Precise whiteness

Precise whiteness

Is a fungal disease that is considered one of the most serious diseases affecting many crops such as wheat, barley, grapes and crops

The cucumber species such as cucumbers and zucchini and different crops are infected with different strains of fungus

It is easy to distinguish this disease from its obvious viscous viscous symptoms

Dye on grapes

Dandruff whiteness is the most serious grape disease, but dandruff is more dangerous in destroying the fruit. Flocculation is more dangerous in humid areas, while dandruff spreads in wet or dry areas

Most varieties of grapes are highly susceptible to this disease due to their maturation to the time when the temperature and humidity of the atmosphere are suitable for infection, so usually the early varieties survive maturity of infection to maturity before the appropriate conditions for infection


The symptoms of the disease appear on all parts of the plant located above the surface of the earth (leaves, twigs, flowers and fruits) in different stages of composition

Symptoms on the leaves

The leaves show fine gray white patches on the upper or lower surface or both surfaces together but are more visible on the upper surface. These patches extend in appropriate conditions during the dry hot weather. As the infection progresses, the color of the infected tissue becomes browned due to tissue death until the entire surface of the leaf is affected. The leaves tend to be very twisted and the leaves tend to dry, dry and fall

Injury of flowers and fruits

The infection leads to the decay of floral clusters and low contractions of fruits. The fruit injury at the start of its formation leads to the growth and stop the growth of gray layer, but if the fruit is in the advanced stage, it grows irregular growth and dry and take an abnormal color (brown and black) and often break and not mature. As the infection intensifies, the infected areas emit a foul odor that resembles the smell of rotten fish as a result of the degradation of the protein mexillium

A high humidity of 80% and a temperature of 25 ° C are the appropriate conditions for injury

Duck on onions


There are two aspects of the injury

The first appearance: Hontige of systemic injury in the cultivation of infected moles, where the leaves appear pale spots oval, consisting of a gray Nosogbip colored magenta in the wet atmosphere and lead to severe injury yellowing of the leaves and mingling and death and has a rash of light and dwarf and weaken, which leads to break because of the weight of the light Appearance II: Local infection with the appearance of patches vary in shape and size of light color on the leaves and white fluff shows the place of injury, which increases the damage of the growth of some objects throwing at these spots

The method of infection

The bacteria are scattered in the air and fall on the plants and the tube of germination penetrates the host through the gap and grows the basilar among the cells and the bacteria again and restore the cycle and injury increased by 90-100% moisture and availability of cold air and cold systemic infections of the resident masseli in the clutches between the buds of the buds Static and base disk

Source of infection

Ground germs present in infected parts and soil, which retain their vitality for several years where seedlings grow and infect the bulbs used as seeds


Disposal of infected residues of crop Agricultural cycle Cultivation of intact bulbs Moderation in irrigation Spraying of plants

the cure

A B.S product is a natural product from a Spanish company that has no period of prohibition