HELP plz.....rust spots every where, top fan keave upward inward curl

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gooseman420

Member
My plants are 4 weeks into flower the flower development seems to be moving along well but the rust spots are every were and it's more severe towards the top where they are curling like hot dog buns edges and tips are burning feeding at 1600ppm 25 bloom, 5 calmag, 11 liquid karma and 5ml hyrdoplex ph is 6.3 and temps range between 78-82 I also added co2 about a week and a half ago and the flowers are growing crazy fast and big nut the leaves are all starting to be effected even around the flowers, any other info needed just ask and I also added great white shark 2 wks ago should I foliar feed with the calmag and st what strength if I do?2012-04-04_19-01-55_343.jpg2012-04-04_19-02-27_758.jpg2012-04-04_19-45-01_131.jpg2012-04-04_19-02-16_484.jpg
 
Budist

Budist

Well-Known Member
don't foliar feed your plants... def when you have buds. wanna smoke some calmag?
 
KI11TH3W3AK

KI11TH3W3AK

Active Member
I have had it caused by boron and calcium deficiencies and also from ph to high but yours seems acceptable. So probably boron or calcium in your case. I was using MG and had this problem a lot i switched to fox farms Grow big and Big Bloom. Haven't had a problem since
 
KI11TH3W3AK

KI11TH3W3AK

Active Member
BTW tacoing could be from heat or lack of water i have had it commonly from heat check temps by top of plants lights may be to close.
 
KI11TH3W3AK

KI11TH3W3AK

Active Member
miracle grow, never go with that! Botanicare is a good brand to use but i have never had experience with it but like i said i switched to fox farms and after the amazing results i got im staying with. I would try to fix it for sure because they look pretty bad. If they stay like this they can last 6 weeks but any worse and idk. I looked at your pics again and noticed they are showing what looks like some signs of nute burn so they could be locking out some elements(not letting the roots absorb an element causing deficiencies). This could be a combo of things man
 
KI11TH3W3AK

KI11TH3W3AK

Active Member
BTW what type of lighting do you have and how far away is it? also were are those temps taken from? is this happening mainly at the top or on the whole plant?
 
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gooseman420

Member
The temp is taken at the glass in my king cobra head,that is prolly 12" from the bulb to topbe of plant, they over stretched a lil due to just using one 250w fluorescent for veg 1000w super lumens hps, the really bad curling is towards the top more but tiny rust spots all over the lower leaves, the really bad curling is only happening to one plant but they all have tiny rust spots though some worse than others
 
KI11TH3W3AK

KI11TH3W3AK

Active Member
alright so sounds like a heat problem up top get an extra fan to circulate the air better in there(not a big problem) and i believe the brown spots are from nut deficiencies. Good luck keep us posted
 
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gooseman420

Member
One more thing I watered yesterday and boosted the hydroplex and came down on the calmag cause I went up to 10ml/gal the last water but only did 1/2 strength on the hydroplex (0-10-6). Thinking it might be to much calmag not enough (k) I backed off on the calmag and did 5 this time instead of 10
 
KI11TH3W3AK

KI11TH3W3AK

Active Member
did you change anything before this happened like a week before or shorter? if so what? also change back to how you were feeding worst case scenario u dont grow as fast at least ur plants will be healthy and not doing this

EDIT NOTE: this could be from lockout I would really consider backing down your nutes to what they were at before changing calmag and hydroplex in the first place if this problem happened after one of those changes
 
missnu

missnu

Well-Known Member
I had one just get those rust ish spots on the top leaves...she got spots early on in flwoer around 3 or 4 weeks and I just harvested her with an awesome yield and very little leaf yellow, although the top leaves were still spotty..Never figured out what did it, but whatever did it in my case wasn't too serious.
 
90cody

90cody

Active Member
I am currently having this problem. Getting new ph meter in and going to do fox farm sledgehammer flush then add
2 tsp/g grow big
2 tsp/g big bloom
1/4 tsp/g microbrew
1/4 kangaroots

I will keep u posted if rust stops
 
prem511

prem511

Member
i had a similar issue during my veg period. it turned out it was a number of issues.. initially i overfed causing nuteburn i misdiagnosed and ended up with a lcokout in the soil... are you using any perlite in your soil mix? i flushed my plants twice repotted them into bigger pots with lots of perlite and infact changed my soil.. point being; make sure your soil is well airated and is draining well, if not using soil are your roots ok, getting oxygen?. dont nute for 3-5 days... worked well with mine.

looks to me like micronute deficiencies caused by a lockout.

and yeeea you don't wanna be foliar feeding so late into flowering?!
 
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gooseman420

Member
So after a few weeks t,hey stopped spotting and growth really hasnt slowed i think it was a lil too much calmag and not enough bloom fertilizer, since ive been running w/o the cal mag still using the hydroplex and at 1800 ppm they still are showing some red veins and stems towatds the middle/top but they have great bud/trichome production so i dont dare go any higher, have since ceased using calmag other than As neccasary . I figure the problem started shortly after i added the co2 and was being a lil cautious on the nutes
 
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