We must make it clear that milk is a biological pesticide. On organic flowers and home grown flowers, vegetables and fruit trees, timely spraying of milk solution is the first choice for disease prevention.
Why can milk be used as a pesticide?
After years of research by scientists at home and abroad, it has been proved that certain proteins, amino acids, calcium and beneficial bacteria in milk are not only beneficial to plant growth, but also have obvious inhibitory effects on many harmful microorganisms.
As early as the 1930s and 1940s, scientists discovered that some proteins in milk can inhibit the virus from infecting plants. Some scientists speculate that the basic principle is that a certain protein and virus molecules in milk combine into a "molecular alliance" to prevent the virus from infecting plant cells.
By hand-applying tools and tools to the milk solution when working in fields such as tomato, cucumber, flower, etc., you can reduce the chance of sexually transmitted diseases.
Milk contains amino acids such as lysine, cysteine and tryptophan, which can be absorbed by plants to make plants grow healthier and better to resist bacterial infection.
The calcium in the milk is absorbed by the plant to make the epidermal tissue develop better, which can greatly reduce the level of attack and disease occurrence of the bacteria.
Bacillus subtilis, Bacillus coagulans and Trichoderma contained in milk are also beneficial bacteria that inhibit the infection of plants by pathogens. Even the pasteurized milk still contains these beneficial bacteria. A large number of studies have proved that Bacillus subtilis can inhibit Fusarium causing tomato blight, Bacillus coagulans inhibits gray mold, and Trichoderma has inhibitory effect on tomato bacterial wilt bacteria.
In general, it is a sentence: milk can be used to protect plants and prevent a variety of fungal, bacterial and viral diseases.
What kind of milk is more suitable when used as a pesticide?
It is best to skim liquid milk or milk powder, fresh or expired, milk that has not been degreased can be used, but long-term milk will have some odor.
How to formulate plant milk protection solution?
Very simple, 1 part of milk 9 parts of water, that is, 10% of the solution, up to 30%, otherwise, the leaves of the sprayed milk are easy to breed some moldy bacteria. Note that if you are using urban tap water, it is best to add a few drops of humic acid to the solution to remove chlorine and chloramine from the water. 15 kg of water can have 2-3 drops of humic acid.
What time is it appropriate to spray?
Before the onset of the plant, or when the spring plants begin to grow, choose a sunny weather to spray in the morning, not too early, or spray in the evening, cloudy or too hot.
How to spray?
Spray 7-14 days, spray 3-4 times in the season of easy disease, spray evenly, and strive to “wear” the plant with a protective clothing.
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