'd say 8-10 weeks... and now you say:



They're falling off because they are done... used up...
You most likely have been feeding not enough "N" of the N-P-K....
Plants not given proper amounts of "N" will loose their leaves...
You have solved your own issue....
Good Luck...

Click to expand...

did you even look at the picture, def not N def, id adjust ph check soil ph then start nuting to fix whatever def that is.

AimAim said:

OK then. You are right.

I've been growing weed and lots of other plants for over 30 years and have never seen a green leaf with a couple spots just "fall off".

Learned something here today.

Click to expand...

all that experience and no answer to the question........lol..........

I don't know the problem, but it is a little strange to see a cal/mag issue the fourth week into flowering. Typically you see that happen at week four from seed. Also the copper color is more blotching that pinpoint dots such as you have.

Not sure if someone mentioned it or not, but check for spider mites, or other bugs. Pot is weird and there are soooo many different imbalances and problems. When I first started growing (not saying that you are a newb) I had PH issues that I kept trying to correct with more nuts, which made things worse. I finally realized to start checking ph after I dosed the water with nuts. My water from the well requires no ph adjustment while in flower.