No weedkillers, no fungicides nor synthetic fertilisers are used for treating the cultivation seen in these surroundings: they have all been replaced by preparations of a natural origin, following the rules of organic agriculture
and the biodynamic principles.
Here are some examples:
Pheromones: active in protecting against moths, are introduced
to the rows of vines in the form of slow-release tablets and create
Catching cutworms by hand: these nocturnal moth larvae feed
on the freshly sprouting buds, especially the Nebbiolo, and are
removed after sunset.
Copper: in a proportion of 30-50 mg/sq.m (a quantity that is even lower than the limit set by organic agriculture regulations) is used against grape downy mildew, in combination with nettle tea, horsetail tea and chicory extract.
Sulphur: active against powdery mildew is used alone or in conjunction with potassium bicarbonate, chytosane and extract of bitter orange peel.
Pyrethrum: light-sensitive, administered at sunset and the effect lasts until next morning; it is particularly active against Scafoideus titanus, vector of golden flavescence.
Trichoderma Fungus: produces a protective film that protects and strengthens the roots of the plants.
Bacillus thuringiensis: if injected asleep in acidified water, this bacteria reawakens and is spread with an atomizer; it is active against lepidoptera.
Azadirachtin: extract of Neem seeds, insecticide.
Fresh manure on its own would not be sufficient for the required fertilising function of the soil: the load of “useful” micro-organisms inside it is too low for that. For this reason, even in ancient times compost was added, to provide an inoculation of the manure with “bombs” of active organic substances that are 100% natural. The manure is raked into triangular heaps, like those seen just in front of you, and covered with straw, in order to generate a temperature inside it that will help fermentation (the temperature is regularly checked).
Compost is put inside
that contains the biodynamic preparations from 502 to 507: yarrow, chamomile, nettles, oak, dandelion, valerian.
The heap is turned over 1-2 times per year: after 6 months the compost is ready, in the form of odourless loam, rich in micro-organisms and worms, and it is spread between the rows at the end of the harvest.