Autumn is a critical time in the fight against pests and plant pathogens.
For these purposes, the most popular preparations among summer residents are used - iron sulfate and urea. Only before use it is necessary to accurately calculate the dosage.
Anastasia Kovrizhnykh, an expert of the online publication "BelNovosti", a scientist, agronomist, landscape designer, told how to properly use iron sulfate and urea in the garden.
Means and dosage
The concentration of the solution depends on the purpose of use.
Basically, a distinction is made between preventive treatment of young trees, older trees, and treatment when signs of disease appear.
In case of pest control, there are their own gradations.
From diseases
1. To treat young garden trees, as well as coniferous crops, a solution is prepared from 100-200 grams of ferrous sulfate per bucket of water.
2. If these are old trees, then 300 grams of the product will be required.
3. Treatment of affected trees is carried out with a solution prepared from 500 grams of ferrous sulfate per bucket of water.
From pests
It is recommended to use urea (carbamide) against pests.
With its help you can cope with the invasion of pests.
For the purpose of preventive treatment of healthy trees, 400 grams of urea are taken per bucket of water.
But if you have to deal with an insect invasion, then you can take 700 grams of urea per bucket of water.
At low temperatures and during frosts, urea is not used.
Expert: Anastasia Kovrizhnykh
