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This product is a 50% kresoxim-methyl water-dispersible granule (WDG) formulation, belonging to the strobilurin (QoI, Quinone outside Inhibitor) class of broad-spectrum fungicides. Kresoxim-methyl is a synthetic strobilurin analogue derived from the natural fungicidal compound strobilurin A produced by the wood-rotting fungus Strobilurus tenacellus. It acts by inhibiting mitochondrial respiration at the cytochrome bc₁ complex (Complex III), blocking electron transfer and preventing ATP synthesis, thereby stopping spore germination, mycelial growth, and spore production. It exhibits protective, curative, and eradicative activity with strong translaminar movement and vapour-phase redistribution.
Suitable for various crops such as cucumber, tomato, pepper, wheat, rice, apple, pear, strawberry, grape, banana, watermelon, melon, tobacco, ornamental plants, and medicinal herbs. It is used to control a wide range of fungal diseases including powdery mildew, scab, leaf spot, rust, early blight, and Fusarium head blight. Please use according to the recommended dosage within the registered and approved areas.
Parameters
| Product Name | Kresoxim-methyl 50% WDG |
| Active ingredient | Kresoxim-methyl |
| Active ingredient content | 50.0% |
| Formulation | WDG, Water Dispersible Granule |
| Product Category | Fungicide |
| Dinotefuran CAS No. | 143390-89-0 |
| Main Uses | Broad-spectrum strobilurin fungicide with protective, curative, and eradicative action for control of a wide range of fungal diseases in agricultural and horticultural crops |
| Targeted Pests and Diseases | Major diseases: Powdery mildew (Erysiphe spp., Podosphaera leucotricha, Sphaerotheca fuliginea), apple scab (Venturia inaequalis), pear scab (Venturia pirina), leaf spot/alternaria leaf blotch (Alternaria mali), rust (Puccinia spp., Gymnosporangium spp.), early blight (Alternaria solani), Fusarium head blight (Fusarium graminearum), rice sheath blight (Rhizoctonia solani), rice blast (Magnaporthe oryzae), grape downy mildew (Plasmopara viticola), grape black rot (Guignardia bidwellii), anthracnose (Colletotrichum spp.), and other fungal diseases caused by Ascomycetes, Basidiomycetes, and Deuteromycetes. |
| Minimum Order Quantity | 1000kg |
| Bulk packing | 25kg, 10kg, 5kg |
| Small packing | 1kg, 500g, 250g, 200g, 100g, 50g, 10g bag, 10kg/carton |
| Documentation Support | ICAMA, COA, MSDS, TDS, Product Specifications，Packaging Information，etc. |
| Sample Service | Free for 200g |
| Place of origin | China |
| Supplier | Agrogreat |
| Customized Services | bottle,label,bag, carton, logo Brand Customized |
Key Functions
Kresoxim-methyl is a synthetic strobilurin fungicide belonging to the QoI (Quinone outside Inhibitor) class, FRAC Group 11. It was developed by BASF and first commercialized in 1996 under the trade name Stroby. Kresoxim-methyl is a benzyl carbamate analogue of the naturally occurring strobilurin A, a fungicidal metabolite produced by the wood-rotting basidiomycete fungus Strobilurus tenacellus. The natural strobilurin A served as a lead structure, and chemical modification yielded kresoxim-methyl with improved photostability, systemic movement, and fungicidal potency. Kresoxim-methyl binds with high affinity (Kd = 70 nM) to a single binding site on the cytochrome bc₁complex (Complex III) in the mitochondrial inner membrane. By occupying the ubiquinol oxidation site (Qo site), it blocks electron transfer from ubiquinol to cytochrome c₁, disrupting the mitochondrial electron transport chain and preventing ATP synthesis. Without ATP, the fungal pathogen cannot maintain essential metabolic processes — spore germination is inhibited, mycelial growth ceases, and spore production is blocked, ultimately leading to fungal death. This mechanism is classified as FRAC Group 11 (QoI fungicides — Strobilurins).
Kresoxim-methyl exhibits a unique combination of biological properties. It has strong affinity for the waxy plant surface and adheres firmly to leaf surfaces under various weather conditions, providing excellent rainfastness. The active ingredient diffuses laterally over the leaf surface and moves translaminarily from one leaf surface to the other, ensuring coverage of both sides of treated leaves. It also exhibits a vapour-phase effect, with the active ingredient redistributing in the air within the plant canopy, providing additional protection to untreated plant parts. Kresoxim-methyl is classified as a semi-systemic fungicide — it is absorbed by the waxy epicuticular layer of leaves and fruits, providing a continuous protective "coat" on treated surfaces, but has limited acropetal translocation compared to other strobilurins such as azoxystrobin. It provides protective, curative, and eradicative (kick-back) activity, making it effective both before and after infection has occurred.
Beyond its direct fungicidal activity, kresoxim-methyl has been shown to exert beneficial physiological effects on treated plants — a phenomenon known as the "greening effect." Studies on wheat have demonstrated that kresoxim-methyl shifts the plant hormone balance in favour of cytokinins (particularly dihydrozeatin riboside-type) and away from ethylene and its biosynthetic precursor ACC, by inhibiting ACC synthase induction. This hormonal shift delays leaf senescence, extends the photosynthetic period, increases CO₂assimilation, and promotes dry matter accumulation and yield. The CO₂compensation point is shifted in favour of photosynthesis over respiration, contributing to improved crop vigour and productivity even in the absence of disease pressure. Kresoxim-methyl is highly effective against Ascomycetes (powdery mildews, apple scab, Fusarium head blight), Basidiomycetes (rusts), and Deuteromycetes (Alternaria leaf spot, anthracnose), but has no activity against Oomycetes (Phytophthora, Pythium, Plasmopara) — a key distinction from the related strobilurin azoxystrobin. Because QoI fungicides act on a single specific target site, repeated sole use can rapidly select for resistant pathogen populations carrying the G143A mutation in the cytochrome b gene; therefore, kresoxim-methyl must always be used in rotation or tank-mix with fungicides from different FRAC groups as part of a Fungicide Resistance Management (FRM) program.
Key Benefits
1. Broad-spectrum disease control: Highly effective against a wide range of fungal diseases including powdery mildew, apple scab, pear scab, leaf spot, rust, early blight, Fusarium head blight, rice sheath blight, rice blast, grape downy mildew, grape black rot, and anthracnose, providing comprehensive protection across diverse crop systems.
2. Triple mode of action — protective, curative, and eradicative: Inhibits spore germination on the plant surface (protective), penetrates leaf tissues to control established infections (curative), and eliminates existing fungal colonies (eradicative/kick-back), making it effective both before and after disease onset.
3. Wide range of application: Suitable for cucumber, tomato, pepper, wheat, rice, apple, pear, strawberry, grape, banana, watermelon, melon, tobacco, ornamental plants, and medicinal herbs such as Dendrobium officinale and Salvia miltiorrhiza.
4. Unique QoI mode of action — FRAC Group 11: Inhibits mitochondrial respiration at the cytochrome bc₁complex (Complex III), with no cross-resistance to fungicides from other FRAC groups. Suitable for rotation and tank-mix programs in Fungicide Resistance Management (FRM) strategies.
5. Excellent rainfastness and residual activity: Strong affinity for the waxy plant surface ensures firm adhesion under various weather conditions, with lateral diffusion and translaminar movement providing extended protection and reduced need for frequent re-application.
6. Vapour-phase redistribution: The active ingredient redistributes in the air within the plant canopy, providing additional coverage to untreated plant parts and hard-to-reach areas, enhancing overall disease control.
7. "Greening effect" — plant physiological benefits: Beyond fungicidal activity, kresoxim-methyl shifts plant hormone balance toward cytokinins and away from ethylene, delaying leaf senescence, extending the photosynthetic period, increasing CO₂assimilation, and promoting dry matter accumulation and yield even under low disease pressure.
8. Water-dispersible granule (WDG) formulation: Disperses readily in water without dust problems associated with wettable powders, easy to measure and mix, with good stability, storage safety, and user convenience. Suitable for conventional foliar spray application.
9. Compatible with Integrated Pest Management (IPM) programs: When used in rotation with fungicides from different FRAC groups and as part of an integrated disease management strategy, this product provides a reliable tool for sustainable crop protection.
●The actual applicable crops and control spectrum shall strictly comply with the provisions of the locally registered label.
●The actual use instructions, crop range, diseases, application rates, and conditions of use are subject to the label.
●Do not apply to crops or diseases not specified on the local label.
| Applicable Crops | Targeted Diseases/Pests |
| Cucumber | Powdery mildew (Sphaerotheca fuliginea) |
| Apple / Pear | Apple scab (Venturia inaequalis), pear scab (Venturia pirina), leaf spot (Alternaria mali), powdery mildew (Podosphaera leucotricha) |
| Strawberry | Powdery mildew (Erysiphe spp.) |
| Grape | Downy mildew (Plasmopara viticola), black rot (Guignardia bidwellii), powdery mildew |
| Wheat | Fusarium head blight (Fusarium graminearum), rust (Puccinia spp.), powdery mildew |
| Rice | Sheath blight (Rhizoctonia solani), rice blast (Magnaporthe oryzae) |
