Originally Posted by Rory Borealis
Sorry to hear about your bud rot issues. I grow in a hot and humid climate, as well. Try this remedy on your plants, begin with the first week of flowering. Dilute 1 tablespoon of dairy milk (whole milk, 2%, skim, it doesn't matter.) in 1 gallon of water. Spray the plants TWICE each week. The beneficial bacteria in the milk will spread all over the plant, creating a protective barrier against botyritis and other types of mold. My grow climate is VERY hot and humid and this has worked for me while growing dense indicas as well as sativas with thick bud structures. I hope this helps.
Hey, Rory B ... thanks for sharing that info about the milk.
I have used milk before, but usually only after I had already noticed some botrytis on the plant ... I did not find the milk as effective as potassium bicarbonate, but I was only applying it short-term to try and knock back the dreaded budrot after it had already established ... and towards the end of a grow with fat buds, even the K bicarb was no good as it couldn't penetrate the buds properly.
I like your remedy of spraying earlier and regularly with the milk to establish a protective barrier of beneficial bacteria ... I will try that next season. I am assuming that by the time the buds fatten up, the 'bene bacts' are established deep within the bud, preventing the fungal spores from setting ... i.e. prevention is easier than cure !!
The sad thing with the Thai Chiang Mai x Panama buds is that most of them looked good and healthy from the outside ... it was only after I had harvested and was doing some basic trimming that I noticed lots of the buds had some botrytis deep within them. The botrytis seemed to be starting from the pre-flowers located on the stem where every bud forms ... and which had subsequently died back, leaving an optimal site for the fungi to establish. I can see that a layer of 'bene bacts' would prevent the budrot from getting established on the dead pre-flowers.
How does the milk spray work in conjunction with the application of other foliars (e.g. BT for caterpillars, seaweed, fertilisers) ??