BOGARD 100 WG FOLIAR FUNGICIDE
- APVMA no.
- 48553
- Registrant
- SYNGENTA AUSTRALIA PTY LTD
- Formulation
- WATER DISPERSIBLE GRANULE
Bogard 100 WG Foliar Fungicide is a systemic triazole fungicide containing 100 g/kg difenoconazole, formulated as a water dispersible granule. It is designed for use in pome fruit orchards across Australia's major production regions, including the Goulburn Valley, Batlow, Orange, the Adelaide Hills, and Tasmania.
The product fits into integrated disease management programmes targeted at controlling black spot (scab) and powdery mildew in apples and pears. Its systemic active constituent offers translaminar and acropetal movement within foliage, protecting foliage and developing fruit during key risk windows when environmental conditions favour spore germination and disease establishment.
To preserve the longevity of difenoconazole and maintain robust disease control, Bogard 100 WG should be integrated into a balanced spray schedule alongside protectant fungicides. Growers and agronomists should consult the approved product label for exact application guidance and record every application within the orchard spray diary.
Active constituents
- DIFENOCONAZOLE100 g/kg
Registered uses
Withholding period
Apples, Pears: DO NOT HARVEST FOR 4 WEEKS AFTER APPLICATION
The withholding period text specifies that apples and pears must not be harvested for four weeks after the application of this product. Orchard management schedules must account for this clear four-week harvest clearance requirement.
Mode of action
Difenoconazole belongs to the triazole chemical group (FRAC Group 3). It operates as a demethylation inhibitor (DMI), targeting the fungal C-14 demethylase enzyme required for ergosterol biosynthesis. By disrupting ergosterol production, it compromises fungal cell membrane structure and function, inhibiting hyphal growth and preventing further infection development within plant tissue.
Resistance management
Pathogens causing pome fruit black spot and powdery mildew are susceptible to developing reduced sensitivity to Group 3 fungicides if subjected to repeated, exclusive exposure. To manage resistance risks, avoid consecutive applications of DMI chemistry. Rotate Bogard 100 WG with effective fungicides from different mode-of-action groups, such as multi-site protectants, and adhere to CropLife Australia resistance management strategies.
Tank-mix compatibility
Always verify physical and biological compatibility before tank-mixing Bogard 100 WG with other agricultural chemicals, trace elements, or spray oils. Avoid applying systemic fungicide mixtures when trees are under severe heat or moisture stress, or in combination with foliage oils unless specifically directed on the registered label. Conduct a small-scale jar test with local paddock water to confirm physical compatibility prior to large-scale tank preparation.
Handling and environment
Handle Bogard 100 WG in accordance with safety directions and personal protective equipment requirements printed on the product container. Avoid spray drift onto non-target vegetation, aquatic environments, or neighboring crops during application. For details on pollinator care, re-entry statements, and environmental protection guidelines, consult the approved label.
Common questions
- How does a systemic DMI fungicide fit into an early-season black spot programme?
- Systemic Group 3 fungicides like Bogard 100 WG move within leaves to protect newly expanding plant foliage during primary infection periods. They are best deployed in strategic rotation or tank mix with protectant fungicides to maintain strong disease control without placing excessive selective pressure on single-site chemistry.
- Why is alternating chemical groups critical in pome fruit orchards?
- Continuous reliance on a single mode of action encourages the survival of resistant fungal strains. Rotating Group 3 fungicides with different chemical classes breaks the disease cycle and preserves product efficacy across multiple seasons.
- What should I verify on the registered label before applying this fungicide for powdery mildew?
- Check the approved label for specific crop instructions, water volume recommendations, adjuvant requirements, and seasonal application limits for powdery mildew before commencing treatment.
- How do I plan around the four-week harvest withholding period?
- Ensure your orchard spray diary tracks anticipated harvest dates per block. All applications of this product must cease at least four full weeks prior to picking apples or pears to ensure full regulatory compliance.
- What steps should be taken prior to tank-mixing with other orchard chemicals?
- Perform a physical jar test using local water and crop inputs in proportional rates. Review the label safety notes for tank-mix cautions regarding physiological crop stress, adjuvants, or oils.