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How to use sulfur in the vegetable garden and on fruit plants. Sulfur as a natural pesticide for the control of pests that devastate the crop.
Thesulfurit is very useful invegetable garden: it helps us to safeguard the health of plants and to defend them from attack by various parasites. On this page we will find out how to use sulfur and when it is really effective.
Sulfur, what is it
Thesulfurit's anatural pesticideof mineral origin. It is useful against many plant diseases, especially against fungi that trigger powdery mildew (or white sickness) and against the rust mite that damages tomatoes.
Sulfur on plants
Thesulfurit's anatural pesticidesurface, therefore it does not penetrate into plant tissues. It is used for its preventive action which is expressed by preventing the germination of fungal spores.
Sulfur on plants is often used as a fungicide: it acts in the form of vapor by sublimating. Sublimation is the phenomenon according to which the transition of the "solid -> gas" state occurs without passing through the liquid intermediate. In other words, the sulfur powder evaporates in a gaseous form and inhibits the proliferation of fugine spores, counteracting the white sickness and other mycoses.
Its pesticide power depends a lot on the trend of its state curve: the faster the sulfur passes from the solid state to the gaseous state, the more effective this natural pesticide will be. The sublimation rate depends on the temperature, humidity and size of the sulfur particles. Sublimation is faster at high temperatures and low levels of humidity in the air.
Sulfur for plants, what to observe
Thesulfur on plantsit is distributed evenly only if the mineral particles are small enough. A good coverage is given by sulfur with particles with a diameter between 1 and 8 microns. Furthermore, the smaller the particles, the faster the sublimation will be and, above all, the lower the persistence of sulfur on the plants (crucial factor when it comes tofruit treesand vegetables ready for harvest).
A sulfur given by large particles is more difficult to distribute evenly and the risk of running intosulfur residues on vegetablesand on fruit it is high.
Very small particles (diameter between 1 - 8 microns) will allow the sulfur to sublimate quickly. It is important, however, to choose the appropriate size based on the temperatures: with temperatures above 30 ° C the sulfur sublimates too quickly with the risk of phytotoxicity, for this reason it is recommended to distribute the sulfur on the plants in the evening.
Wettable sulfur and ventilated sulfur for garden care
Thesulfurit's anatural pesticide, therefore allowed in organic farming and can also be used willingly in the field of domestic gold. For the care of the family garden, on the market, there are many formulations to be diluted in water that take the name ofwettable sulfur. Wettable sulfur is useful against a large number of fungal diseases.
Less common are dry treatments (ventilated sulfur) which for distribution requires a bellows. For the treatment oftomatoventilated sulfur is more suitable.
When purchasing thesulfur for garden plants, make sure that among the ingredients, under the item"composition"Selenium is not mentioned or "Selenium free" is specified. Selenium is not toxic, however if the product is used inappropriately, it can accumulate in large quantities in the soil, causing damage to plants and to all organisms that feed on it.
Following treatments based onsulfur on the vegetable garden, you will have to wait for a safety time of 5 days to be able to harvest and use the vegetables. The same “safety interval” must be respected for the fruit harvest.
In case of white sore, sulfur-based treatment should be performed at the first symptoms. Sulfur can be used on garden plants, fruit and ornamental plants. It can be effective against the white sickness of roses.
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