Powdery mildew: methods of control and prevention
Vegetables and fruits that were grown at home in the garden are more useful than store products. They do not contain chemicals that are used to stimulate growth, rapid maturation, etc.
But in order to collect a good harvest, you should learn how to properly care for plants. In addition to parasitic insects, the danger to the garden culture is powdery mildew (linen or ashtray).
Signs and causes of garden culture disease
Powdery mildew is a fungal disease. It occurs as a result of spore pathogenic microflora getting on the tops of the plant. Powdery mildew may be caused by infected plants that were not properly
processed in the fall . Fungal spores can also spread with wind, rain, birds, etc. They can also remain in old fallen leaves.
The optimal conditions for the development of pathogenic microflora is a moist and cool environment. For this reason, plants can get sick in May. The first signs of mildew infection in early spring are manifested in the form of a formed white coating localized on the lower part of the leaf. If
no measures are taken, then after 2 weeks the plant will be completely infected. Leaves and shoots will be covered with white mycelium. Damage of peduncles is not excluded.
Gradually, the plant begins to fade. Affected areas become brown. The leafy part dries and falls, and the fruits do not have a presentation. The taste of ripened berries is also reduced. At the end of summer, the fruiting bodies of the fungus form, which can survive the winter.
Methods of dealing with dew
To get rid of dangerous dew on perennial plants, for example, gooseberries, it is recommended to cut off all affected shoots in autumn, remove leaves from the garden, and then burn everything. If it was not possible to prevent infection, then it is recommended to start combating a fungal disease as soon as the first signs of infection appear. If you do not conduct timely
processing of garden crops, then save the affected areas will not work.
For the treatment of garden crops, you can use the chemical drug Topaz. An ampoule with 0.02% of this substance must be dissolved in 10 liters of water (settled). If you process gooseberries, then this amount of solution is enough for 6-7 bushes.
For summer residents who prefer not to use aggressive chemicals in their area to control powdery mildew, these methods are suitable:
- Aqueous solution of ash (wood). For spraying plants, 10 l of water and 3 kg of ash are needed. Irrigation is recommended once a week. To prevent clogging of the spray nozzle, you can use a broom.
- An aqueous solution of soap and soda. A bucket of water will require 50 g of liquid soap and 50 g of sodium bicarbonate. Processing is carried out with an interval of 7-10 days.
- Milk (1 L) and water (10 L). The use of a low fat product is recommended. Spraying is carried out 1 time in 7-10 days.
If the infection has spread to the fruits, then you can treat them with an aqueous solution of skim cream. For the recipe you will need 9 liters of water and 1 liter of buttermilk. It is recommended to irrigate 2-3 times in a row.
Repeat treatment should be 1 time in 7-8 days. Garden crops that have been bred and resistant to powdery mildew will help reduce the likelihood of infection.