Protecting roses in greenhouses
Roses can be affected by fungal, bacterial, and viral diseases.
Root rot can become widespread if water and temperature conditions are not met, causing the death of both young and mature plants. Caused by pathogens such as Fusarium oxysporum, Pythium debaryanum, Verticillium albo-atrum, and Rhizoctonia solani.
Infectious blight or stem canker of roses (Coniothyrium wernsdorffiae), common rose canker (Neonectria galligena), cytosporosis (Cytospora rosarum), branch dieback (Botryosphaeria dothidea), and cylindrocladium (Cylindrocladium scoparium).
Among bacterial diseases, the most common are: bacterial root canker (Agrobacterium tumefaciens), bacterial stem canker (Pseudomonas syringae), and bacterial wilt (Pseudomonas (Ralstonia) solanacearum).
Viral diseases: rose streak virus (RSV), rose wilt virus (RWV), tomato wilt virus (TSWV), tobacco necrosis virus (TNV), and tomato ringspot virus (ToTSV). The main measures for preventing and controlling viral diseases include post-harvest clearing of greenhouses from plant debris, greenhouse disinfection, quarantine, vaccination, and antiviral treatments, starting with seedlings.
Protection scheme for roses in greenhouses
Before sowing
After disinfection, wet treatment
of glass and structures,
or cold fog gasification
Gliocladin, WP
60 g/ha
Pathogen complex
Rooting cuttings
Mixing the preparation
Trichocin, WP
30 g / 250-300 l of substrate
before filling the pots or
adding to the seedling pot
Gliocladin, TAB 1 tablet
per pot of 0.3-0.8 l.
When using mineral cubes, water with a solution.
Gliocladin, WP
30 g per hectare of seedlings
Root and basal rot, wilting
After the emergence of young shoots
Watering seedlings at the 1-2 leaf stage
of the solution
Alirin-B, WP 30 g
per hectare of seedlings
Root and basal rot, wilting, root cancer, brown bacterial rot, cylindrocladium
Planting seedlings in a permanent location
After planting seedlings in the ground or
5-6 days after planting in mats,
apply via drip irrigation
Gliocladin, WP
60 g/ha or
Mycosar, WP
200 g/ha
Root and basal rot, wilting
Apply via drip irrigation after 2-3 days
Alirin-B, WP
60 g/ha +
Gamair, WP 60 g/ha or
Alirin-B, WP (mod.) 120 g/ha, or
Gamair, SC 5 l/ha
Root and root rot, wilting, bacterial wilt, bacterial canker, bacterial black spot
1-5 months of vegetation
Addition to the substrate through drip irrigation
monthly Alirin-B, WP 60 g / ha +
Gamair, WP 60 g / ha or
Alirin-B, WP (mod.) 120 g / ha,
orGamair, SC
5 l/ha, or
Mycosar, WP
200 g/ha
Root and basal rot, wilting, root cancer, brown bacterial rot, cylindrocladium
Foliar spraying monthly
Gliocladin, WP
60 g/ha or
Mycosar, WP
200 g/ha
Gray rot
Alirin-B, WP (mod.) 120 g/ha
Powdery mildew, stem cancer
6th month of vegetation
Addition to the substrate through drip irrigation
monthly Gliocladin, WP
60 g/ha,
Alirin-B, WP 60 g/ha +
Gamair, WP 60 g/ha or
Alirin-B, WP (mod.)120 g/ha,
or Gamair, SC
5 l/ha, or
Mycosar, WP
200 g/ha
Root and root rot, wilting, root cancer, brown bacterial rot, Cylindrocladium
Foliar spraying monthly
Gliocladin, WP
60 g/ha or
Mycosar, WP
200 g/ha
Gray rot
Alirin-B, WP (mod.) 120 g/ha
Powdery mildew, stem cancer
7-12 months of vegetation
Addition to the substrate through drip irrigation
monthly Alirin-B, WP 60 g / ha +
Gamair, WP 60 g / ha or
Alirin-B, WP (mod.) 120 g / ha,
or Gamair, SC
5 l/ha, or
Mycosar, WP
200 g/ha
Root and basal rot, wilting, root cancer, brown bacterial rot, cylindrocladium
Foliar spraying monthly
Gliocladin, WP
60 g/ha or
Mycosar, WP
200 g/ha
Gray rot
Alirin-B, WP (mod.)120 g/ha
Powdery mildew, stem cancer