Features Agronomy Weeds
New herbicides hitting the market

Here is a summary of new pesticide products that are hitting the shelves in time for spraying, with product information provided by the manufacturers.

New herbicides will help to control Canada thistle. Photos by Bruce Barker.

Grassy and broadleaf weed herbicides

Avert
Active ingredient:
imazamethabenz-methyl
Herbicide Group: 2
Manufacturer: Viterra

Avert is a Group 2 post-emergent grassy weed herbicide for use in wheat and barley. 
Avert controls wild oats and select broadleaf weeds in wheat (spring and durum), barley and sunflowers.

Everest GBX
Active ingredient: flucarbazone sodium + fluroxypyr
Herbicide Group: 2 and 4
Manufacturer: Arysta LifeScience Canada

Everest GBX provides cross-spectrum grass and broadleaf weed control in wheat. Weeds controlled include wild oat, green foxtail, cleavers, green smartweed, kochia, redroot pigweed, shepherd’s purse, stinkweed, volunteer canola, volunteer flax and wild mustard. Tank-mix partners include 2,4-D, MCPA, Curtail M and Deploy 75DF.

Harmony MAX
Active ingredients: thifensulfuron-methyl + tribenuron-methyl + clodinafop-propargyl + fluroxypyr
Herbicide Groups: 1, 2 and 4
Manufacturer: DuPont

This new product leverages the strengths of four active ingredients from three different groups to provide broad-spectrum control of key grass and broadleaf weeds. In one convenient package, a grower gets effective control of grass and broadleaf weeds such as wild oats, cleavers and kochia (including Group 2–resistant) in spring wheat.

Tandem
Active ingredient: pyroxsulam and fluroxypyr
Herbicide Group: 2 and 4
Manufacturer: Dow AgroSciences

Tandem provides flexible one-pass control of grass and broadleaf weeds in spring wheat and durum. The combination of Group 2 and 4 actives provides multi-mode resistance management on broadleaf weeds, as well as superior control of wild oats, including Group 1-resistant biotypes. Tandem has complete crop rotation flexibility for use in spring wheat and durum throughout all regions of the Canadian Prairie provinces.

Velocity m3 All-In-One
Active ingredient: thiencarbazone-methyl + pyrasulfotole + bromoxynil
Herbicide Group: 2, 6 and 27
Manufacturer: Bayer CropSciences

Velocity m3 All-In-One is a formulation change from Velocity m3, with all three modes of action pre-mixed in one jug. Registered in spring and durum wheats; weeds controlled or suppressed include barnyard grass, canary seed, green foxtail, Japanese brome, Persian darnel, wild oats, yellow foxtail, annual sow thistle, perennial sow thistle, Canada thistle, chickweed, cleavers, dandelion, flixweed, hemp-nettle, kochia and many other broadleaf weeds. Sunflower has been added to the 10-month recropping guidelines.

Phantom
Active ingredient: imazethapyr
Herbicide Group: 2
Manufacturer: MANA Canada

Phantom herbicide controls tough weeds in field pea, dry bean, alfalfa and soybean. With the same active ingredient as Pursuit, Phantom provides pulse growers with widespread choice. Phantom works on tough-to-control weeds like chickweed, cleavers, green foxtail, hemp-nettle and smartweed.

Grassy weed herbicides

Traxos
Active ingredients: pinoxaden + clodinafop
Herbicide Group: 1
Manufacturer: Syngenta

Traxos is a grassy weed herbicide registered for spring and durum wheats. With a built-in adjuvant, Traxos provides rapid control of wild oats, green and yellow foxtail, barnyard grass, Persian darnel, volunteer tame oats and canary seed, and proso millet. It can be tank-mixed with several broadleaf herbicides, including Pulsar, and insecticides and fungicides.

A number of new pre-seed label updates have occurred for 2011.

Broadleaf weed herbicides

Accurate
Active ingredient: metsulfuron-methyl
Herbicide Group: 2
Manufacturer: Cheminova

Accurate is registered for post-emergence use on wheat (spring and durum), barley and established creeping red fescue, orchard grass, crested and intermediate wheat grass (seed or forage) and for control of western snowberry and wild rose in pasture and rangeland.
Accurate controls a number of difficult broadleaf weeds such as hemp-nettle, flixweed, stinkweed, sow thistle and chickweed.

Nimble
Active ingredient: thifensulfuron-methyl + tribenuron-methyl
Herbicide Group: 2
Manufacturer: Cheminova

Nimble is registered for selective post-emergence control or suppression of broadleaved weeds in wheat (spring, winter or durum) spring barley and oats, not underseeded to legumes or grasses. Nimble controls a number of broadleaf weeds, including difficult-to-control species such as narrow-leaved hawk’s-beard, wild buckwheat, hemp-nettle, stinkweed and flixweed.

Nuance
Active ingredient: tribenuron-methyl
Herbicide Group: 2
Manufacturer: Cheminova

Nuance controls a number of tough weeds such as narrow-leaved hawk’s-beard, stinkweed, dandelion and flixweed. It is registered for post-emergence use in conjunction with various tank-mix partners on wheat (spring and durum), barley, summer fallow, and when tank-mixed with glyphosate, as an effective pre-seed burndown treatment on fields to be planted to wheat (spring and durum) and barley.

Optica Trio
Active ingredients: MCPA, dicloprop-P and mecroprop-P
Herbicide Group: 4
Manufacturer: UAP

Optica Trio combines three actives to offer excellent control of Group 2-resistant weeds such as kochia, cleavers and chickweed, as well as many other broadleaf weeds, such as wild buckwheat, volunteer canola and stinkweed, among others.

Label updates
Heat (saflufenacil); Group 14. Launched for the 2010 growing season for pre-seed, pre-emerge and chemfallow applications with 2011 label updates:

• Control of dandelion, narrow-leaved hawk’s beard, cleavers and flixweed
• Corn forage and silage can be harvested, used as feed or grazed 60 or more days after application of Heat.
• Legume forage (chickpeas, field peas and lentils) – may be used as feed or grazed 60 or more days after application of Heat.
• Small grains (wheat, barley and oats) – forage and hay can be used as feed or grazed 30 or more days after application of Heat.
• Soybeans – may be used as feed or grazed 60 or more days after application of Heat.

Odyssey DLX (imazamox, imazethapyr, tepraloxydim); Group 2 and 1. For the 2011 season, Odyssey DLX has received registration for use on Clearfield sunflowers.

VIPER (imazamox + bentazon): Group 2 and 6. VIPER herbicide is now registered to provide control of volunteer Clearfield lentils and suppression of Group 2-resistant cleavers.

Everest 70WDG (flucarbazone sodium); Group 2. Everest is now registered for application at 35.7 grams of product per hectare (25gai/ha) to wheat for control of wild oat, tame oat and green foxtail that are no larger than four leaf and two tillers. Use Everest 70WDG applied at 35.7 grams of product per hectare for wild oat infestations greater than 100 plants per square metre and when plants are actively growing under ideal environmental conditions.

Barricade (thifensulfuron methyl, tribenuron methyl, and fluroxypyr); Group 2 and 4. Now registered for control of volunteer flax up to 12 centimeters (nearly five inches) high.

Triton C (quinclorac, thifensulfuron-methyl, tribenuron-methyl); three active ingredients from Group 2 and 4. Registered for use on all barley varieties, including malt barley.

Express SG (tribenuron-methyl), Group 2 and applied with glyphosate, is registered for suppression of scentless chamomile and suppression of white cockle.

Express SG – minor-use registration for use pre-seed to alfalfa, red clover and alsike clover (forage and seed production).
Assure II – registered for suppression of foxtail barley.

PrecisionPac
PP-8454 (Groups 2 and 4) – Approved for aerial application.
DB-10550 (Groups 2 and 4) – Approved for aerial application.
PP-23235 (Group 2) – Registered for control of scentless chamomile.
PP-31155 (Group 2) – Registered for control of stork’s-bill.