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Ongoing plant problems


Farmer_fam
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Terpinolene
Joined: 2 years ago

Hi, I've done about 4 grows and haven't been very successful.  My setup:

Viparspectra 450w leds

Grocell 1.8m tent

Fan and exhaust fan on timer

I monitor heat and humidity and it never gets above 23c/73f, I have thermostat heater as it's winter here. 

I don't think I'm overwatering either.  Have had lots of bugs but that has cleared up somewhat

My plants seem to start well but periodically become very limp and yellow.  I've tried boosting with nutrients, ive raised my lights to a distance of 80cm / 32 inch (basically as high as possible)

They are always small plants as well. Big one us about 50cm

The pics are in flowering stage

Please help if you can - I think it's light intensity, but have tried other leds that have a dimmer so could experiment with intensity, but couldn't make it work

Any help is appreciated

Thanks in advance

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Macky
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OG
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(@macky)
Beta-Pinene
Joined: 3 years ago

Welcome to Percys mate, no pics was uploaded, can you add on so we can have a look? Smile

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Farmer_fam
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Terpinolene
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IMG 20200820 212138
IMG 20200820 212133
IMG 20200820 212145

2nd attempt on pics

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Macky
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OG
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Beta-Pinene
Joined: 3 years ago

As the leaves sort of go plae down the whole plant, I wouldnt say it was the light mate. Usually leaves like like are an extreme case of potassium def. But that can be caused by many things. The bugs may have also caused the issue. 

Were they spider mites? 

What are you feeding the plant? 

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Farmer_fam
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Joined: 2 years ago

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Terpinolene
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@macky

I haven't done much feeding tbh, but have used powerfeed 14/1.4/8 npk (tomato and vegetables) recently by way of troubleshooting.  It didn't seem to have any impact.

The insects looked liked small, black gnats.  The pics I saw of spider mites were red, so if you're referring to those, I didn't experience them. 

Just a note: I found previously that if I put the plants outside, they improved, but I don't get much sun and it's winter here at the moment. Obviously I want to get my rig working 

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Macky
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OG
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Beta-Pinene
Joined: 3 years ago

yer tht food mix has way too much nitrogen in and not enough phosphorus, thats going to cause problems mate. 

Spider mites come in different colours too, sometimes they are black, white, red, purple. 

I would drop the feed your using now and look for a PK booster like, canna pk 13/14. The plant doesn't need much nitrogen in flower. 

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Farmer_fam
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Terpinolene
Joined: 2 years ago

Lol I actually have that.  Will try now 

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