Herbicides range

Herbicides: clean fields from the start

Total or selective, pre- or post-emergence: control weeds when they compete most with your crops.

7 products
HRAC 9
HRAC 4
HRAC 2
HRAC 3
HRAC 15
HRAC 1

The basics

What is a herbicide?

A herbicide is a product that kills weeds or prevents them from emerging. Weeds compete with the crop for water, light and nutrients, and can harbour pests and diseases: left uncontrolled, they often cause heavy yield losses, especially in the first weeks of the crop.

Non-selective herbicides kill all vegetation (land clearing before planting, inter-row weed control), while selective herbicides remove weeds without harming the crop. Depending on timing, they act pre-emergence, before the weeds come up, or post-emergence, on weeds that have already emerged.

Benefits

Why choose our herbicides

A competition-free start

Crops establish in clean soil and make better use of water and fertiliser.

Less hand weeding

Well-planned chemical weed control cuts labour needs at peak periods.

Targeted solutions

Grasses, broadleaves or sedges: each product matches a specific weed flora and crop.

Catalogue

Our herbicides in Nigeria

Filter by crop to show the products suited to your situation.

Herbicide

BonGlypho 480 SL

Glyphosate (isopropylamine salt) 480 g/L · SL

Systemic non-selective herbicide for land preparation and plantation upkeep, including Imperata control.

Crops: Maize, Rice, Cotton, Oil palm, Rubber, Cocoa, Coffee, Cashew, Mango, Citrus, Banana & plantain, Pineapple
Targets: Annual grasses, Broadleaf weeds, Perennial grasses (Imperata), Sedges (nutsedges), Rice weeds
Pack sizes: 1 L, 5 L, 20 L

Technical sheet

BonGlypho 480 SL contains 480 g/L glyphosate isopropylamine salt, equivalent to 360 g/L glyphosate acid. Absorbed through the leaves, it moves down to roots, rhizomes and tubers, killing annual and perennial weeds. With no residual soil activity, sowing or planting can follow shortly after treatment.

Active ingredient: Glyphosate (isopropylamine salt) 480 g/L
Formulation: SL — Soluble concentrate
Mode of action: Systemic, non-selective, foliar
Mode-of-action group: HRAC 9
Rainfast period: 6 h
Pack sizes: 1 L, 5 L, 20 L

Key benefits

Kills the underground organs of perennials (Imperata, Bermuda grass)
Broad spectrum: grasses, broadleaves and sedges
Ideal for direct seeding and reduced tillage
Cost-effective upkeep of circles and inter-rows in plantations

Application rates
Crop	Targets	Rate	Timing
Maize	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata), Sedges (nutsedges)	2 – 6 L/ha	Before sowing, on emerged, actively growing weeds: 2–3 L/ha on annuals, 4–6 L/ha on perennials; wait 7 days before any tillage.Max. applications: 1Spray volume: 150 L/ha
Rice	Rice weeds, Annual grasses, Perennial grasses (Imperata), Sedges (nutsedges)	2 – 6 L/ha	Field preparation before ploughing, puddling or direct seeding, on actively growing weeds: 2–3 L/ha on annuals, up to 6 L/ha on perennials.Max. applications: 1Spray volume: 150 L/ha
Cotton	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata), Sedges (nutsedges)	2 – 6 L/ha	Before sowing, on emerged, actively growing weeds: 2–3 L/ha on annuals, 4–6 L/ha on perennials; wait 7 days before any tillage.Max. applications: 1Spray volume: 150 L/ha
Oil palm	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata)	2 – 6 L/ha	Directed spray on palm circles and inter-rows, keeping off the foliage: 2–3 L/ha on annuals, 4–6 L/ha on Imperata.Max. applications: 3Spray volume: 150 L/ha
Rubber	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata)	2 – 6 L/ha	Immature phase: weeding of planting lines with a directed spray, avoiding green bark and foliage; 2–6 L/ha depending on the weed flora.Max. applications: 3Spray volume: 150 L/ha
Cocoa	Annual grasses, Broadleaf weeds	2 – 4 L/ha	Young plantings: directed spray under a protective shield, never reaching foliage or green bark; 2–4 L/ha.Max. applications: 3Spray volume: 150 L/ha
Coffee	Annual grasses, Broadleaf weeds	2 – 4 L/ha	Young plantings: directed spray under a protective shield, never reaching foliage or green bark; 2–4 L/ha.Max. applications: 3Spray volume: 150 L/ha
Cashew	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata)	2 – 6 L/ha	Under-canopy weeding and firebreak upkeep at the end of the rainy season, on weeds that are still green; 2–6 L/ha depending on the weed flora.Max. applications: 2Spray volume: 150 L/ha
Mango	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata)	2 – 6 L/ha	Directed under-canopy weeding, keeping off foliage, fruit and young bark; 2–6 L/ha depending on the weed flora.Max. applications: 3Spray volume: 150 L/ha
Citrus	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata)	2 – 6 L/ha	Directed under-canopy weeding, keeping off foliage, fruit and young bark; 2–6 L/ha depending on the weed flora.Max. applications: 3Spray volume: 150 L/ha
Banana & plantain	Annual grasses, Broadleaf weeds	2 – 4 L/ha	Between rows and around mats with a directed spray, keeping off leaves and suckers; 2–4 L/ha.Max. applications: 3Spray volume: 150 L/ha
Pineapple	Annual grasses, Broadleaf weeds, Perennial grasses (Imperata), Sedges (nutsedges)	3 – 6 L/ha	Land preparation before planting (clearing fallow or crop residues); 3–6 L/ha depending on the weed flora.Max. applications: 1Spray volume: 150 L/ha

Always read the label before use.

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Herbicide

BONAMINE 720 SL

2,4-D (dimethylamine salt) 720 g/L · SL

Selective cereal herbicide against broadleaf weeds and sedges, cost-effective and fast-acting.

Crops: Maize, Rice, Sorghum, Millet, Oil palm
Targets: Broadleaf weeds, Sedges (nutsedges), Rice weeds
Pack sizes: 1 L (case of 10)

Technical sheet

BONAMINE 720 SL is a synthetic auxin based on 2,4-D dimethylamine salt (720 g/L). Taken up by leaves and roots, it disrupts the growth of susceptible broadleaf weeds and sedges, while cereals treated at the right stage are unaffected. Avoid any drift onto cotton, legumes and vegetables, which are highly sensitive.

Active ingredient: 2,4-D (dimethylamine salt) 720 g/L
Formulation: SL — Soluble concentrate
Mode of action: Systemic, selective in cereals (broadleaf herbicide)
Mode-of-action group: HRAC 4
Rainfast period: 4 h
Pack sizes: 1 L (case of 10)

Key benefits

Controls broadleaf weeds and sedges in cereals
Visible effect within 24–48 hours (stem twisting)
Amine formulation, less volatile than esters
Versatile: maize, rice, sorghum, millet and oil palm

Application rates
Crop	Targets	Rate	Timing
Maize	Broadleaf weeds, Sedges (nutsedges)	1 – 1.5 L/ha	Post-emergence, from the 3- to 6-leaf stage of maize, on young weeds; later, use a directed spray between rows.Max. applications: 1Spray volume: 200 L/ha
Rice	Rice weeds, Broadleaf weeds, Sedges (nutsedges)	1 – 1.5 L/ha	At full tillering, about 25–40 days after sowing or transplanting; do not spray once stem elongation has started.Max. applications: 1Spray volume: 200 L/ha
Sorghum	Broadleaf weeds	0.75 – 1 L/ha	From the 4- to 6-leaf stage, before stem elongation; later, directed spray only.Max. applications: 1Spray volume: 200 L/ha
Millet	Broadleaf weeds	0.75 – 1 L/ha	From the 4-leaf stage to early tillering, before stem elongation.Max. applications: 1Spray volume: 200 L/ha
Oil palm	Broadleaf weeds, Sedges (nutsedges)	1 – 2 L/ha	Inter-row upkeep with a directed spray against broadleaf weeds, keeping off palm foliage; avoid drift onto nearby sensitive crops.Max. applications: 2Spray volume: 200 L/ha

Always read the label before use.

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Herbicide

BONNICO 40 OD

Nicosulfuron 40 g/L · OD

Post-emergence maize herbicide against annual grasses and many broadleaf weeds, including itchgrass (Rottboellia).

Crops: Maize
Targets: Annual grasses, Broadleaf weeds
Pack sizes: 1 L (case of 10)

Technical sheet

BONNICO 40 OD combines nicosulfuron, an ALS-inhibiting sulfonylurea, with an oil-dispersion formulation that improves leaf uptake. Weeds stop growing within hours, then yellow and die within 2–3 weeks, while maize rapidly breaks down the active ingredient. Do not mix it with an organophosphate insecticide, and seek advice before treating sweet corn or seed-production lines.

Active ingredient: Nicosulfuron 40 g/L
Formulation: OD — Oil dispersion
Mode of action: Systemic, selective in maize, post-emergence
Mode-of-action group: HRAC 2
Rainfast period: 2 h
Pack sizes: 1 L (case of 10)

Key benefits

Effective on annual grasses, including itchgrass
Low active-ingredient load per hectare
OD formulation: fast uptake and good rainfastness
Wide application window, from 2 to 8 maize leaves

Application rates
Crop	Targets	Rate	Timing
Maize	Annual grasses, Broadleaf weeds	1 – 1.5 L/ha	Post-emergence, from the 2- to 8-leaf stage of maize, on grasses from 2 leaves to early tillering; 1.5 L/ha on itchgrass or heavy infestations.Max. applications: 1Spray volume: 200 L/ha

Always read the label before use.

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Herbicide

BonPendi 500 EC

Pendimethalin 500 g/L · EC

Broad-spectrum pre-emergence herbicide that prevents annual grasses and broadleaf weeds from establishing for several weeks.

Crops: Cotton, Maize, Rice, Groundnut, Cowpea, Soybean, Sesame, Cassava, Onion, Tomato
Targets: Annual grasses, Broadleaf weeds
Pack sizes: 1 L, 5 L, 20 L

Technical sheet

BonPendi 500 EC contains 500 g/L pendimethalin, a dinitroaniline that blocks cell division in weed seedlings as they emerge. Applied just after sowing on a moist, well-prepared seedbed, it forms a residual barrier lasting 6–8 weeks depending on soil and rainfall. It does not control weeds that have already emerged, so follow up with post-emergence weed control where needed.

Active ingredient: Pendimethalin 500 g/L
Formulation: EC — Emulsifiable concentrate
Mode of action: Pre-emergence, residual, inhibits seedling growth
Mode-of-action group: HRAC 3
Pack sizes: 1 L, 5 L, 20 L

Key benefits

One application covers the critical weed-competition period
Safe on many food, cash and vegetable crops
Reduces the number of hand weedings
Strongly bound to soil, with low leaching

Application rates
Crop	Targets	Rate	Timing
Cotton	Annual grasses, Broadleaf weeds	2.5 – 3 L/ha	Pre-emergence, within 48 hours of sowing, on a moist, fine, clod-free seedbed.Max. applications: 1Spray volume: 250 L/ha
Maize	Annual grasses, Broadleaf weeds	2.5 – 3 L/ha	Pre-emergence, just after sowing (within 3 days), before maize and weeds emerge.Max. applications: 1Spray volume: 250 L/ha
Rice	Annual grasses, Broadleaf weeds	2 – 3 L/ha	Upland or dry-seeded rice: pre-emergence, 1–3 days after sowing, with seed well covered; do not use in nurseries.Max. applications: 1Spray volume: 250 L/ha
Groundnut	Annual grasses, Broadleaf weeds	2 – 3 L/ha	Pre-emergence, just after sowing (within 2 days), on a moist, fine, clod-free seedbed.Max. applications: 1Spray volume: 250 L/ha
Cowpea	Annual grasses, Broadleaf weeds	2 – 3 L/ha	Pre-emergence, just after sowing (within 2 days), on a moist, fine, clod-free seedbed.Max. applications: 1Spray volume: 250 L/ha
Soybean	Annual grasses, Broadleaf weeds	2 – 3 L/ha	Pre-emergence, just after sowing (within 2 days), on a moist, fine, clod-free seedbed.Max. applications: 1Spray volume: 250 L/ha
Sesame	Annual grasses, Broadleaf weeds	1.5 – 2 L/ha	Pre-emergence, immediately after an even sowing, with seed covered by 2–3 cm of soil.Max. applications: 1Spray volume: 250 L/ha
Cassava	Annual grasses, Broadleaf weeds	2.5 – 3 L/ha	Just after planting the cuttings, before weeds emerge.Max. applications: 1Spray volume: 250 L/ha
Onion	Annual grasses, Broadleaf weeds	2 – 2.5 L/ha	Transplanted onion: on clean, moist soil in the days following transplanting.Max. applications: 1Spray volume: 250 L/ha
Tomato	Annual grasses, Broadleaf weeds	2 – 2.5 L/ha	Before transplanting on prepared soil, or just after on clean soil, keeping off the foliage.Max. applications: 1Spray volume: 250 L/ha

Always read the label before use.

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Herbicide

BonRiz 100 SC

Bispyribac-sodium 100 g/L · SC

Broad-spectrum post-emergence rice herbicide: barnyard grass (Echinochloa), sedges and broadleaf weeds in a single pass.

Crops: Rice
Targets: Rice weeds, Annual grasses, Sedges (nutsedges), Broadleaf weeds
Pack sizes: 100 mL, 250 mL, 1 L

Technical sheet

BonRiz 100 SC contains 100 g/L bispyribac-sodium, an ALS inhibitor taken up by leaves and roots. Suitable for irrigated, lowland and upland rice, direct-seeded or transplanted, it controls grasses, sedges and broadleaf weeds up to the 5-leaf stage. Re-flooding the field 1–3 days after spraying limits new weed flushes.

Active ingredient: Bispyribac-sodium 100 g/L
Formulation: SC — Suspension concentrate
Mode of action: Systemic, selective in rice, post-emergence
Mode-of-action group: HRAC 2
Rainfast period: 6 h
Pack sizes: 100 mL, 250 mL, 1 L

Key benefits

One pass against grasses, sedges and broadleaf weeds
Highly effective on Echinochloa up to 5 leaves
Very low rate: 20–30 g of active ingredient per hectare
Direct-seeded or transplanted, irrigated or upland rice

Application rates
Crop	Targets	Rate	Timing
Rice	Rice weeds, Annual grasses, Sedges (nutsedges), Broadleaf weeds	200 – 300 mL/ha	Post-emergence, 15–25 days after sowing or transplanting, weeds at the 2–5 leaf stage; drain the field before spraying and re-flood it 1–3 days later.Max. applications: 1Spray volume: 250 L/ha

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Herbicide

BonHalo 108 EC

Haloxyfop-R-methyl 108 g/L · EC

Post-emergence grass killer for cotton, legumes, sesame and onion, effective on annual and perennial grasses.

Crops: Cotton, Soybean, Groundnut, Cowpea, Sesame, Onion
Targets: Annual grasses, Perennial grasses (Imperata)
Pack sizes: 500 mL, 1 L, 5 L

Technical sheet

BonHalo 108 EC contains 108 g/L haloxyfop-R-methyl, an ACCase inhibitor (fop family) rapidly absorbed by the leaves and carried to the growing points of grasses. It is safe on broadleaf crops and has no effect on sedges. Grasses turn yellow within 7–10 days and die within 2–3 weeks.

Active ingredient: Haloxyfop-R-methyl 108 g/L
Formulation: EC — Emulsifiable concentrate
Mode of action: Systemic grass herbicide, selective in broadleaf crops
Mode-of-action group: HRAC 1
Rainfast period: 1 h
Pack sizes: 500 mL, 1 L, 5 L

Key benefits

Rescue grass control in broadleaf crops
Rainfast one hour after application
Usable at any crop stage, observing the pre-harvest interval
Controls perennials (Bermuda grass) at the higher rate

Application rates
Crop	Targets	Rate	Timing
Cotton	Annual grasses, Perennial grasses (Imperata)	0.4 – 1 L/ha	0.4–0.5 L/ha on annual grasses (2 leaves to early tillering); 0.8–1 L/ha on actively growing perennial grasses (20–30 cm high).Max. applications: 1Spray volume: 200 L/ha
Soybean	Annual grasses, Perennial grasses (Imperata)	0.4 – 1 L/ha	0.4–0.5 L/ha on annual grasses (2 leaves to early tillering); 0.8–1 L/ha on actively growing perennial grasses (20–30 cm high).Max. applications: 1Spray volume: 200 L/ha
Groundnut	Annual grasses, Perennial grasses (Imperata)	0.4 – 1 L/ha	0.4–0.5 L/ha on annual grasses (2 leaves to early tillering); 0.8–1 L/ha on actively growing perennial grasses (20–30 cm high).Max. applications: 1Spray volume: 200 L/ha
Cowpea	Annual grasses, Perennial grasses (Imperata)	0.4 – 1 L/ha	0.4–0.5 L/ha on annual grasses (2 leaves to early tillering); 0.8–1 L/ha on actively growing perennial grasses (20–30 cm high).Max. applications: 1Spray volume: 200 L/ha
Sesame	Annual grasses, Perennial grasses (Imperata)	0.4 – 1 L/ha	0.4–0.5 L/ha on annual grasses (2 leaves to early tillering); 0.8–1 L/ha on actively growing perennial grasses (20–30 cm high).Max. applications: 1Spray volume: 200 L/ha
Onion	Annual grasses, Perennial grasses (Imperata)	0.4 – 1 L/ha	0.4–0.5 L/ha on annual grasses (2 leaves to early tillering); 0.8–1 L/ha on actively growing perennial grasses (20–30 cm high).Max. applications: 1Spray volume: 200 L/ha

Always read the label before use.

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Herbicide

BonMetola 960 EC

S-metolachlor 960 g/L · EC

Pre-emergence herbicide against annual grasses, yellow nutsedge and some broadleaf weeds in maize, cotton, legumes and tomato.

Crops: Maize, Cotton, Groundnut, Soybean, Cowpea, Cassava, Tomato
Targets: Annual grasses, Sedges (nutsedges), Broadleaf weeds
Pack sizes: 1 L, 5 L, 20 L

Technical sheet

BonMetola 960 EC contains 960 g/L S-metolachlor, the active isomer of metolachlor, which inhibits very-long-chain fatty acid synthesis. Taken up by the shoots and young roots of germinating weeds, it prevents their emergence for 6–10 weeks. 10–15 mm of rain or irrigation in the days after application ensures activation.

Active ingredient: S-metolachlor 960 g/L
Formulation: EC — Emulsifiable concentrate
Mode of action: Pre-emergence, residual, shoot-absorbed
Mode-of-action group: HRAC 15
Pack sizes: 1 L, 5 L, 20 L

Key benefits

Highly effective on annual grasses and yellow nutsedge
Long-lasting soil activity
Safe on a wide range of crops
Concentrated formulation: low product volume per hectare

Application rates
Crop	Targets	Rate	Timing
Maize	Annual grasses, Sedges (nutsedges), Broadleaf weeds	1 – 1.5 L/ha	Pre-emergence, within 3 days of sowing: 1 L/ha on sandy soils, 1.5 L/ha on clay or organic-rich soils.Max. applications: 1Spray volume: 250 L/ha
Cotton	Annual grasses, Sedges (nutsedges), Broadleaf weeds	1 – 1.5 L/ha	Pre-emergence, within 3 days of sowing: 1 L/ha on sandy soils, 1.5 L/ha on clay or organic-rich soils.Max. applications: 1Spray volume: 250 L/ha
Groundnut	Annual grasses, Sedges (nutsedges)	1 – 1.5 L/ha	Pre-emergence, within 3 days of sowing: 1 L/ha on sandy soils, 1.5 L/ha on clay or organic-rich soils.Max. applications: 1Spray volume: 250 L/ha
Soybean	Annual grasses, Sedges (nutsedges)	1 – 1.5 L/ha	Pre-emergence, within 3 days of sowing: 1 L/ha on sandy soils, 1.5 L/ha on clay or organic-rich soils.Max. applications: 1Spray volume: 250 L/ha
Cowpea	Annual grasses, Sedges (nutsedges)	1 – 1.25 L/ha	Pre-emergence, within 2 days of sowing; use the lower rate on sandy soils.Max. applications: 1Spray volume: 250 L/ha
Cassava	Annual grasses, Sedges (nutsedges), Broadleaf weeds	1 – 1.5 L/ha	Just after planting the cuttings, before weeds emerge.Max. applications: 1Spray volume: 250 L/ha
Tomato	Annual grasses, Sedges (nutsedges)	1 – 1.25 L/ha	Before transplanting, on prepared, moist soil; transplant without disturbing the treated soil layer.Max. applications: 1Spray volume: 250 L/ha

Always read the label before use.

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Always read the label before use. Product information is given for guidance only; the label of the product authorised in your country always prevails.

Selection guide

Which herbicide should I choose?

Find your field situation to identify the right BonAgro solution, then check the authorised uses on the label.

Which herbicide should I choose?
Field situation	Timing	BonAgro solution
Land clearing before planting, emerged annual and perennial weeds (spear grass, couch grass…)	On actively growing weeds, before sowing or planting	BonGlypho 480 SLGlyphosate (isopropylamine salt) 480 g/L
Inter-row weed control in plantations (cocoa, oil palm, rubber, citrus, cashew)	Directed spray, keeping off the crop's leaves and green bark	BonGlypho 480 SLGlyphosate (isopropylamine salt) 480 g/L
Broadleaf weeds and sedges in rice, maize, sorghum or millet	Post-emergence on young weeds, at the crop stage given on the label	BONAMINE 720 SL2,4-D (dimethylamine salt) 720 g/L
Annual grasses and broadleaf weeds in maize	Post-emergence, maize at 2–8 leaves, on young weeds	BONNICO 40 ODNicosulfuron 40 g/L
Preventing annual grasses and broadleaf weeds in cotton, maize, groundnut or soybean	Pre-emergence, just after sowing, on moist, well-prepared soil	BonPendi 500 ECPendimethalin 500 g/L
Annual grasses in maize, cotton or groundnut	Pre-emergence, just after sowing	BonMetola 960 ECS-metolachlor 960 g/L
Barnyard grass (Echinochloa), sedges and broadleaf weeds in rice	Post-emergence, 15–25 days after sowing or transplanting, following the water management on the label	BonRiz 100 SCBispyribac-sodium 100 g/L
Grasses in broadleaf crops (cotton, soybean, groundnut, cowpea, onion)	Post-emergence, from young grasses up to early tillering	BonHalo 108 ECHaloxyfop-R-methyl 108 g/L

Good practice

Application tips

Identify the dominant weeds (grasses, broadleaves, sedges) before choosing a herbicide.
Apply pre-emergence herbicides to moist soil, free of clods and debris, just after sowing.
Post-emergence, treat young, actively growing weeds, never during drought stress.
Use a flat-fan nozzle and clean water: muddy water reduces the efficacy of active ingredients such as glyphosate.
Prevent drift onto sensitive neighbouring crops by spraying in light wind.
Rinse the sprayer thoroughly after using a hormone herbicide (2,4-D) before treating another crop.

Sustainability

Resistance management

Repeated use of herbicides with the same mode of action selects resistant weeds, as seen in many parts of the world with glyphosate and ALS inhibitors. The HRAC groups shown on our technical sheets make it easy to rotate and combine modes of action.

Rotate HRAC groups from one application and one season to the next.
Combine pre- and post-emergence herbicides with different modes of action in the same programme.
Follow the label rate: under-dosing helps the least susceptible weeds survive.
Combine chemical control with cultural practices: rotation, stale seedbeds, weeding, ground cover.
Report to our advisers any weed that survives a correctly applied treatment.

Modes of action in the range

HRAC 9 EPSP synthase inhibitors (glyphosate) BonGlypho 480 SL
HRAC 4 Synthetic auxins (2,4-D) BONAMINE 720 SL
HRAC 2 ALS inhibitors (nicosulfuron, bispyribac-sodium, imazethapyr, trifloxysulfuron) BONNICO 40 OD BonRiz 100 SC
HRAC 3 Microtubule assembly inhibitors (pendimethalin) BonPendi 500 EC
HRAC 15 Very-long-chain fatty acid synthesis inhibitors (S-metolachlor, butachlor) BonMetola 960 EC
HRAC 1 ACCase inhibitors (haloxyfop, cyhalofop-butyl, quizalofop) BonHalo 108 EC

The mode-of-action group is shown on each product's technical sheet.

FAQ

Frequently asked questions about herbicides

Our advisers will point you to the right solution for your crop.

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What is the difference between a pre-emergence and a post-emergence herbicide?

A pre-emergence herbicide is applied to the soil before weeds emerge and stops them from establishing. A post-emergence herbicide is applied to weeds that have already emerged; it works best on young, actively growing weeds.

How long does it need to stay dry after spraying?

It depends on the active ingredient and formulation: the rainfast period is given on the label and on each product's technical sheet. Our spray window checker helps you check conditions before you spray.

Can I use glyphosate in a standing crop?

No: glyphosate is a non-selective herbicide that also kills the crop. In tree crops it is only used as a directed spray on the weeds, without touching the crop's leaves or green bark, as allowed on the label.

Why did my pre-emergence herbicide not work?

The most common causes are soil that is too dry or poorly prepared, late application (weeds already up), a rate unsuited to the soil type or heavy rain just after spraying. An adviser can help you work out what happened.

How can I avoid damaging neighbouring crops?

Spray in light wind with a suitable nozzle and moderate pressure, and leave an unsprayed buffer at the field edge. Cotton, tomato and cowpea are very sensitive to hormone herbicides: rinse the sprayer thoroughly after use.

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