Quote:
Originally Posted by Orchid Whisperer
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Interesting read. It does confirm that there is an optimum dosage and it does provide some evidence that there is also most likely a limit to how much silica can be dosed without adversely affecting the growth of the plant.
Thank you.
Quote:
Originally Posted by D_novice
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I don't think those spots are of a serious concern at the moment. If they continue to grow, and you start seeing bruised/watery patches, then it will be of serious concern.
You'd be surprised by the temperature of an indoors growing area. Do you have a thermometer where you grow your plants? This should give you a good idea of what the temperature in the growing area truly is. Do not go by how you feel. Your senses can trick you.
Note: In many of my older posts I keep telling people this. This is a piece of advice I don't think I'll ever discard. It has withstood the test of time regarding knowing what your grow room's temperature truly is. Your body will get accustomed to your environment. You may not be able to accurately tell how warm or cool the grow room actually is by just feeling it.
Humidity is a little bit easier to feel, but in order to quantify for the purposes of understanding your growing environment and control, it is best to get a meter that measures for relative humidity. Again, you might be surprised by what the relative humidity of your grow room truly is.
If humidity is an issue, you don't have to "give up". There are many methods for increasing the humidity. One of them is to get a humidifier or mister. Keep in mind that this is only 1 solution to your potential problem.
By the way, if your info is correct, you live in Marin County, CA. You probably live in a city that is along the coast somewhere up around the Bay Area. In fact, according to some of the maps I've seen, you probably live on a peninsula, and are therefore surrounded on three sides by water. Why would you believe that humidity would be such a struggle for you? According to
www.weather.com, the relative humidity in Marin County right now at 10:50 pm PST is 93% - 95%!
https://weather.com/weather/today/l/...p=f&par=google
The temperature is 48 F outdoors right now as of 6/4/2017, 10:50 pm PST.
It's no wonder
misting your Phals caused that much damage.
If there's a piece of advice I would repeat, it is, don't mist your Phals anymore. It will create more problems than good. And I highly recommend you measure the temperature and relative humidity in that grow room of yours.
Forget about those additives, get back to the basics and fix your growing environment. If the growing environment does not suit the orchids, additives won't matter much.
Also, bud blast is not necessarily solely a humidity problem. It can be, but it is not solely relegated to being a humidity issue. Bud blast can happen for a number of reasons. I'll name off a few other causes:
1. The plant was disturbed. Such as when the plant was repotted, where roots can get shifted around or damaged to some degree or another.
2. Issues with temperature. The plant may have unknowingly been grown in an environment where the temperature does not best support the development of the buds/flowers. Temperature may be too high or too low.
3. The plant is not receiving enough moisture. Under watering.
4. The plant is getting too much moisture. Over watering.
5. Predatory insects such as aphids or mealies damaging the buds.
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