Photosystem II Inhibiting Metribuzin 70% Wdg Herbicide for Tomato and Cereal Resistant Weed Management

Product Description

Product Description

METRIBUZIN 70% WDG
 
Metribuzin 70% WDG is a premium water-dispersible granule herbicide engineered for effective pre-emergent and early post-emergent weed control. 
 
Featuring 70% active ingredient concentration, this triazinone-class herbicide delivers powerful Photosystem II inhibition to eliminate stubborn broadleaf weeds and annual grasses in major crops, including soybeans, potatoes, tomatoes, and cereals. 
 
Its unique mode of action disrupts photosynthesis by binding to the D1 protein in chloroplasts, ensuring rapid and thorough weed destruction. 
 
With excellent solubility in organic solvents, superior crop selectivity, and a shelf life of 2+ years, Metribuzin 70% WDG is the trusted choice for farmers seeking reliable, long-lasting weed management and maximized yield potential. Also known as Sencor, Lexone, or Dossier.

Specification

Category	Herbicide
Active Ingredient	Metribuzin 70% (w/w)
Appearance	Off-white granules
CAS Number	21087-64-9
EINECS Number	244-209-7
Molecular Formula	C8H14N4OS
Molecular Weight	214.29 g/mol
Density	1.31 g/cm³ (at 20 °C)
Chemical Name	4-amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5(4H)-one
Flash Point	>100 °C (closed cup)
Solubility	Slightly soluble in water; soluble in most organic solvents
Shelf Life	Typically 2 years or more under proper storage conditions
Other Names	Sencor, Lexone, Dossier
Target Object	Broadleaf weeds and some annual grasses in soybeans, potatoes, tomatoes, and cereals.
Mode of Action	Photosystem II inhibitor (triazinone herbicide). It disrupts photosynthesis by binding to the D1 protein in the chloroplast, leading to the destruction of plant tissues.
Synergistic Blending Guide	Often blended with herbicides like pendimethalin, metolachlor, or trifluralin to enhance the spectrum of weed control.
Core Principle of Blending	To combine pre-emergent residual control with early post-emergent activity, effectively managing both grass and broadleaf weeds while mitigating resistance development.

Product Form	Concentration	Application Method	Target Use	Recommended Mix Partners
Emulsifiable Concentrate	Metribuzin6.5%+Ace+tochlor55.3%+2,4-D-ethylhexyl20.2% EC	Soil Spraying	Corn field broad-spectrum weeds	Atrazine 50% SC (1:1), Mesotrione 40% SC (1:0.2)
Emulsifiable Concentrate	Metribuzin5%+2,4-D-ethylhexyl17%+Metolachlor60% EC,Metribuzin15%+Ace+tochlor60% EC	Soil Spraying	Soybean & corn field weeds	Pendimethalin 33% EC (1:0.8)
Emulsifiable Concentrate	Metribuzin12%+Metolachlor60% EC,Metribuzin8%+Ace/tochlor56% +MCPA-isooctyl18% EC	Soil Spraying	Soybean field annual weeds	Trifluralin 48% EC (1:1), Clomazone 36% EC (1:0.4)
Suspension Concentrate	Metribuzin 480g/l SC,Metribuzin 48% SC	Soil/Post-emergence Spray	Soybean & potato broadleaf weeds	Pendimethalin 33% EC (1:1), Chlorimuron-ethyl 25% WP (1:0.08)
Suspension Concentrate	Metribuzin6%+Cypyrafluone4%+Isoproturon10% SC	Soil Spraying	Wheat field broadleaf weeds	Tribenuron-methyl 75% WG (1:0.1), Florasulam 5% SC (1:0.08)
Wettable Powder	Metribuzin 70% WP,Metribuzin10%+Ace/tochlor14% WP	Soil Spraying	Tomato & sugarcane weeds	Oxyfluorfen 24% EC (1:0.5), Napropamide 50% WP (1:0.8)
Water-Dispersible Granule	Metribuzin 75% WDG,Metribuzin40%+Pyroxasulfone40% WDG	Soil Spraying	Soybean field resistant weeds	Flumioxazin 51% WDG (1:0.3), Sulfentrazone 40% SC (1:0.25)
Water-Dispersible Granule	Metribuzin 70% + Rimsulfuron 5% WDG	Post-emergence Spray	Corn field broadleaf weeds	Nicosulfuron 40% SC (1:0.2), Tembotrione 42% SC (1:0.15)
Oil Dispersion	Metribuzin18%+Quizalofop-P-ethyl4%+Rimsulfuron1.2% OD,Metribuzin10%+Clethodim12%+Rimsulfuron3% OD	Post-emergence Spray	Soybean field mixed weeds	Fomesafen 25% SL (1:0.6), Lactofen 24% EC (1:0.4)
Oil Dispersion	Metribuzin18%+Haloxyfop-P-methyl5%+Rimsulfuron1% OD,Metribuzin3%+Nicosulfuron3% OD	Post-emergence Spray	Soybean field grass & broadleaf	Clethodim 12% EC (1:0.3), Bentazone 48% SL (1:0.8)
Microemulsion	Metribuzin 26% +Quizalofop-P-ethyl 5% ME	Post-emergence Spray	Soybean field annual weeds	Imazethapyr 10% SL (1:0.5), Acifluorfen 40% SL (1:0.4)
Technical Material	Metribuzin 95% TC,Metribuzin 97% TC	For Formulation Processing	Industrial Raw Material	Pendimethalin 95% TC (1:1), Rimsulfuron 95% TC (1:0.05)

Detailed Pictures

HIGH-POTENCY FORMULATION 
 
Contains 70% metribuzin active ingredient in water-dispersible granule form, ensuring consistent dispersion and maximum efficacy with every application.

DUAL-TIMING WEED CONTROL 
 
Provides both pre-emergent and early post-emergent herbicidal activity, offering flexible application windows for comprehensive weed management.

PHOTOSYSTEM II INHIBITOR TECHNOLOGY 
 
Disrupts weed photosynthesis by targeting the D1 protein in chloroplasts, leading to rapid tissue destruction and effective elimination of target weeds.

BROAD-SPECTRUM WEED SUPPRESSION 
 
Controls a wide range of broadleaf weeds and select annual grasses, reducing competition and protecting crop health throughout the growing season.

Application Scenarios

FAQ

Q1: What is Metribuzin 70% WDG and how does it work?
A: Metribuzin 70% WDG is a selective, systemic herbicide in a water-dispersible granule formulation. It works by inhibiting photosynthesis (both pre- and post-emergence), controlling susceptible weeds as they germinate or through foliar contact and uptake.

Q2: Which crops and weeds is Metribuzin 70% WDG primarily used for?
A: It is a key herbicide in soybean, potato, tomato, and sugarcane production. It provides effective control of a broad spectrum of annual broadleaf weeds (like lambsquarters, pigweed, nightshade) and some grasses.

Q3: What are the most critical factors for successful and safe application?
A: Success depends entirely on three factors:

Soil Type: It is safer on medium to heavy-textured soils (loams, clays) with adequate organic matter. Injury risk is high on sandy soils or soils with low organic matter.
pH Level: Persistence and activity increase in high pH soils (alkaline), raising the risk of carryover damage to following crops.
Application Timing: Can be applied pre-plant incorporated, pre-emergence, or early post-emergence. Post-emergence applications must be made to very small, actively growing weeds.

Q4: What is the advantage of the WDG formulation?
A: The Water-Dispersible Granule (WDG) formulation is dust-free, easy to measure and handle, and disperses rapidly in the spray tank. It minimizes exposure risk during handling compared to powders.

Q5: What are the key precautions regarding crop safety and rotation?
A:Crop Varietal Tolerance: Within tolerant crops (like soybeans and potatoes), significant differences exist between varieties. Always check varietal tolerance before use.
Carryover Risk: Due to its soil persistence, strict adherence to labeled rotation intervals is crucial before planting sensitive follow-on crops (like small grains or certain vegetables).