Iron sulfate: gardening applications
The blue-green powder that you probably met in gardening is iron sulphate. Or iron sulfate, which is very versatile for treating plants and preventing everything else. It is even administered as a mineral supplement for top dressing. We tell in more detail!
Fighting Spring Frost
Treatment with a weak solution of iron sulfate until the appearance of buds helps to delay the beginning of the growing season for a couple of weeks. This is important for species that are sensitive to temperature extremes, such as grapes. After treatment, they tolerate the first spring frosts much better after removing the winter shelter.
Iron sulfate from pests
Active and preventive insecticide is one of the main areas of application of iron sulfate, because it destroys not only insects, but also their masonry with larvae. Be sure to choose the concentration according to the situation: minimal if the kidneys are already forming. And more, up to 5% - in the fall, when the leaves have fallen.
When processing fruit trees only with vitriol, without other auxiliary preparations, up to 50% of the eggs of the tinnitus can be destroyed. You need to process the trunk, all branches and the earth around the tree. The approximate dates are mid-April, but take into account climatic features, weather and the type of culture.
Keep in mind that even a strong solution does not cope with wintering parasites. So you need to wait until they wake up and begin to lay eggs. But do not delay, otherwise processing will harm the plant and the crop, because after all it is a rather aggressive remedy. Iron sulfate cannot be combined with organophosphorus insecticides.
Iron sulfate from fungus
The advantages of contact fungicides are their effectiveness and the fact that they do not accumulate inside. Iron sulfate is used for spring spraying, when the positive temperature finally stabilizes. The procedure can be repeated during flowering to protect the buds from the fungus.
For the recovery of pears, apple trees and other fruit trees, double-treat them with a 3% solution with a weekly break. The same concentration and frequency are needed to protect rose bushes from spotting. For currants and raspberries, do not exceed a concentration of 2-2.5%, and for pome seeds, all 5% is suitable. In viticulture, the vines are treated with 5% concentrate with an interval of two weeks from cancer, necrosis and anthracnose.
The fight against moss and lichens
A strong 3-5% solution of iron sulfate is very aggressive against lichens and mosses. Sprinkle the trees as necessary in spring or autumn with a break of 1-2 weeks - and soon you will see how lichens and moss themselves fall away. Then treat the affected area with a solution of ash and the same 5% vitriol.
Treatment of wounds and sections with iron sulphate
A saturated solution of vitriol (100 g per liter) is a very good antiseptic, so it is used for fresh damage. It is also suitable for cleaning hollows, preventing the spread of infection and for whitewashing trunks.
Iron sulfate from chlorosis
Pale leaves, inhibited development, sluggish flowering and underdeveloped fruits are signs of chlorosis. Apple trees, plums, cherries and other fruit trees often suffer from it. Typically, chlorosis is directly related to iron deficiency, so treatment is likely to correct the situation.
Dilute 50 g of iron sulfate in a bucket of water and treat the trees every 5-6 days until the symptoms disappear. For regular preventive treatment, a weaker solution is needed: 10 g per bucket of water. Such a procedure is carried out a little less often: about once a week.
Iron sulfate top dressing
Vitriol is often used together with top dressing, because the iron in it is in the most convenient and well-absorbed form for plants. The sure signs of deficiency are the dying off of shoots, yellowness of leaves and wilting flowers without other obvious causes and symptoms. Fruit trees are especially affected, because in their vital functions iron is indispensable for breathing.
For foliar top dressing, iron sulfate is bred in a proportion of 5-10 g per bucket. They also process beds: especially cabbage, potatoes and tomatoes. Add 100 g of vitriol in 10 kg of organics and mix into the soil during a dig.
Do not allow iron sulfate to come into contact with lime, even an insignificant concentration is important. Prepare exceptionally soft water for solutions. Otherwise, due to the reaction, compounds are formed that the plants cannot absorb.
Work strictly with gloves and take only glass or plastic containers. Do not store vitriol with food and do not use the dishes that you use in everyday life. Make sure that the solution does not get on the skin or eyes, and if this happens, immediately rinse with water!