కాత్యాయని Metaxel మెటాలాక్సిల్ 35% WS విత్తన శుద్ధి శిలీంధ్రనాశిని

Metalaxyl is a systemic fungicide used against oomycete diseases — downy mildew, white rust, damping-off and late blight. As a 35% WS seed treatment it protects maize, bajra, sorghum, sunflower and mustard seedlings from downy mildew from germination onwards.

Katyayani METAXEL Metalaxyl 35% WS costs ₹460 for 250 g and ₹1,566 for 1 kg on katyayanikrishidirect.com. The rate falls with pack size, down to about ₹375 per 250 g in the 10 kg pack.

Metalaxyl 35% WS is used as a slurry seed treatment against downy mildew: 600 g per 100 kg seed in mustard, sunflower and sorghum, and 700 g per 100 kg seed in maize. It protects seedlings during the vulnerable early growth stage.

For metalaxyl 35% WS the dose is not measured per litre — it is a seed treatment measured per kilogram of seed, at 6 to 7 g per kg. Foliar fungicides are typically 1.5 to 2.5 g per litre, but always follow the label.

Ridomil Gold MZ from Syngenta, Matco 8-64 from Indofil, Krixlaxyl 72 from Krishi Rasayan and Milor MZ from Albaugh all combine metalaxyl or metalaxyl-M with mancozeb. The pairing adds a multi-site protectant to a single-site systemic, which slows resistance.

Metalaxyl is itself the ISO common name for the active ingredient. It belongs to the phenylamide chemical class, FRAC Group 4, and its refined single-enantiomer version is called metalaxyl-M or mefenoxam. CAS number 57837-19-1.

Make a slurry of 6 to 7 g of metalaxyl 35% WS per kg of seed in a small amount of water, coat the seed evenly, dry it in shade, and sow the same day or the next. Do not use treated seed as food or feed.

Yes. Metalaxyl is fully systemic — it is absorbed by roots and seed and moves upward through the xylem into new growth. This is why seed treatment protects the seedling for weeks after germination, without any spray.

Metalaxyl 35% WS is sold in India as METAXEL by Katyayani Organics, Krixlaxy Power by Krishi Rasayan, Safexyl by Safex and Metsac, among others. Apron from Syngenta is the original international seed-treatment brand.

Yes, and it is agronomically sound. Copper oxychloride is a multi-site protectant and metalaxyl is a single-site systemic, so the pairing broadens control and slows resistance. Run a jar test first, and note that metalaxyl 35% WS itself is a seed-treatment formulation.

Metalaxyl is systemic, not contact. It moves inside the plant through the xylem and acts by inhibiting RNA polymerase in oomycetes. Because it is systemic, uneven seed coating or spray coverage matters less than with contact fungicides.

Metalaxyl is a racemic mixture of R and S forms, but only the R form is fungicidal. Metalaxyl-M, also called mefenoxam, is the enriched R-enantiomer, so it needs 20 to 30% less active ingredient. Both are FRAC Group 4 with complete cross-resistance.