DoubleAtotheRON
Well-Known Member
You're under CFL's?... hard to burn with CFL's. Canoeing or taco leaves can mean heat stress, or over transpiration due to low humidity. You should be around 65%, or even 70% at this point.
Help do I have thrips
- Thread starter Dazza1529
- Start date
DoubleAtotheRON
Well-Known Member
... and yes, they do look hungry.
More than likely it’s the humidity then as I’m running around 40-50 percent humidity at max so raising the humidity so you think this will fix my issue as temps are max 28 degrees so shouldn’t be that?
I’m feeding twice a day with 700ppm if I continue this the hungryness should subside?
DoubleAtotheRON
Well-Known Member
It should... watch your new growth. Here's a handy chart to show you where you need to be on VPD.
https://vpdchart.com/#F,56,80.6,79.7,0
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xtsho
Well-Known Member
That was me in the other thread that mentioned bugs.
Also some are saying that the plants are cannibalizing themselves due to the yellow leaves. One thing the OP didn't mention in this thread is that those are clones. If you look at the yellow leaves you can see where the tips have been cut off like many do when they take clones. Often times those original leaves will die off so it's important to look at the new growth.
Also some are saying that the plants are cannibalizing themselves due to the yellow leaves. One thing the OP didn't mention in this thread is that those are clones. If you look at the yellow leaves you can see where the tips have been cut off like many do when they take clones. Often times those original leaves will die off so it's important to look at the new growth.
Synchronicity
Well-Known Member
Thrips for me seem to come and go. They are susceptable to low humidity and air flow. If I can not see any signs of live thrips- then they may have gone.
I look for the thrips themselves, under a magnifying glass on the tops of the leaves. not past signs of feeding gone by.
They are easy to control with insecticidal soap. It depends on how many eggs are deposited. with many eggs down, then they may continue to hatch for a couple weeks (or more).
But of all the pests of cannabis- thrips rank right up there for me as the easiest to control. It takes a lot of thrips to really hurt your grow................
I would not panic- you are aware of them and should only treat for recent signs of live creatures
thats my 2 bits
I look for the thrips themselves, under a magnifying glass on the tops of the leaves. not past signs of feeding gone by.
They are easy to control with insecticidal soap. It depends on how many eggs are deposited. with many eggs down, then they may continue to hatch for a couple weeks (or more).
But of all the pests of cannabis- thrips rank right up there for me as the easiest to control. It takes a lot of thrips to really hurt your grow................
I would not panic- you are aware of them and should only treat for recent signs of live creatures
thats my 2 bits
Brilliant pal thank you so much what am I watching the new growth for what are telltale signs
Fantastic that’s took nute lock out my equation as that was what I feared seeing the yellow leaves thanks so much should I snip this leaf off and what am I looking at new growth for
DoubleAtotheRON
Well-Known Member
Look for healthy new growth.
Absolutely much appreciated would you say give them a spray with the thrips spray anyway and then continue to look for new growth being effected a little spray wouldn’t hurt for piece of mind?
xtsho
Well-Known Member
The one plant looks fine. The one with the yellow leaves looks rough. Given a little time it will probably get with the program though. Being that it's a recently planted clone I would give it a little time before doing too much. A week or 2 from now it should look fine with healthy new growth as it settles in and gets proper feeding. I'd just leave the leaves until they fall off on their own. But I tend to do as little as possible and just let the plants do their thing. All they need from me is feeding, light, and proper environmental temperatures. If you get those things right the plants will grow.
Synchronicity
Well-Known Member
No sir, I would not since I think it to be more important to be able to see the pest itself than to spray for peace of mind. I would take the energy and time of spraying and use it to monitor (look for) for the live thrips on the leaf surfaces - spraying can also be a small stress on the plant. It leaves a residue. Once you know what thrips look like and how they function, you then lose that fear of the unknown............. I would not let thrips intimidate me in that regard.
P.S.- I would follow the spray with another spray of just plain water to help with residue left behind
Synchronicity
Well-Known Member
Yep- I think that is best for the thrip thing............. with no thrips found, there will be no more new damage............ if just one or 2 leaves are infested, then you can pinch those leaves also if you can spare them.......
Synchronicity
Well-Known Member
Good point- you need those leaves on the young plant. Just check the leaves. If the adults are there then you can see them but they will be very small. Like not larger than 1/16 inch long.......and they skin off the surface tissue of the leaf tops. Usually tender, new growth to begin with. They leave a silvery appearance to the leaf surface ............ in small spots.
With plants that young, it will be easy
When I look at your photos and I enlarge them- I can now see the thrip damage. Check it out under magnification. I think it is your call as to whether to spray. If they dont get worse, I would not. If they do then I would spray but just keep an eye on it............... they probably have eggs down and spray will not kill those eggs
With plants that young, it will be easy
When I look at your photos and I enlarge them- I can now see the thrip damage. Check it out under magnification. I think it is your call as to whether to spray. If they dont get worse, I would not. If they do then I would spray but just keep an eye on it............... they probably have eggs down and spray will not kill those eggs
