When looking for a good, effective drug to rid cultivated plants of oidium caused by powdery mildew fungi, it is recommended to choose the Collis fungicide. The drug is able to provide good protection of grapes from fungal infections from spring to late autumn, without affecting the quality of the original product.
Composition, purpose and release form of the Collis fungicide
The main components of the fungicidal drug:
- 200 g/l boscalid;
- 100 g/l kresoxim-methyl.
Boscalid belongs to the chemical group of carboxamides and has a mechanism of action that extends to a certain spectrum of pathogens. Kresoxim-methyl inhibits mitochondrial respiration by inhibiting the activity of cytochrome c reductase.
The drug is produced in the form of a suspension concentrate in plastic canisters from 1 to 10 liters. Prescribed for the treatment of oidium at any stage in different grape varieties.
How does the drug work?
During treatment, some components of the fungicide remain on the surface of the plant, providing reliable protection against resistance and damage by other pathogens, while other substances pass into the body and spread through the conduction system in search of the pathogen. The essence of the fungicide's action is to inhibit the mitochondrial cycle. Subsequently, breathing difficulties appear, the formation and germination of spores stops, and further development of the infection is excluded.
Advantages and disadvantages
The Collis fungicide is distinguished by the presence of the following positive qualities, thanks to which it is popular with many gardeners:
- effective disposal of grape oidium even in the later stages of infection;
- exclusion of resistance due to the presence of two active components in the composition;
- possibility of use in integrated protection systems;
- the duration of the protective effect after the procedure is up to 2 weeks;
- safety for the environment and living organisms;
- neutral effect on the fermentation process and taste quality of wine.
The only disadvantages include the drug's limited action on certain crops and the treatment of selected types of infections.
Consumption rate
The consumption of working fluid should not exceed 1000 l/ha. And the optimal amount of the drug used to prepare the solution varies from 0.4 to 0.64 l/ha.
Preparation of working solution
The solution should be prepared before the procedure. To make a high-quality solution, you need to fill the tank 1/3 with water, add the required amount of the drug, first turning on the stirrer. Add the missing amount of water and begin processing the area.
Instructions for use
The first spraying should be carried out during the growing season, when inflorescences just begin to form, for preventive purposes. Further treatments should be carried out at intervals of 12 days.
For greater effect, it is recommended to perform 3 procedures.
Treatment is also carried out in the first days of the appearance of the initial symptoms of oidium and gray rot. The period between the last treatment and the date of collection must be at least 50 days. Spray the plant in the morning or evening in the absence of precipitation and strong wind.
Important! Pay great attention to the leaves, since it is on them that harmful fungal microorganisms settle.
Safety precautions for use
Despite the moderate danger, certain recommendations for use should be followed to avoid harm to the body. Carry out the treatment in special clothing, use gloves and safety glasses. To protect your respiratory tract from chemicals, it is better to wear a respirator. Make sure that the drug does not come into contact with the skin and mucous membranes. At the end of the event, wash your hands and face with soap.
Fungicide toxicity
Fungicide "Collis" belongs to the 3rd class in terms of toxicity to humans and pollinated insects. Reptiles and amphibians are in serious danger.
Compatibility
By mixing the Collis fungicide with the Acrobat Top preparation, you can carry out comprehensive prevention of grapes from the most common fungal diseases. For accelerated disposal and reliable protection against oidium, use the fungicides Collis and Boskalid. It is easy to eliminate the development and protect a cultivated plant from mildew using a complex of 3 effective drugs: “Collis”, “Dimethomorph”, “Dithianon”.
There are no restrictions on combining the Collis fungicide with other similar drugs, but before combining it is important to do a compatibility test.
Storage rules and periods
Store in a dark, dry place at a temperature of 10 to 30 degrees for no more than 3 years from the date of manufacture.
Similar means
Fungicide "Collis" has no analogues.
