What is that white powder on plants?
It’s a white colored fungus.
Its name is powdery mildew.
It attacks many crops’ leaves.
It doesn’t need high humidity.
The fungus can cover all of the plant’s leaves.
When the leaves are infected, they turn brown and shrivel.
It is recommended to use at least 3 kinds of different pesticides,
and alternate between them every 4 days,
in order to overcome pest’s resistance, and completely exterminate them.
There are 2 ways to eliminate Powdery mildew: Chemical, and organic.
Best pesticides for Powdery mildew,
Sulfur is the best organic solution to powdery mildew. It kills the spreading spores by disrupting respiration within their cells.
It does this either by residual action or, at higher temperatures, by volatilization.
Residual action requires direct contact with the spores.
Covers the egg, larvae, nymph and adult stages, causing suffocation.
It leaves no toxic residue on plants.
A biological fungicide containing a strain of the bacterium Bacillus subtilis.
The bacterial spores occupy space on the plant surface, and compete with the pathogens; then active compounds called lipopeptides, produced by the bacterium, disrupt the germination, and growth of invading pathogens.
Due to this action, resistance is not likely to develop.
A naturally occurring pesticide, found in seeds from the neem tree.
Azadirachtin is the most active component here.
It reduces insect feeding and acts as a repellent.
It also interferes with insect hormone systems, making it harder for insects to grow and lay eggs.
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