Herbicides Suppliers, Saudi Arabia
Herbicides in Saudi Arabia are the weed control products used on wheat, barley and alfalfa under centre pivots, in date and citrus orchards, vegetable farms, landscapes and non-crop sites such as roads, plants and pipelines. This page sets out the main herbicide groups, why hot, dusty conditions and saline well water reduce control, the registration rules under the GCC Pesticides Law as of 2026, and how to choose a registered Saudi supplier.
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Which herbicides do Saudi farms and sites use?
Saudi buyers use selective herbicides to take grass and broadleaf weeds out of cereals, fodder and vegetables, non-selective herbicides to clear ground and orchard floors, and residual products to keep industrial and roadside areas bare. Herbicides are the weed control part of agri-inputs in Saudi Arabia, and the GCC Pesticides Law treats them as pesticides.
| Herbicide group | Saudi application | Buying check |
|---|---|---|
| Selective grass herbicides for cereals | Wild oats and grass weeds in wheat and barley under pivots | Crop variety safety, growth stage window, HRAC group |
| Selective broadleaf herbicides | Broadleaf weeds in cereals, fodder grasses and turf | Rotation restrictions for following crops, volatility in heat |
| Selective products for alfalfa and vegetables | Weeds in alfalfa stands, potatoes, onions and tomatoes | Label crop list, pre-harvest interval, effect on the next crop |
| Non-selective systemic (for example glyphosate) | Pre-planting burn-down, date and citrus orchard floors, fence lines | Spray water quality, weed size, rain-free and re-entry times |
| Pre-emergence residuals | Orchards, landscape beds, roadside shoulders | Sandy soil leaching risk, irrigation to activate, persistence |
| Total vegetation control | Industrial plants, tank farms, substations, pipeline right of way | Registration for non-crop use, effect on nearby trees and groundwater |
Herbicides are usually bought with insecticides and fungicides from pesticide and insecticide suppliers in Saudi Arabia, and applied with boom, knapsack and mist sprayers. Clean seed is the first weed control step, so source certified lots from seed and seedling suppliers rather than farm-saved seed carrying weed seeds.
How do Saudi heat, dust and well water affect herbicides?
In Saudi Arabia, the factors that most often reduce herbicide control are dust on weed leaves, minerals in saline well water used for spraying, and weeds hardened by heat and drought. Correct timing and water conditioning address most of them.
- Spray water. Glyphosate and some other weak acid herbicides bind to calcium, magnesium, sodium and iron in the tank. Research summarised by the University of Wisconsin cites noticeable glyphosate antagonism above about 150 ppm calcium or 300 ppm sodium, and recommends dissolving ammonium sulphate in the water before adding the herbicide. Saline wells in Qassim, Al Ahsa or Wadi Al Dawasir can exceed those levels, so test the water.
- Dust. Dust settled on leaves, or raised by tractors and pivot towers on sandy tracks, can tie up glyphosate before it enters the leaf. Spray after a pivot pass has washed the canopy and drive slowly on dusty ground.
- Stressed weeds. Weeds under drought or heat stress build a thicker cuticle and absorb less herbicide. Treat young weeds that are actively growing, and avoid spraying in the hottest part of the day.
- Resistance. Repeating one mode of action in continuous wheat or alfalfa selects resistant weeds. The HRAC global classification gives each mode of action a group number, so plan rotations by group, not by brand name.
- Storage and transport. Long hauls from Jeddah or Dammam in summer and hot farm stores shorten shelf life. Check manufacture dates and keep herbicides in a shaded, locked, ventilated store.
Which registrations apply to herbicides in Saudi Arabia?
As of 2026, herbicides in Saudi Arabia fall under the GCC Pesticides Law, which prohibits importing, manufacturing or trading any pesticide without a licence from the competent authority, and requires each product to be registered. MEWA is the competent authority for agricultural pesticides; SFDA covers public health pesticides.
| Requirement | Applies to | Authority or reference |
|---|---|---|
| Licence to import, manufacture or trade pesticides | Importers, formulators, traders | MEWA, GCC Pesticides Law Article 4 |
| Product registration with a registration number and certificate | Each herbicide, including proof of registration in the country of origin | MEWA registration committee |
| Banned and restricted pesticide lists | Active ingredients and products | Minister of Environment, Water and Agriculture decisions |
| No relabelling, repacking or advertising without approval | Distributors and retailers | GCC Pesticides Law Article 10 |
| Inspection of imports, stores and shops | Ports, customs points and farm stores | MEWA inspectors |
| Public health pesticide route | Products for vector and public health pest control | SFDA |
MEWA enforces the law: in 2019 it fined 19 companies and seized illicit, expired and unregistered pesticides in twelve cities, and the law's penalties then included fines up to SAR 200,000. Gulf News reported in December 2025 that a draft update would raise penalties for banned or counterfeit pesticides to up to five years in prison and SAR 10 million in fines; that was a draft, so check its status with MEWA.
How do you choose a herbicide supplier in Saudi Arabia?
Pick a supplier that holds the MEWA registration for the product and the crop you need, can deliver to your region during the spraying window, and gives agronomic advice. Unregistered or repacked herbicide is a legal and crop risk, whatever the price.
- Registration and chain. Ask for the MEWA registration certificate and, for distributors, the holder's appointment letter. Original sealed packs with Arabic labels only.
- Regional reach. Pivot farms in Al Jouf, Hail, Tabuk and Qassim need stock close by during the short post-emergence windows in cereals.
- Agronomy. Look for advice on resistance rotation, water conditioning, crop rotation restrictions and sprayer calibration.
- Records. Farms supplying exporters or large retailers need spray records with product, batch and pre-harvest interval, so buy from suppliers that document batches.
What affects herbicide price and lead time in Saudi Arabia?
Herbicide prices in Saudi Arabia depend on the active ingredient, original or generic product, concentration and pack size, and demand peaks around cereal and fodder planting in autumn and winter. Registered generics of common actives are usually stocked; newer selectives may come in by order. Compare cost per treated hectare at the label rate, and post your requirement to reach registered Saudi herbicide suppliers.
Sources
- FAOLEX: Pesticides Act of the Cooperation Council for the Arab States of the Gulf (English text)
- SFDA: Pesticides Law and its Implementing Regulation in the GCC
- MEWA: Fines on 19 companies for violating the GCC Pesticides Law (2019)
- Gulf News: Saudi Arabia proposes tougher penalties for banned pesticides (December 2025)
- University of Wisconsin: Factors affecting glyphosate performance (Boerboom)
- HRAC: Global herbicide mode of action classification