How to Identify Plants Affected by Root Disease – A Garden Sage Lesson


So how can we tell if our plants are affected
by root disease? There are definitely some circumstances that are more conducive to root
disease than others, number 1 recirculating water gardens. When we recirculate water in
the case of aeroponics gardens, top feed drip, flood and drain, deep water culture, all these
situations where the plants area all sharing water, essentially the ability to pass the
disease from one plant to another is not mitigated whatsoever, so we can see rampant spread of
disease. The only way that we’re going to see this
disease in a peat-based garden is if we overwater, if we water while the pot is still moist or
wet. We can compound effect, move into this overwatering effect, which then prevents the
plant from taking up as much water as it wants and lowers the oxygen levels in the root zone,
creating an aerobic environment, which then can actually allow the root disease to gain
a strong foothold in a “dirt peat-based garden.” Otherwise, if you allow a peat-based
garden to dry out properly between irrigations, there’s no way you’re going to have root
disease. In most circumstances, when we’re assessing
the root disease situations, it will generally be in a recirculating water garden. When we’re
running a recirculating water garden, we want to constantly be monitoring water temperature.
It should not be higher than 65 degrees Fahrenheit and cooler is generally better, but I would
say not really below 55 or 58, depending on the system. If it’s an aero system, you
could go a little lower, but flood and drain, you don’t want to hit the roots with huge
volumes of cold water. The cooler water has higher oxygen levels,
so it’s definitely going to have less disease in it. But the main things to also watch is
water consumption, food consumption, so you should have your reservoir set up so you can
tell how many gallons did those plants drink today and you make a note how many gallons
did they drink. They drink 5 gallons, okay, now I know, and you should see that amount
go up. Their water consumption should increase all the way up until fifth week of flower
for example. The other thing to watch is food consumption.
That’s important with regards to reservoir maintenance. If you’re not topping up your
reservoir with freshwater and you’re just allowing the nutrient solution to get more
and more concentrated, then you’re not really get to know where the food consumption is
at. So in general, I recommend topping up the reservoir with straight water, so that
we can tell how many PPM of food our plants eat in a 24-hour period. If you’re always watching water consumption
and food consumption and if you notice that it goes down, then you know you’re developing
a problem with root disease and you have to do something about it. If food and water consumption
goes up continually, then you’re on your way to a bumper crop. So pay close attention
to your water and food consumption. Make notes of these things. If you see that water and
food consumption is slowing down, you should definitely make steps immediately to get the
problem under control. You may need to use root disease preventatives.
There’s enzyme products. There’s products like Clean Slate and you may also need to
potentially strip the decaying root matter from the system with H2O2 and then stimulate
new wide roots with a rooting stimulator and then back to feeding roots. This is something
I call emergency reservoir maintenance. For details on that, check out the growers’
handbook. You’ll find charts explaining emergency reservoir maintenance programs. Just remember: watch your food consumption.
Watch your nutrient consumption. They should go up.

3 thoughts on “How to Identify Plants Affected by Root Disease – A Garden Sage Lesson

  • I have brown on some plants but others are bright white (dwc recerculating) no bad smell can it just be my seaweed fert?

  • You remind me of an Actor I cant remember the name but its remarkable the resemblance. You could easily pass as his science professor brother. Instant subscribe from me you can tell your a pro by the way you speak about these complex topics thank you.

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