Use of Burgundy Slurry in Walnuts
Burgundy slurry; It is an effective pesticide prepared by mixing bluestone (copper sulphate) and lime with water in certain proportions and used for many years to protect fruit trees from various diseases.
In walnut cultivation, positive results are obtained especially in the fight against leaf spots caused by fungal and bacterial infections, anthracnose, bacterial blight and cancers. Maroon slurry is applied as insurance against many diseases.
When to Use Burgundy Slurry in Walnut;
In autumn, after 75% of the walnut trees shed their leaves, a 3% burgundy slurry is applied to the trees by spraying.
In the spring, before the eyes wake up, we apply the 1% burgundy slurry that we prepare in February or March (high parts of central Anatolia) by spraying the trees according to many regions.
Preparation of Burgundy Slurry (1%);
1 stage;
Put 1 Kg of slaked or 0.5 KG (half a kilo) of quicklime into your empty 100 lt container.
Let the lime melt by gradually adding water on it and half your container, that is, 50 lt.
Create hard water up to the section.
Stage 2; Another 50 LT
Put 1 Kg of bluestone in your container. Put water on it gradually so that the eye stone melts well. Fill the entire 50 LT container.
Stage 3; Slowly pour Göztaşı solution in your 50 lt container of 50 lt of calcareous water in your 100 lt container. In this way, you will obtain 100 LT Bordeaux mixture.
Stage 4; In your 100-liter container, a 100-liter Burgundy slurry consisting of 50 liters of lime water and 50 liters of Göztaşı solution will be obtained.
We should definitely check before applying the Claret Red Slurry;
It is desirable that the burgundy slurry prepared according to the procedure is blue, neutral or alkaline. Bluestone solution alone is caustic. In order to check whether the lime added is sufficient, a rust-free, 3-5 cm long nail is dipped in the prepared burgundy slurry and left for 4-5 minutes and then removed. If a dark red stain appears on the nail, a little more chalky water should be added. If the nail comes out spotless as it is, the medicine is well prepared and ready to use.
Preparation of Burgundy Slurry in Other Rates;
The materials and materials required to prepare 100 liters of burgundy slurry of 2% and 3% are as given below.
2,000 G. Bluestone and 1,000 G. Quick Lime for 2% Bordeaux Slurry
3,000 G. Bluestone and 1,500 G. Quick Lime for 3% Bordeaux Slurry
However, if it is desired to use slaked lime instead of quicklime, the amount of lime given above should be doubled.
Matters to be Considered;
* Lime never falls on Bluestone. If it is spilled, the structure of the drug deteriorates.
* Burgundy slurry should be used immediately, fresh. If it is to be kept, 200 g of sugar or 200 g of molasses is added to 100 liters, and if this is not available, 1 liter of skimmed milk is added. Thus, it can be stored for 10-15 days without spoiling.
* While preparing the burgundy slurry, metal containers such as iron and sheet metal should not be used.
* Burgundy slurry cannot be mixed with any medicine and thrown away.
* Slaked lime solution and bluestone solution must be filtered while pouring into the spraying tank. If quicklime is used, it must be drained after melting. If stones, soil, etc. that do not melt in the melt. If it remains, the remaining amount of lime should be weighed and melted again. In addition, if a strainer is not used, some residual particles cause the spray nozzle of the sprayer to clog.
* Starting from the upper branches of the tree, towards the bottom, without excessive, empty and dry branches, the whole trunk spraying should be done. After the claret red slurry is thrown, the spraying tool should be cleaned.
* Spraying should not be done on rainy, frost and windy days. If it rains up to 10 hours after spraying, spraying should be repeated.
* In diseases that are caused by bacteria and fungi, the agent will easily enter the tree trunk. For this reason, the disease is prevented from entering the tree by spraying mostly wound areas, flower eyes and leaf eyes. Some diseases are not cured after infection.