The natural defense of the garden can use many means to rid cultivated plants of harmful pests the use of natural decoctions and macerations is particularly interesting because, in addition to having no consequences for the environment, it is a zero cost . We therefore discover below the properties and the preparation of the infusion of tansy, a self-production that can be really useful for the garden, other useful recipes can be found on the page dedicated to natural preparations.
The (thixag_12) tansy (thixag__12) ( (thixag_14) tanacetum vulgare (thixag__14) ) is a spontaneous plant of the Compositae family, typical of rural meadows, easily recognizable at the time of flowering by its very characteristic yellow (thixag_12) in shape flower ball (thixag__12). It can be found more or less all over Italy, but if you don’t have a place to harvest it, it is easily cultivated.
In the burrow there is an oil called thujone which makes the plant poisonous and has a pesticidal effect, one can thus obtain a useful decoction for the defense of the garden. The use of tansy against parasites is particularly useful repel insects of the genus Lepidoptera, such as the moth, beetles, moths and borers.
How to prepare tansy decoction
How to use the burrow in the garden
The properties of tansy
How to prepare tansy decoction
The preparation decoction or infusion of tansy is very simple: first you need to get the plant, in the preparation you can use the whole aerial part (then flowers, leaves, stem ), avoiding only the thickest stems. We can use both fresh and dried plant.
To prepare the infusion, boil the water, once it boils, turn off the heat and add the tansy, leaving half an hour of infusion . The procedure is the same as we use to prepare a tea or an infusion, extending the infusion time to extract the useful substances in the best case.
Then we will go to filter the liquid , discarding the plant residues to be able to spray the decoction with a nebulizer. Before using our natural pesticide, we will go to dilute it with more water.
The ideal is to always use rainwater, free of disinfectants such as chlorine and not too calcareous.
To make the decoction use approx. 50 grams of fresh tansy per 100 ml of water . If you use dried tansy instead, 5 grams of the plant will suffice. The infusion thus obtained will be then diluted in water in proportions of 1 to 10. Then, after dilution, we will have one liter of infusion for 50 grams of fresh tansy (or every 5 grams of dried plant).
In all these herbal preparations, the dose is not binding: the more we use, the more concentrated the result will be. A stronger decoction can be diluted more or less used during treatment.
How to use the garden den
Once the concoction is prepared, we can use it in the garden. Repellent action of the preparation has a wide spectrum, but the insects against which it can be used with the best results are the Lepidoptera, among which we remember the moth, the guinea pig, the moth and the moth. The decoction also repels halos and aphids.
The repellent effect on perches and Lepidoptera makes this preparation a particularly useful treatment. for growing cabbage and in general of all cruciferous plants, which are among the most harassed by these insects.
do treatments from tansy the diluted substance is sprayed directly on the plants, it is better to avoid doing it during too sunny hours and prefer the night. The use can be preventive, spraying once every 10 days throughout the duration of the culture, there are no contraindications related to phytotoxicity. The decoction can also be used when the insect is already present, bearing in mind that it is a mild remedy and in this case it may be appropriate to use more drastic methods, such as an organic insecticide (for example, neem oil).
For safety it is better not to treat with a decoction of tansy at least one week before harvest to prevent toxins from entering the vegetables that will be eaten later.
Over the years, the burrowing plant has had a medicinal use, it has been included among the medicinal plants and has been used in particular against intestinal worms or in case of aerophagia. They also made nutmeg compresses to soothe toothaches.
However, the toxins in this plant make all food use inadvisable, much better to use the den against garden and orchard insects, harnessing the toxicity for a good cause.