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

#FU13#

FunInAca

CHINOMETHIONAT / QUINOMETHIONAT

Fungicide / Acaricide / Insecticide

GROUP

FRAC U13

GROUP NAME

Quinoxalines

MoA (Mode of Action)

Interference in cellular respiratory and metabolic processes

RESISTANCE LEVEL

Low-medium

CLASSIFICATION

Contact

TYPE

Mode of action not fully defined

ACTIVITY

Primarily preventative

Description

A contact fungicide and acaricide belonging to the quinoxaline group, historically used for the preventative control of powdery mildew and certain phytophagous mites in fruit trees, vineyards, vegetables, and ornamentals. It acts by interfering with essential metabolic processes related to cellular respiration and energy production in susceptible fungi and mites. Its action is primarily superficial and preventative, particularly affecting spore germination and initial mycelial development. It also exerts activity on different mobile stages of some mites by altering physiological and metabolic functions.

Application Conditions

It was applied as a preventative foliar spray, ensuring uniform and complete coverage of the plant surface, especially the undersides of the leaves where mites and fungal structures may be found. As it is a contact product, it had to be applied before or at the beginning of the infection or infestation to guarantee effectiveness. It was recommended to alternate it with products with different modes of action within integrated pest management programs and resistance control strategies.

Compatibility in Treatment Programs

Historically compatible with fungicides and acaricides used in IPM programs

Cross-Resistance

Not widely documented

Maximum Number of Applications

According to historical conditions of authorized labeling

Recommendations for Use

Historically recommended in alternation with fungicides and acaricides of different modes of action

Compatibility with Beneficial Organisms

It may partially affect some beneficial arthropods depending on the dose and application conditions.

Technical Notes

Chinomethionate, also known as quinomethionate, was historically notable for its dual fungicidal and acaricidal activity, especially against powdery mildew and certain phytophagous mites. Its use has declined considerably, and in many countries it has been restricted or withdrawn due to toxicological and environmental concerns.

Products Based on:

CHINOMETHIONAT / QUINOMETHIONAT

Related Treatments

Consulting on plant problems and diseases
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