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Crop Protection Database – Technical information, conditions of use, application methods, resistance management and modes of action.

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Fungicida

BITERTANOL

Fungicide

GROUP

FRAC 3

GROUP NAME

Triazoles

MoA (Mode of Action)

Inhibition of ergosterol biosynthesis by blocking the CYP51 enzyme

RESISTANCE LEVEL

Medium-high

CLASSIFICATION

Systémique et partiellement translaminaire

TYPE

Specific site

ACTIVITY

Preventive, early curative and partially eradicative

Description

A systemic fungicide belonging to the triazole group, primarily used to control powdery mildew, rust, scab, and other foliar diseases caused by phytopathogenic fungi in numerous fruit, vegetable, and ornamental crops. It acts by inhibiting ergosterol biosynthesis through the blockage of the C14-demethylase (CYP51) enzyme, essential for the formation and stability of fungal cell membranes. Disruption of this process impairs mycelial growth, cell division, and spore production. It exhibits preventative and early curative activity, as well as some eradication action in the initial stages of infection. It also has upward systemic movement and partial translaminar activity, which promotes prolonged protection of treated foliage.

Application Conditions

It is applied by preventive foliar spraying or at the first sign of disease. It is important to ensure uniform coverage of the crop and to respect the recommended application intervals. It should be integrated into resistance management programs, alternating with fungicides with different modes of action.

Compatibility in Treatment Programs

Compatible with multi-site fungicides and integrated disease management programs

Cross-Resistance

There is partial or total cross-resistance within FRAC 3 fungicides

Maximum Number of Applications

Maximum 1-2 consecutive applications according to FRAC strategy

Recommendations for Use

Alternation or mixing with multi-site fungicides is recommended to reduce selection pressure.

Compatibility with Beneficial Organisms

Generally yes, when used according to authorized recommendations

Technical Notes

Bitertanol was widely used for its good systemic activity and efficacy against powdery mildew and scab in fruit trees. As with other DMI fungicides in the FRAC 3 group, repeated use can promote the development of resistant strains, so it should be used within resistance management strategies and integrated disease management.

Products Based on:

BITERTANOL

Related Treatments

Consulting on plant problems and diseases
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