Polyversum WP 5 g

Biological fungicide.
Homemade dosage: 5 g of product applied in 10 (20) litres of water is sufficient for 200 m2

Marketing category: III (free rotation)

Active ingredient: Pythium oligandrum. 1×106 oospore/g formulation

Effect:
The preparation acts in several ways. Metabolites of the mycelia of the fungus are taken up by the cultivated plant, which provide a form of internal protection. On the other hand, Pythium oligandrum is able to parasitize a wide range of fungi that damage plants (direct action).

Exposure:
The preparation must not be applied together with any fungicide!

In oilseed rape, mustard and oil radish, the product can be applied to the seed surface by wet spraying to control seedling diseases. It may be applied up to three times during the growing season.

In the autumn, treatment should be carried out at 4-8 leaf stage to reduce infection by autumn pathogens.

In the spring, treatment at emergence is effective against phoma and whitefly infection. Application at flowering is effective against alternaria spot.

In cucumbers, the product can be applied by wet drenching to the seed surface to control seedling diseases. Subsequent applications may be made up to three times by irrigation.

Combinability
The product may be combined with insecticides, foliar fertilisers and adjuvants.

Ideal conditions
Humid, moist conditions are required for the development of mycelia of Pythium oligandrum. Dry, droughty weather conditions are not recommended.

Prescribed crop protection technology:

In oilseed rape, mustard and oil radish, the preparation can be applied to the seed surface by wet drenching to control germination diseases.
The maximum number of applications during the growing season is three. In the autumn, treatments should be applied at 4-8 leaf stage to reduce infection by autumn pathogens. In the spring, treatment at emergence is effective against phoma and whitefly infection. Application at flowering is effective against alternaria beetle spot.


In cucumbers, the product can be applied to the seed surface by dry (small quantities of seed) or wet spraying against seedling diseases. Subsequent applications may be made up to three times by irrigation.


In cereals, foliar and malting diseases may be controlled by 3 applications before the first symptoms appear. If infection conditions warrant, the first application may be made in autumn at the time of leaf development. In spring, treatment at the 2-3 stem knot stage provides protection against foliar diseases, while spraying at the time of ear-flowering provides protection against fusarium aphidiophytosis.


In sprouted tomatoes, the product can be applied to the seed surface by dry (small quantities of seeds) or wet spraying to control seedling diseases. Also against germination diseases and white rot, the roots of the seedlings should be soaked in a suspension of the preparation before planting. After planting, irrigation is recommended as a protection.


In strawberries, against phytophthora root rot, it is recommended to soak the roots of the seedlings in a suspension of the preparation immediately before planting. After planting, the disease can be controlled by watering the soil in the beds. To control leaf spot, depending on the start of vine growth and the infection conditions, one or two sprays are recommended.


In brassica, the product can be applied to the seed surface by dry (small quantities of seeds) or wet spraying. Before planting, the roots of seedlings should be soaked in a suspension of the preparation. For peronospora and alternaria, it is recommended to start spraying at the seedling stage. After transplanting, spraying should be repeated once in damp, rainy weather up to 4 leaves.


In root vegetables (carrots, parsley, celery, parsnips), the product can be applied to the surface of the seeds by dry (small quantities of seeds) or wet spraying against germination diseases.


In carrots and celeriac grown for tuber production, field control of leaf spot in the field is recommended to be started at 3-4 leaf stage and repeated 3-4 times as necessary. In celeriac with gum, it is advisable to start spraying at the seedling emergence stage.


In lawns and turfgrasses, germination diseases can be controlled by dry (small quantities of seeds) or wet spraying on the seed surface. In vegetation, the product may be applied to established turf by spraying or irrigation. Control must be carried out at temperatures above 10 0 C. In spring, 2 applications at 1 month intervals are recommended, for golf courses 3 or more treatments with a 14 day rotation may be necessary. In autumn and summer, 1 treatment is recommended, 2 or more treatments may also be necessary on golf courses.


In forestry and ornamental nurseries, the product can be applied to the seed surface by dry (small quantities of seed) or wet spraying to control seedling diseases. For the control of pathogens infecting the roots or root collar, soaking of the seedling roots in the preparation solution is recommended before planting. After planting, the fungicide should be applied by irrigation (white mould) or spraying at intervals of 7 to 14 days, depending on the risk of infection.