Hi i need help with my plants

[Marko]

My red/purps is in its second week of flower,And I noticed it started to change color on top growth . I Am using promix hp And been feeding 1tsp foxfarm grow big in veg and now feeding 1 1/8 tsp foxfarm tigerbloom every 3rd water . Does anyone have any insight into what is wrong .Not sure if this helps but it has been really hot the past week in high 30's with high humidity. Thanks Mark.

 

[chefdave]

My red/purps is in its second week of flower,And I noticed it started to change color on top growth . I Am using promix hp And been feeding 1tsp foxfarm grow big in veg and now feeding 1 1/8 tsp foxfarm tigerbloom every 3rd water . Does anyone have any insight into what is wrong .Not sure if this helps but it has been really hot the past week in high 30's with high humidity. Thanks Mark.

Hey Marko IMO that is a magnesium def. Add cal mag at 3ml per gallon( 4ltrs) or Epsom salt at 1/4 cup per gallon

 

[Marko]

Thanks really Appreciate it.Ddidx you want me to water with the calmag or use it as A foliage spray?

 

[MickJ]

Epsom salt you could foliar at night. Or just add to your watering.

Thanks really Appreciate it.Ddidx you want me to water with the calmag or use it as A foliage spray?

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[MArk123]

Do you mind helping me with A few more?this is another one same medium and food it isis light green At the bottom fan leaves do you think it needs more food or is it also magnesium deficiency?

 

[Waira]

Hey Marko-- high T and RH% make for shitty transpiration rates; this slows the flow of water and nutes from the roots up, and so can trigger deficiencies.... this is hitting the tops first and worst, so that's a big hint that it's very likely a micronutrient defc., I'd say Zn and/or Fe,... it's not Mg, as that's a mobile nutrient and will be tapped from lower leaves to support new growth; most of the micronute's are immobile within the plant meaning they can't be translocated from established tissues to where it's needed in new growth,...
...look up in the Reference section on the topic of VPD, vapor pressure deficit... this talks about how the right or wrong combo of T and RH% can strongly affect transpirtion rates...
So, the trouble is how to get it fixed with conditons hindering things as described,.. it might be that Zn/Fe were borderline before, and this simply tipped the scales,... I'd do a foliar spray with a dedicated micronutrient supp', and be sure to use a wetting agent so it coats and sticks better; get the undersides of the leaves especially as there are more stomata located there... treat the soil with a dose or two just as a precaution... that said, until conditions improve it may be difficult to fix this the usual way....
The very best product for this is a combo of Optic Foliar's Transport and that micronute supp' I mentioned (I like Earth Juice Microblast)... Transport is unique in that it allows temporary penetration through the cuticle layer and hauls whatever is dissolved in it along for the ride, carrying the goods directly into the tissues-
As for the other plant, I'd need pics to be sure, but if it's hitting lowers, it a mobile nute, likely N or Mg,.... symptoms are different for them though,... Go have a look at the Deficiency Pic Depot in the colored section above this one to see what I mean,...

 

[Marko]

THanks. Here is A few pics