Australia's $3 billion cotton export industry faces a herbicide resistance crisis. WeedBot Pro delivers chemical-free precision weeding across QLD and NSW cotton regions.
Across the Darling Downs, Namoi Valley, and Macquarie Valley, glyphosate-resistant weeds are costing cotton growers millions. The old spray-and-pray approach has hit a wall.
Australian cotton is among the highest quality in the world, commanding premium prices on global markets. But a growing threat from herbicide-resistant weeds is squeezing margins and putting sustainable production at risk.
Three species dominate the resistance problem in cotton-growing regions: common fleabane (Conyza bonariensis), confirmed resistant to both glyphosate and paraquat across 72% of surveyed fields in the northern region; common sowthistle (Sonchus oleraceus), which has developed multiple resistance mechanisms making it almost impossible to control chemically; and barnyard grass (Echinochloa crus-galli), which thrives in irrigated cotton and has rapidly evolved resistance in the Namoi and Macquarie Valleys.
Current options are failing. Tank-mixing three or four herbicide modes of action drives input costs above $150/ha per application, and resistance inevitably follows. Hand-chipping crews, where available, cost $200-400 per hectare and are increasingly hard to source in regional areas. Letting weeds go to seed is not an option—cotton bales contaminated with weed seed face price penalties or outright rejection at gin.
Unlike cereals that form a dense canopy, cotton's open row structure gives weeds ample light and space between plants. The long growing season (October through March) means multiple weed germination flushes. And Bollgard III varieties, while excellent for pest management, do nothing for weed pressure. Growers need a new tool in the box.
Precision inter-row weeding without crop contact, chemical residue, or soil disturbance.
Computer vision trained on 40+ cotton weed species distinguishes fleabane, sowthistle, barnyard grass, and other targets from cotton seedlings with 98.5% accuracy—even at the cotyledon stage.
Each identified weed receives either laser ablation or mechanical micro-removal. The targeting system operates within 15mm accuracy, eliminating weeds in the inter-row zone without contacting cotton plants.
RTK GPS combined with LiDAR row-following lets WeedBot traverse cotton fields on standard 1-metre row spacing. The platform works day and night across both irrigated beds and dryland configurations.
Every pass generates field-level weed maps showing species distribution, density hotspots, and resistance risk zones. Export data directly to your agronomist or farm management platform.
WeedBot integrates with your existing Bollgard III insect resistance management plan. Robot operations complement refuge crop areas and don't interfere with beneficial insect monitoring.
No chemical drift onto neighbouring properties. No herbicide residue in lint or seed. No contamination penalties at the gin. Clean cotton for premium markets.
WeedBot Pro is not a one-pass solution. It works across the full cotton season for sustained weed suppression.
| Timing | Period | WeedBot Activity | Key Targets |
|---|---|---|---|
| Pre-Plant | Aug–Sep | Fallow clean-up: eliminate weed seedbank before planting | Fleabane rosettes, sowthistle, volunteer cereals |
| Early In-Crop | Oct–Nov | Inter-row weeding during cotton establishment | Barnyard grass, fleabane, bladder ketmia |
| Mid-Season | Dec–Jan | Targeted passes between canopy closure | Late-emerging barnyard grass, nutgrass |
| Pre-Harvest | Feb–Mar | Remove seed-bearing weeds before picking | All species—preventing seed set is critical |
| Post-Harvest Fallow | Apr–Jul | Winter fallow weed management, seedbank reduction | Winter annuals, fleabane, sowthistle |
WeedBot Pro is deployed across the major cotton-growing valleys of QLD and NSW.
Australia's largest cotton-growing region. High fleabane and sowthistle resistance pressure. Dryland and irrigated systems on black vertosol soils.
Concentrated irrigated cotton around Wee Waa and Narrabri. Barnyard grass resistance is acute in furrow-irrigated fields with heavy clay soils.
Premium irrigated cotton around Warren and Trangie. Mixed weed pressure with increasing fleabane and feathertop Rhodes grass concerns.
Yes. WeedBot Pro uses LiDAR and camera-based navigation to move between cotton rows without touching the crop canopy. It targets inter-row weeds and can operate in cotton from early establishment through to pre-harvest, provided row spacing is 1 metre or wider.
Unlike chemical solutions that resistant weeds can survive, WeedBot uses mechanical micro-targeting and laser-based elimination to destroy weeds physically. Resistance is irrelevant because the removal method is non-chemical. This is particularly effective against resistant fleabane, sowthistle, and barnyard grass throughout QLD and NSW cotton regions.
WeedBot operates in both irrigated and dryland cotton systems. For furrow-irrigated fields, the robot navigates along raised beds. For dryland cotton, it works across the full inter-row space. The AI vision system adjusts for different soil moisture conditions and weed growth patterns specific to each system.