Baffled and need some feedback please

[Hammer10]

Hello folks!

I am in a dilemma as to what is going on with my plants.

I started with five seeds of Durban Poison. Only 2 germinated following the germinating instructions and were doing fine after planting then all of a sudden I ran into what you see in the pictures.

I initially though parasite or bugs but could not find either even under a microscope. The plants have been properly watered and fertilized as I have done all this before in my 40+ years. They are growing outdoors as you can see. The only thing I am wondering is too much sun?

Any feedback would be great and thanks in advance.

Hammer10

 

[MrSauga]

I could be a Phosphourous def, check here and see if it seems similar to what you are experiencing. It could be locked out because of bad pH. Do you know the pH of the medium? What pH have you been at during watering. I'll put a mention in to @Pennywise who has a lot more knowledge in diagnosing plant issues.

 

[Hammer10]

Thank You for your reply.

I am using a simple potting soil and there is no specs on the bag. I wish....

How would I test the pH in the soil as I have never had to do this before? This is the first time using the same mechanics as before and never had issues.

Thanks for the mention!

 

[MrSauga]

How would I test the pH in the soil as I have never had to do this before? This is the first time using the same mechanics as before and never had issues.

It's a little trickier with soil. I bought a soil kit that measures NPK and pH off the Jungle website and also a meter to back up the results. Once you know what your pH is you can adjust it accordingly through watering with the correct pH. You made need to add acidics or alkalides depending where it sits. Cannabis in soil is perfect between 6.3 and 6.8 where all nutrients are available. Anything outside that window and nutrients get locked out.

 

[MrSauga]

here's what I use, plus a good pH pen which I didn't show. The pH pen is to test the water after you add your nutrients atc. You want to use the pen to make sure the water is between 6.3 and 6.8.

soilTester.JPG

• MrSauga
• Aug 3, 2018

soilMeter.JPG

• MrSauga
• Aug 3, 2018

 

[MrSauga]

Just so I am clear as well, the best was to test pH is from your soil run off. I prefer to use the meters and compare results. If they are close I know I am good. Meters and probes can give varying results.

 

[MrSauga]

The plants have been properly watered and fertilized

Are you using organic ferts or chemical? What type and how often?

I am using a simple potting soil and there is no specs on the bag. I wish....

For the size of the plants and the pot size the nutrients may have all been used up as well. I'm just speculating on that as you mentioned the hot weather as welltoo much sun which most likely meant a lot of watering.

 

[Pennywise]

The majority of deficiencies is due to ph locking out nutrients. Always start there when diagnosing issues.

 

[Hammer10]

Just so I am clear as well, the best was to test pH is from your soil run off. I prefer to use the meters and compare results. If they are close I know I am good. Meters and probes can give varying results.

This soil run off you mention would be the water that passes through the container to the collector tray correct? Is it possible to use a simple pool test strip to dip in the water collected? I am trying to avoid buy a meter.

 

[MrLoveGrow]

I had this on hand but it's a bit incomplete might help out. I found it in the scientific data on here. There is a large article describing the characteristics of each one. It also has a pest and mold info as well. I think I've read it twice in 2 years lol

 

[Hammer10]

Thanks! Looks like a Phosphorus issue based on this and my pictures. Correct me if I am wrong. If it is are there any home fixes for this?

 

[MrLoveGrow]

What day and stage were your plants on? And are you giving them nutes? What's your ph range when feeding ? All you need to do is flush you plant with clean water a bit, get your feed ready with proper PH ar 6.5 in soil where all nutrients are available. Understanding your npk and micro nutrients as well is crucial. I suggest looking at your bottles and checking which ones give what, and following the feeding schedule. But you might just want to put depending of strength a few ml or tablespoons per gal of phosphorus , wait a few days and diagnose as well as pull sick and dead leaves

 

[Hammer10]

Plants are roughly just under 2 months. The only nutrients I have added was miracle grow every 2 weeks as recommended. I have never use anything else when growing outdoors in a planter. I am just a amateur grower growing a couple plants every year. Thought I would try this breed of plant and have had nothing but issues.

 

[Pennywise]

Miracle grow isn't recommeded for cannabis, you'll have problems without a doubt until you find a more cannabis friendly nutrient.

 

[MrLoveGrow]

I agree it's meant for flowers and what not. Miracle grow is a time release fertilizer and your plants need something they can use when watered. Alaskan fish fertilizer and kelp fertilizer would be better and work. It's what I used first off and it's like 12 bucks a bottle.

 

[Pennywise]

I agree 100%

 

[bluter]

hey mr love you have a link for that deficiency chart ?

there are a few charts i see here that look useful. wish they were accessible in one or two spots. printing off a screen shot reduces the resolution to the point of useless. i see parts of stuff like that here all the time but finding it one place is like herding cats.

sorry hammered, back to regular scheduled thread replies..

 

[Pennywise]

Cannabis Plant and Pest Problem Solver - Pictorial

 

[Pennywise]

That was put together by Rob a number of years ago, bookmark it and you'll have awesome problem solver handi.

 

[Lawjr314]

Are you spraying some on them in the direct sunlight