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Lactobacilli, a natural Fungicide

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Lactobacilli, a natural Fungicide

Post  has55 on 5/2/2017, 9:45 pm



Last edited by camprn on 5/26/2017, 12:07 pm; edited 1 time in total (Reason for editing : edited title)
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Re: Lactobacilli, a natural Fungicide

Post  BeetlesPerSqFt on 5/3/2017, 1:03 am

A bit has been lost in the translation from the linked page to the page it uses as a reference:
http://theunconventionalfarmer.com/recipes/lactobacillus-serum/
I like the directions here ^ better... 

The separation would be into "curds and whey" not "milk fats and lactose" - I think the use of the short-hand lacto for the bacteria was confused as shorthand for lactose. Whey does contain lactose - but the liquid is only about 5% lactose (this jumps to closer to 70% once dried - but still not 'just about pure', nor are the curds lactose-free.) The original article suggests giving the whey to cats, but many (adult) cats are lactose intolerant. For comparison milk is also around 4-5% lactose. Also, it's Bacillus subtilis, not Bacillus Subtitles. (Autocorrect doesn't science well!) And these references indicate that Bacillus subtiliis induces pore(stomata) closing rather than "allowing the pores on the plant leaves to open up, and stay open longer":
https://www.researchgate.net/publication/276500494_Bacillus_subtilis-regulation_of_stomatal_movement_and_instantaneous_water_use_efficiency_in_Vicia_faba
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-313X.2012.05116.x/abstract

-- The closing of the pores helps prevent pathogens from entering via the pores (stomata), and can help the plants survive under drought conditions since they lose water through their pores when they are open.

I would be tempted to skip the rice step and use an active-culture yogurt to inoculate the milk because yogurt contains already contains mostly or just (it's brand dependent) Lactobacillus spp. On the other hand the native air-borne lactobacilli might be more compatible with plants than those chosen for their compatibility with humans/yogurt-making.

I was actually wondering just the other day if encouraging bacterial growth to compete with fungi is why/how milk spray help stop/prevent mildew on squash/cukes. A spray that already has lots of bacteria in it seems like it would be more effective than fresh milk.
Perhaps compost tea spraying also works, in part, by inoculating the leaves with a diverse culture of bacteria that can grow to exclude fungi.
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Re: Lactobacilli, a natural Fungicide

Post  has55 on 5/3/2017, 1:09 am

BeetlesPerSqFt-thank you for better clarification.
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