Mould problems, and strategies to reduce them - Page 3 - Australia/New Zealand - International Cannagraphic Magazine Forums

slownickel · 01-05-2018, 11:49 AM

In many parts of the US, there is high humidity and yet the good growers that balance their soil with enough Ca up front, get there P up high to begin with, get their metals ie Cu, Zn, Mn and Fe balanced and amazingly enough, no mold!

I know it is hard to believe and yes, it will only get one so far. Resistance is key, but what you will often see, is even the most resistant varieties need to have their nutrition balanced.

HaHaHashish · 02-03-2018, 02:37 PM

For sub-tropical and tropical areas where you can flower plants outdoors for most of the year, you will notice that at a similar time each year there will months of high humidity and high rainfall and there are months that are relatively dry. Time your plantings with this in mind. Plant fat leaved, dense bud, short flowering strains that are prone to mold so they will finish flowering during the dry months and plant your thin leaved, long flowering, mold resistant strains so they finish after the rainy season ...it's about timing and strain selection to minimize molded buds..and having a bit of luck go your way too!

To prevent damping off from killing your seedlings, have a well draining soil mix designed for seedlings (or use a standard bagged soil and add sand to lighten it..if the soil has manures, worm castings. compost &/or other natural ferts added to it then fungus gnats (fruit flies) and damping off is more likely to occur. I do top dress with some worm castings after the seedlings have grown for a couple of weeks and they respond well to this and anyway, by this time, damping off is not a problem as it only seems to affect just sprouted seedlings. When the seedlings have grown for 2 ~ 4 weeks transplant them into bigger containers filled with a soil that contains composted organic ferts.

If you have some seeds that you paid a small fortune for and you are loosing them to damping off, all is not lost, cut the seedling off just above where the damping off occurs (at soil level or just below) and treat the cutoff seedling like you would with any other cutting and it will root. Actually, I've found that these damping off seedlings will root faster than the usual branch cuttings. Anyone done this before?

01-05-2018, 11:49 AM	#21
slownickel IC Mag Supporter Join Date: Oct 2008 Posts: 2,149	In many parts of the US, there is high humidity and yet the good growers that balance their soil with enough Ca up front, get there P up high to begin with, get their metals ie Cu, Zn, Mn and Fe balanced and amazingly enough, no mold! I know it is hard to believe and yes, it will only get one so far. Resistance is key, but what you will often see, is even the most resistant varieties need to have their nutrition balanced. __________________ OH IF A MAN TRIED TO TAKE HIS TIME ON EARTH AND PROVE WHAT A MAN IS WORTH I WONDER WHAT WOULD HAPPEN TO THIS WORLD -Harry Forster Chapins' Tombstone
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02-03-2018, 02:37 PM	#22
HaHaHashish Member Join Date: Jul 2017 Posts: 156	For sub-tropical and tropical areas where you can flower plants outdoors for most of the year, you will notice that at a similar time each year there will months of high humidity and high rainfall and there are months that are relatively dry. Time your plantings with this in mind. Plant fat leaved, dense bud, short flowering strains that are prone to mold so they will finish flowering during the dry months and plant your thin leaved, long flowering, mold resistant strains so they finish after the rainy season ...it's about timing and strain selection to minimize molded buds..and having a bit of luck go your way too! To prevent damping off from killing your seedlings, have a well draining soil mix designed for seedlings (or use a standard bagged soil and add sand to lighten it..if the soil has manures, worm castings. compost &/or other natural ferts added to it then fungus gnats (fruit flies) and damping off is more likely to occur. I do top dress with some worm castings after the seedlings have grown for a couple of weeks and they respond well to this and anyway, by this time, damping off is not a problem as it only seems to affect just sprouted seedlings. When the seedlings have grown for 2 ~ 4 weeks transplant them into bigger containers filled with a soil that contains composted organic ferts. If you have some seeds that you paid a small fortune for and you are loosing them to damping off, all is not lost, cut the seedling off just above where the damping off occurs (at soil level or just below) and treat the cutoff seedling like you would with any other cutting and it will root. Actually, I've found that these damping off seedlings will root faster than the usual branch cuttings. Anyone done this before? Last edited by HaHaHashish; 02-03-2018 at 03:01 PM..
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