What causes foxtails and why are they undesirable?

U

ukdave

Well-Known Member
I grew a stardawg plant that fox tailed and put out a few pollen sacks three grows in a row, I suspect due to excessive heat, hps bulb in too small of a tent and inadequate heat extraction. Never tried after resolving the problem, switched plant just in case it was a genetic issue.
 
Rurumo

Rurumo

Well-Known Member
They are mostly caused by heat stress. My outdoor temps got up to 109 and of course my window AC gave up the ghost that day and in spite of all my efforts, I got some significant leave damage on my plants. They've mostly recovered with probably just a slight drop in overall yield, but all 4 strains started throwing up foxtails like crazy. On a side note, the extreme heat stress caused them to produce a ton of trichomes a few days later, really early on in flower. They aren't bad at all, just be sure to check the trichs elsewhere on the plant when determining harvest date.
 
conor c

conor c

Well-Known Member
As others said heat stress is the biggest culprit and possibly too much N in flower dont help either also it can just be a genetic trait to be honest i find many new growers confuse stacked calyxes for foxtailing as well so theres a number of influences at work with foxtailing
 
BodegaBud

BodegaBud

Well-Known Member
Rurumo said:
They are mostly caused by heat stress. My outdoor temps got up to 109 and of course my window AC gave up the ghost that day and in spite of all my efforts, I got some significant leave damage on my plants. They've mostly recovered with probably just a slight drop in overall yield, but all 4 strains started throwing up foxtails like crazy. On a side note, the extreme heat stress caused them to produce a ton of trichomes a few days later, really early on in flower. They aren't bad at all, just be sure to check the trichs elsewhere on the plant when determining harvest date.
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That’s the problem is they are white haired but it looks like the older part of the bud is brown
 
BodegaBud

BodegaBud

Well-Known Member
What temp kicks them in? I have it at 80 but it’s gotten up to 90 sometimes a lil more on hot days
 
Rurumo

Rurumo

Well-Known Member
BodegaBud said:
What temp kicks them in? I have it at 80 but it’s gotten up to 90 sometimes a lil more on hot days
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90 will do it for sure, but it really isn't a big deal. Just harvest when the main bud is ready and ignore the foxtails, they might still be throwing white hairs when the rest of the bud is 50% amber trich's and ready to harvest. Always a good idea to scope multiple spots on a bud/plant.
 
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