Heat Stress/Spider Mites??

Qronyq

Qronyq

Well-Known Member
I'm thinking it's just signs of heat stress. Plants are running a little warm right now (need an AC in my grow tent). Mid 80s is where it sits. It's a 4x4x7 with a 600w. I have exposed them to the back yard a couple times near our garden. 4 mothers, vegged for just about 6 weeks. On day 3 of flower. Here's pictures.. all the same type of leaves on each. Have noticed very small white dots on some leaves as well as some webbing. I pH my water anywhere from 5.5-6.0. Just started to mix a little SuperThrive in my water. Using Advanced Nutrients Sensitive Grow/Bloom Hobbyist line. Any advice appreciated.
 

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bobtokes said:
-what are you growing in, cant see any mite damage, have you looked for them,
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I'm growing in Fox Farm Ocean Forest. I haven't done an extended search for them. I came to a quick conclusion based on the webbing I had seen and the damage of the leaves.

I ordered a bottle of AzaMaz, should be here tomorrow. Any advice on household remedy until then would be great. Read mixed reviews on both Soap/Water solution as well as Alcohol/Water. Not sure what to go with. Do I spray the plant down with pH'd water after applying? Do I do this when the lights go out?
 
for a soil grow your ph is quite low, i would ph around 6.8 or you will lock out nutes
the only home made remedy i would use is neem oil 7ml in 1 ltr of warm water with a tiny bit of dish soap to help it mix ( an emulsifier), becarful of home made remedies i,ve seen people kill their plants with some mixtures
 
i dont see any mite damage, those large brown spots arent mite damage. it looks more like lots of yellow dots on the leaves. find one with that and flip it over and look for a tiny black dot, watch it for awhile, if it moves you have mites. the yellow dots are pretty distinctive once you have seen them
spider-mites-cannabis-yellow-spots-sm.jpg
 
Growdict said:
i dont see any mite damage, those large brown spots arent mite damage. it looks more like lots of yellow dots on the leaves. find one with that and flip it over and look for a tiny black dot, watch it for awhile, if it moves you have mites. the yellow dots are pretty distinctive once you have seen them
spider-mites-cannabis-yellow-spots-sm.jpg
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I have about an hour and a half left of light until they go back under their 12 of darkness. So I could have some type of lockout/deficiency as well as Spider Mites. Here's a few more pictures of just right now.

How should I disinfect my grow tent? I'm going to move the plants into my bedroom closet today for their 12 hours of dark (they will enjoy the indoor AC lol) ... would like to spray down the tent with something along with the hood, fan, ductimg, ect... bought AzaMax on amazon. Considering returning it and buying Mighty Wash right now. I do have those white dots on most leaves of each plant. I've cut a lot of water leaves these past 2-3 days. Have a few leaves that look half eaten as well.

I appreciate your guys' help. First grow with a mite problem. Should have never put them in the backyard for real sun lol.
 

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MA MED Grower said:
Def mites. If you take your plants out and bomb the tent the plants will still have mites.
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Yeah I know that. I'm going to head down to the Hydro store here where I live and see if they have Mighty Wash. Just looking to disinfect the grow tent while the plants are not in there and I can spray the plants down in another area. I'm only 3 days into flower.

Mites can cause the leaves to brown and curl like that?
 
Could I be experiencing a nutrient lockout? I couldn't see it being a nutrient burn since I only feed every other water. And every other feeding is only half dose. Going to flush each 4 gallon pot with 8 gallons of water tonight. pH around 6.5. Will check the pH of the immediate water run off. It's hit each plant for the most part so I thought it was spider mites causing these brown, dead leaves.

Looking for any input on what may be causing these leaves to be like that.
 
Hey can any one shed some light no pun intended .....has any one vegged in mid 90s temp wise ??? My room Runs around that temp till sun goes down then cools back to normal ,but only a few hours in that high temp they seem to be ok with it but what do you guys think
 
Damplamp said:
Hey can any one shed some light no pun intended .....has any one vegged in mid 90s temp wise ??? My room Runs around that temp till sun goes down then cools back to normal ,but only a few hours in that high temp they seem to be ok with it but what do you guys think
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Really depends on the strain. Some can handle those temps, others can't. Best thing to do, if you're not already, is switch the times you're running your lights so they're on at night and sleeping during the hottest part of the day.
 
Damplamp said:
Hey can any one shed some light no pun intended .....has any one vegged in mid 90s temp wise ??? My room Runs around that temp till sun goes down then cools back to normal ,but only a few hours in that high temp they seem to be ok with it but what do you guys think
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You need to get those temps down mate. After 85 degrees your growth starts to slow down dramatically.
 
StoneyMcphatter said:
You need to get those temps down mate. After 85 degrees your growth starts to slow down dramatically.
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I agree with you man but the temps only reach that high for around 3 hours will that still hurt my growth ? But also it seems like they still grow good everyday
 
Woyaboy said:
Really depends on the strain. Some can handle those temps, others can't. Best thing to do, if you're not already, is switch the times you're running your lights so they're on at night and sleeping during the hottest part of the day.
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Well they two stains I'm am doing are sour d and pineapple haze both say medatrainan sunny climates
 
Damplamp said:
I agree with you man but the temps only reach that high for around 3 hours will that still hurt my growth ? But also it seems like they still grow good everyday
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Well going by what you say the genetics of the plant are then yes it should be fine mate. Some Sativa's don't mind a little heat every now and then but its the hybrids that give ya hell.
 
Well I just took a few pics this is my secound grow I have done and the last one I did was around 5 years ago but tell me what you think the two big ones are around 3 weeks from seed those are my sour d that I will use as mothers and all the little fellas are pinnapple haze they are only about 5 days old
 

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Update on my flush. My initial water run off was pH'd at about 5.0 to even lower. Flushed my 3g pots with 6 gallons of pH'd water at about 6.7-7.0.. going to do a 7g each of some hAlf dose feeding. Hoping this will fix what my leaves were going through. Should a second flush happen in a few days?
 
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