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  • Metalaxyl is a colorless, odorless crystal.
  • Metalaxyl is a phenylamide fungicide with systemic function.
    Its chemical name is methyl N-(methoxyacetyl)-N-(2,6-xylyl)-DL-alaninate.
  • It can be used to control Pythium in a number of vegetable crops, and Phytophthora in peas.
  • It is the active ingredient in the seed treatment agent Apron XL LS.
  • Metalaxyl is sold in a combination with mancozeb, chlorothalonil, pentachloronitrobenzene, captan, and triadimefon.
  • Metalaxyl is a systemic, benzenoid fungicide used in mixtures as a foliar spray for tropical and subtropical crops, as a soil treatment for control of soil-borne pathogens, and as a seed treatment to control downy mildews.
  • A method for detecting low frequencies of resistance to metalaxyl was developed for phytophthora infestans.
  • Metalaxyl biodegradation was analyzed during 63 days by means of radiometric techniques to verify biomineralization and degradation product formation from the applied C-metalaxyl.
  • Although biomineralization and partial degradation were detected in both soils, enhanced degradation was verified only in the GH soil. Results proved that metalaxyl behaves differently in soils.
  • Metalaxyl may be used on many different food crops, including tobacco, ornamentals, conifer, and turf applications.
  • For agricultural seed treatment metalaxyl is applied with conventional slurry or mist seed treating equipment.
  • Metalaxyl is registered for use on over 100 agricultural crops (including more than 30 seed treatment uses).
  • Metalaxyl is also registered for ornamental and turf uses.
  • To control diseases caused by air-and soil-borne Peronosporales on a wide range of temperate, subtropical and tropical crops.
  • Metalaxyl was found to be practically nontoxic acutely and subacutely to avian species and to present no adverse effects to avian
    and mammalian populations.
  • Metalaxyl poses no hazard to endangered terrestrial or aquatic animal species or to plant species.
  • More than 90% of the total poundage of metalaxyl used domestically is used in the following ten crops/sites: tobacco, turf, potatoes,
    ornamentals, soybean (seed treatment), onions, citrus, cucurbits, tomatoes, and cotton.
  • A simple bioassay was developed for quantifying the fungicide metalaxyl in small samples of potato leaf tissue.
  • Four microorganisms, Pseudomonas sp., Aspergillus niger, Cladosporium herbarum and Penicilluim sp., were isolated from cucumber leaves previously treated with metalaxyl using enrichment technique. These isolates were evaluated for
    detoxification of metalaxyl at the recommended dose level in aquatic system.
  • It is important to find a novel technique that is effective in the remediation of metalaxyl in environment.
  • This is the first report of metalaxyl resistance following its use as a pea seed dressing for downy mildew control in Australia.
  • The proposed MRLs for metalaxyl in Canada are the same as corresponding tolerances established in the United States for root and tuber vegetables and leaves of root and tuber vegetables.
  • Metalaxyl is registered for use in New Zealand, and is available in a variety of formulations, many of which include other active  ingredients such as mancozeb, thiabendazole, cymoxanil and fludioxonil.
General Information
  • Metalaxyl General Information
  • Metalaxyl Chemical Fact Sheet


  • Enhanced degradation of metalaxyl in agricultural soils of São Paulo State, Brazil
  • Sensitivity of Phytophthora infestans populations to Metalaxyl in Mexico: Distribution and Dynamics
  • Estimation of Metalaxyl Resistance in phytophthora infestans
  • Pathotypes, Distribution, and Metalaxyl Sensitivity of Phytophthora sojae from North Dakota
  • Enhanced Degradation of metalaxyl in gley humic and dark red latosol
  • Metalaxyl resistance test
  • Metalaxyl Sensitivity Status of Downy Mildew Populations in Western Cape Vineyards
  • Metalaxyl resistance, mating type and pathogenicity of Phytophthora infestans in Uganda


  • Pathogenicity and metalaxyl sensitivity of Phytophthora infestans isolates obtained from garden huckleberry, potato and tomato in Cameroon
  • Ginger (Zingiber officinale) extract ameliorates metalaxyl fungicide induced nephrotoxicity in albino
  • Resistance to Mefenoxam and Metalaxyl Among Field Isolates of Phytophthora capsici Causing Phytophthora Blight of Bell Pepper
  • First Report of Metalaxyl resistance of grapevine downy mildew in Australia
  • Loss of Control of Avocado Root Rot by Metalaxyl
  • Control of downy mildew in sunflower with a new metalaxyl formulation apron xl-35 e.s.

Company Profiles

  • Company from China
  • Another company from China
  • Company from Spain
  • Company from Jiangsu, China


  • Consultancy from China
  • Consultancy from India
  • Consultancy from Jiangsu, China


  • Fungicidal Compositions comprising metalaxyl and fludioxonil
  • Fungicides containing cymoxanil and metalaxyl
  • Fungicidal mixtures comprising R-metalaxyl


  • A Metalaxyl Bioassay for Large Numbers of Small Foliar Samples
  • Dimet homorph and metalaxyl sensitivity in somatic hybrids
    of Phytophthora parusitica obtained by protoplast fusion
  • Evaluation of application techniques of four fungicides for the control of phytophthora root rot on avocado seedlings
  • Microbial detoxification of metalaxyl in aquatic system


  • Effect of Fosetyl-al and metalaxyl applications on foot rot incidence and growth of young citrus trees under field conditions
  • Apoptosis Related Protein Bax In Liver Of Metalaxyl Fungicide –Treated Mice: The Effect Of Antox
  • Systemic Remissive Property of Metalaxyl Against Downy Mildew in Pearl Millet
  • Soybean cultivar response to metalaxyl applied in furrow and as a seed treatment
  • Stem application of metalaxyl for the protection of Vitis vinifera L. (‘Riesling’) leaves and grapes against downy mildew (Plasmopara viticola)
  • Effect of Metalaxyl and Chlorpyrifos-Methyl Against Early Blight (Alternaria solani, Sor.) and Whitefly (Bemisia tabaci, Genn.) In Tomato and Eggplant
  • The use of metalaxyl and potassium phosphonate, mounds, and organic and plastic mulches, for the management of phytophthora root rot of papaya in far northern queensland
  • Comparative assessment of metalaxyl enhanced protection of pearl millet varieties in the control of downy mildew
  • Evaluation of Metalaxyl and captafol soil drenches, composted hardwood bark soil amendments, and graft union placement on control of apple collar rot

Material Safety Data Sheet

  • Metalaxyl MSDS
  • Country Metalaxyl 250 EC
  • Dyna-shield Metalaxyl 318 FS Fungicide
  • Dyna-shield Metalaxyl Fungicide
  • Metalaxyl 8% + Mancozeb 64%WP
  • Metalaxyl-M
  • Material safety data sheet for Metalaxyl
  • MSDS - Metalaxyl
  • Metalaxyl Technical – Agricultural Fungicide


  • Management of downy mildew disease of pea crops and its possible resistance to metalaxyl
  • metalaxyl (Apron, Ridomil, Subdue) Notice of Voluntarily Cancellation 4/96
  • Review report for the active substance Metalaxyl-M
  • FAO specifications for plant protection products - Metalaxyl
  • Metalaxyl
  • Metalaxyl report
  • Re-evaluation Decision
    Metalaxyl and
  • Pesticide Residues - Metalaxyl and metalaxyl-M


  • Metalaxyl
  • Information on Metalaxyl
  • Metalaxyl toxicology
  • Metalaxyl Toxicity, Uptake, and Distribution in Several Ornamental Plant Species
  • Reregistration Eligibility Decision (RED) - Metalaxyl


  • Metalaxyl suppliers
  • Suppliers of Metalaxyl
  • Selling leads of Metalaxyl
  • Suppliers and manufacturers of Metalaxyl

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