{"id":1349,"date":"2026-05-18T19:55:46","date_gmt":"2026-05-18T11:55:46","guid":{"rendered":"https:\/\/www.fulltsing.cn\/product\/%e5%90%a1%e5%98%a7%e4%ba%8c%e6%b0%af%e5%96%b9\/"},"modified":"2026-05-21T13:24:44","modified_gmt":"2026-05-21T05:24:44","slug":"%e5%90%a1%e5%98%a7%e4%ba%8c%e6%b0%af%e5%96%b9","status":"publish","type":"product","link":"https:\/\/www.fulltsing.cn\/en\/product\/%e5%90%a1%e5%98%a7%e4%ba%8c%e6%b0%af%e5%96%b9\/","title":{"rendered":"Pyrimethamine* dichloroquine 50% wettable powder"},"content":{"rendered":"

Pyrimidine\u00b7Dichloroquin 50% Wettable Powder<\/strong><\/h2>\n

Pyrazosulfuron-ethyl + Quinclorac 50% WP<\/strong><\/h3>\n
Pesticide Category:<\/strong> Herbicides Dosage form:<\/strong> Wettable Powder (WP) | Toxicity:<\/strong> lower toxicity
\nActive ingredients:<\/strong> Pyrimidylsulfuron + Dichloroquinoline Acid | Total active ingredient content:<\/strong> 50%<\/div>\n
\n

I. Product Profile<\/h3>\n
Pyrimidine\u00b7Dichloroquin 50% Wettable Powder is aBinary Formulation Herbicide Specifically Designed for Rice Fields<\/strong>, bySulfonylurea Herbicide for Broadleaf Cyperus (Pyrimidylsulfuron)<\/strong>andQuinoline carboxylic acid-based weed herbicide (dichloroquinoline carboxylic acid)<\/strong>Scientifically formulated. This product offers dual efficacy against barnyard grass and broadleaf weeds, as well as sedges, and provides excellent control against the major weed types found in rice fields\u2014barnyard grass, broadleaf weeds, and sedges\u2014making it a highly effective solution for integrated weed management in rice fields.<\/p>\n
<\/div>\n<\/div>\n
\n

II. Mechanisms of action of active ingredients<\/h3>\n

Mechanism of dual-target synergy<\/strong><\/h4>\n
\n
\n
forms<\/span><\/p>\n
<\/div>\n
<\/div>\n<\/div>\n<\/header>\n
\n\n\n\n\n\n\n
Ingredients<\/th>\nFunction Category<\/th>\nmechanism of action<\/th>\nMechanism of action<\/th>\n<\/tr>\n<\/thead>\n
Pyrazosulfuron<\/strong><\/td>\nHRAC Class B \/ WSSA Class 2<\/td>\nAcetyl-L-lactate synthase (ALS) inhibitors<\/strong>, inhibiting the synthesis of branched-chain amino acids<\/td>\nSystemic; absorbed primarily through the root system<\/td>\n<\/tr>\n
dichloroquinolinic acid<\/strong><\/td>\nHRAC Class O \/ WSSA Class 19<\/td>\nSynthetic hormone inhibitors<\/strong>, disrupting auxin metabolism<\/td>\nSystemic; absorbed by roots and leaves and transported upward<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

The Principle of Synergy<\/strong><\/h4>\n
    \n
  1. \n
    Broadleaf Cyperus Herbicide (Pyrimidylsulfuron):<\/strong> It is primarily absorbed through the root system, rapidly translocates within the weed plant, inhibits ALS enzyme activity, and blocks the synthesis of branched-chain amino acids, causing the weed to gradually die. It provides excellent control against annual and perennial broadleaf weeds and Cyperaceae weeds, including common sedge, water sedge, water arrowhead, duckweed, water celery, water purslane, wild arrowhead, water milfoil, duckweed, and water hyssop.<\/p>\n
    <\/div>\n<\/div>\n<\/li>\n
  2. \n
    Weed Killer (Dichloroquinoline Acid):<\/strong> It is rapidly absorbed by the seeds, roots, and leaves of emerging weeds, primarily through the roots. After absorption, it is transported within the plant to the apical meristems and stems, where it primarily inhibits the growth points of barnyard grass, ultimately causing the leaves to droop, wilt, and die. It is highly effective against barnyard grass (Oryza sativa) and common barnyard grass (Echinochloa crus-galli) in the 1\u20137-leaf stage.<\/p>\n
    <\/div>\n<\/div>\n<\/li>\n
  3. \n
    Synergy:<\/strong> Pyrimidylsulfuron compensates for dichloroquinoline acid\u2019s poor efficacy against broadleaf weeds and sedge weeds; Dichloroquinoline acid compensates for pyrimidylsulfuron\u2019s limited effectiveness against barnyard grass and Echinochloa crus-galli, thereby achieving complete control of grass, broadleaf, and sedge weeds in rice fields.<\/div>\n<\/li>\n<\/ol>\n
    \n

    III. Product characteristics<\/h3>\n

    \u2705\u00a0Six Core Advantages<\/strong><\/h4>\n
    \n
    \n
    forms<\/span><\/p>\n
    <\/div>\n
    <\/div>\n<\/div>\n<\/header>\n
    \n\n\n\n\n\n\n\n\n\n\n
    Specificities<\/th>\nparticular<\/th>\n<\/tr>\n<\/thead>\n
    \ud83c\udfaf Hekuosha: Total Control\u2014One Product, Multiple Effects<\/strong><\/td>\nSimultaneously controls barnyard grass, broadleaf weeds, and sedge weeds, covering the major weeds found in rice fields<\/td>\n<\/tr>\n
    \ud83d\udd04 Systemic action, thoroughly eradicates<\/strong><\/td>\nBoth active ingredients are systemic, destroying weeds from within and preventing regrowth.<\/td>\n<\/tr>\n
    \u23f1\ufe0f Effective against mature barnyard grass<\/strong><\/td>\nDichloroquinoline acid is effective against barnyard grass at all growth stages from 1 to 7 leaves, and has a wide application window.<\/td>\n<\/tr>\n
    \ud83d\udee1\ufe0f Safe for rice, highly selective<\/strong><\/td>\nIt is safe for rice at the recommended dosage and does not affect tillering or yield.<\/td>\n<\/tr>\n
    \ud83d\udca7 Flexible and versatile<\/strong><\/td>\nCan be sprayed or mixed with soil and broadcast; suitable for various cultivation methods, including transplanting and direct seeding<\/td>\n<\/tr>\n
    \ud83c\udf3e Long-lasting, one application is all it takes<\/strong><\/td>\nA single application of herbicide effectively controls weeds throughout the entire growth cycle of rice<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    \ud83c\udfaf\u00a0Preventing Objects<\/strong><\/h4>\n
    Primary prevention and eradication:<\/strong> Barnyard grass (1\u20137-leaf stage), water pennywort, heterophyllous sedge, water sedge, water caltrop, duckweed, water celery, jointed water plantain, wild arrowhead, water milfoil, duckweed, water-snakeweed, water dragon, water-melon-skin grass, bitter grass, and other annual and some perennial weeds.<\/p>\n
    <\/div>\n<\/div>\n
    Suitable crops:<\/strong> Rice transplanted fields, direct-seeded rice fields, and rice fields with scattered seedlings.<\/div>\n
    \n

    IV. Usage and dosage<\/h3>\n

    \ud83d\udccb\u00a0Rice field use program<\/strong><\/h4>\n
    \n
    \n
    forms<\/span><\/p>\n
    <\/div>\n
    <\/div>\n<\/div>\n<\/header>\n
    \n\n\n\n\n\n\n\n
    Crop type<\/th>\nApplication period<\/th>\nDosage (formulated dose\/acre)<\/th>\nwater consumption<\/th>\nMode of application<\/th>\n<\/tr>\n<\/thead>\n
    Rice transplanting field<\/strong><\/td>\n7\u201320 days after transplanting, when barnyard grass is in the 1\u20137-leaf stage<\/td>\n40\u201360 grams per mu<\/strong><\/td>\n30-40 kg\/mu<\/td>\nFoliar spray or broadcast application mixed with soil<\/td>\n<\/tr>\n
    Rice direct seeding field<\/strong><\/td>\nAfter the 2.5-leaf stage of the seedlings<\/td>\n40\u201360 grams per mu<\/strong><\/td>\n30-40 kg\/mu<\/td>\nFoliar spray or broadcast application mixed with soil<\/td>\n<\/tr>\n
    Rice Fields with Transplanted Seedlings<\/strong><\/td>\n7\u201310 days after transplanting<\/td>\n40\u201350 grams per mu<\/strong><\/td>\n30-40 kg\/mu<\/td>\nMix with soil and broadcast<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n
    Active ingredient dosage:<\/strong> The recommended application rate of pyrimidylsulfuron per mu is 2\u20134 grams per mu<\/strong>, the dosage of the active ingredient in dichloroquinoline acid per mu is 20\u201330 grams per mu<\/strong>\u3002<\/p>\n
    <\/div>\n<\/div>\n<\/blockquote>\n
    \n

    V. Guidance for use<\/h3>\n

    \ud83d\udd27\u00a0Application Points<\/strong><\/h4>\n
    \n
    \n
    forms<\/span><\/p>\n
    <\/div>\n
    <\/div>\n<\/div>\n<\/header>\n
    \n\n\n\n\n\n\n\n\n\n
    move<\/th>\noperational specification<\/th>\n<\/tr>\n<\/thead>\n
    1. Determine the age of the grass<\/strong><\/td>\nThis product can be applied at any stage from 1 to 7 leaves on barnyard grass; however, the best control is achieved when applied at the 2- to 3-leaf stage.<\/td>\n<\/tr>\n
    2. Drainage and Application of Pesticides<\/strong><\/td>\nDrain the water from the field the day before applying the pesticide.<\/td>\n<\/tr>\n
    3. Spray evenly<\/strong><\/td>\nMix 30\u201340 kilograms of the product per mu with water and spray evenly to ensure complete coverage of the weeds.<\/td>\n<\/tr>\n
    4. Watering and Moisture Retention<\/strong><\/td>\nWater the plants 1\u20132 days after application, and maintain a water depth of 3\u20135 centimeters for 5\u20137 days.<\/td>\n<\/tr>\n
    5. Mix with soil and broadcast<\/strong><\/td>\nMix the formulation with 15\u201320 kilograms of fine soil per mu, and apply it evenly after the dew has dried.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    \u26a0\ufe0f\u00a0Key Considerations<\/strong><\/h4>\n
      \n
    1. \n
      \u23f0 Optimal application period:<\/strong> Weeds2\u20133-leaf stage<\/strong>This product is most effective when applied at this stage; it controls barnyard grass at the 1\u20137-leaf stage, but the application rate should be increased appropriately as the weeds grow older.<\/p>\n
      <\/div>\n<\/div>\n<\/li>\n
    2. \n
      \ud83d\udeab Pesticide damage to subsequent crops:<\/strong> High residue levels in the soil can easily cause phytotoxicity in subsequent crops; subsequent crops may include rice, corn, and sorghum, butSolanaceae (tobacco, potatoes, chili peppers, etc.), Apiaceae (carrots, celery), Amaranthaceae (spinach, sugar beet), Malvaceae, Cucurbitaceae (various melons and gourds), Fabaceae, Asteraceae, and Convolvulaceae crops are sensitive to this herbicide.<\/strong>\u3002<\/p>\n
      <\/div>\n<\/div>\n<\/li>\n
    3. \n
      \ud83d\udca7 Water Management:<\/strong> Drain the water the day before application and apply a uniform spray. Irrigate 1\u20132 days after application and maintain a water depth of 3\u20135 centimeters for 5\u20137 days.<\/div>\n<\/li>\n
    4. \n
      \ud83c\udf21\ufe0f Drift Risk:<\/strong> These crops (carrots, celery, cilantro, etc.) are quite sensitive to the Umbelliferae family; spray drift can easily cause phytotoxicity to these crops in adjacent fields, so spray drift should be avoided during application.<\/p>\n
      <\/div>\n<\/div>\n<\/li>\n
    5. \n
      \ud83d\udc1f Aquatic safety:<\/strong> This product is non-toxic to fish and bees, but apply it away from aquaculture areas; do not wash application equipment in water bodies.<\/p>\n
      <\/div>\n<\/div>\n<\/li>\n
    6. \n
      \ud83e\uddea Blending recommendations:<\/strong> can be used withChlorimuron-ethyl, benzosulfuron-methyl, diquat, cyhalofop-butyl<\/strong>...are used in combination to broaden the spectrum of weeds controlled.<\/p>\n
      <\/div>\n<\/div>\n<\/li>\n
    7. \n
      \ud83d\udd04 Resistance management:<\/strong> In some areas, dichlorquinoleic acid is frequently applied in excess, leading to cumulative herbicide damage in fields; it is recommended to rotate its use with herbicides that have different modes of action, and to apply it no more than once per season.<\/p>\n
      <\/div>\n<\/div>\n<\/li>\n
    8. \n
      \ud83d\udee1\ufe0f security:<\/strong> Wear protective clothing, gloves, and a mask when applying the pesticide; wash your hands and face immediately after application; pregnant and breastfeeding women should avoid contact.<\/div>\n<\/li>\n
    9. \n
      \ud83e\uddf9 Instrument cleaning:<\/strong> Thoroughly clean the sprayer after use to prevent residual pesticide from causing phytotoxicity to subsequent sensitive crops.<\/div>\n<\/li>\n
    10. \n
      \ud83d\udce6 Storage conditions:<\/strong> Store in a cool, dry, well-ventilated place, away from direct sunlight and high temperatures; keep away from sources of fire and out of the reach of children.<\/div>\n<\/li>\n<\/ol>\n
      \n

      Sixth, product specifications and packaging<\/h3>\n
      \n
      \n
      forms<\/span><\/p>\n
      <\/div>\n
      <\/div>\n<\/div>\n<\/header>\n
      \n\n\n\n\n\n\n\n\n\n\n
      sports event<\/th>\nparameters<\/th>\n<\/tr>\n<\/thead>\n
      Total active ingredient content<\/td>\n50% (pyrimethanil + dichloroquinoline acid)<\/td>\n<\/tr>\n
      exterior condition<\/td>\nGrayish-white to pale yellow powder<\/td>\n<\/tr>\n
      Suspension rate<\/td>\n\u226570%<\/td>\n<\/tr>\n
      Wetting time<\/td>\n\u2264120 seconds<\/td>\n<\/tr>\n
      Packaging specification<\/td>\n25g \u00d7 200 bags\/case, 50g \u00d7 100 bags\/case, 100g \u00d7 50 bags\/box, 500g \u00d7 20 bags\/box<\/td>\n<\/tr>\n
      date of use (on foodstuffs)<\/td>\n2 years<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
      \n
      \n
      Warm Tip:<\/strong> When applying this product, please follow the guidance of your local plant protection authorities and adjust the application plan as appropriate based on local weed communities, cultivation practices, and climatic conditions.<\/div>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"

      Pyrimidine* dichloroquine<\/p>","protected":false},"featured_media":1732,"comment_status":"open","ping_status":"closed","template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[34,41],"product_tag":[],"class_list":["post-1349","product","type-product","status-publish","has-post-thumbnail","product_cat-34","product_cat-plant_protection","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple","entry","content-bg","loop-entry"],"taxonomy_info":{"product_cat":[{"value":34,"label":"0713=\u9664\u8349\u5242"},{"value":41,"label":"\u690d\u7269\u4fdd\u62a4"}]},"featured_image_src_large":["https:\/\/img.fulltsing.cn\/Sftmedia\/071370W5\/071370W5_bag_1kg.png",1024,1024,true],"author_info":[],"comment_info":0,"_links":{"self":[{"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/product\/1349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/comments?post=1349"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/media\/1732"}],"wp:attachment":[{"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/media?parent=1349"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/product_brand?post=1349"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/product_cat?post=1349"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.fulltsing.cn\/en\/wp-json\/wp\/v2\/product_tag?post=1349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}