I lifted a few interesting bits of funky science from that page, if you dont wanna hunt past the breeder specific details. i wanna trial these... dont know if they works for real tho
Liverwort Extract
Bryophytes belong to the group of the oldest known land plants are on our planet since 350 million years. One of the features that helped bryophytes to survive and maintain their place in today’s flora is their content of biologically active compounds. These protect the usually delicate plants not only from fungi and other micro-organisms but also from insects and slugs, which are common dangers in the bryophytes’ habitats. In a way the biochemical compounds take the place of higher plants’ thick cuticle and bark. In some ethnic groups the fungicidal and bactericidal effect of bryophytes has been known from time immemorial. North-American Indians used mosses to treat burns and open wounds. Chinese traditional medicine names 40 kinds of bryophytes, that were used to treat illnesses.
Effect of entire liverwort extract on tomato plant infected with Phytophtora infestans.
Left: treated with extract. Right: without extract. Photo & info courtesy of Uni Bonn.
The Phytopathological Institute in Bonn, Germany was the first to test Liverwort extract. Green house tests showed that plants (tomato, pepper, cucumber, wheat) treated with liverwort extract were distinctly less affected (if at all) by fungus than untreated plants. Interestingly the efficacy was noticeably higher than that of commercial fungicides.
Garlic extracts:
absorbed by the plant and changes the chemistry of the foliage. This causes a shift in the emitted radiation spectrum or more simply scientific: the ’smell’ of the plant. Insects, which are genetically coded to find their food by scent, do not ’find’ the plants anymore. The well-known anti-bacterial and antibiotic effects of the garlic prevents many infectious diseases such as mildew and grey mold. - See more at:
http://www.mandalaseeds.com/Guides/Preventing-Bud-Mold#sthash.AFPAipQV.dpuf