An Update On Group G’s And When To Use Them

There are Hammers, Nails, Sledges, Sharpens and many more, but where and when will each of these group G spike herbicide be best used? Striker/Goal…
January 6, 2021News & Advice Back to All

There are Hammers, Nails, Sledges, Sharpens and many more, but where and when will each of these group G spike herbicide be best used?

Striker/Goal (Oxyfluorfen) –

Probably the first of the Group G and the most common. Once good on marshmallows, it now is an economical spike for many summer sprays but lacks the punch of some of the newer spikes and has a restrictive grazing withholding. We recommend use when targeting small button-sized weeds.


Hammer/Nail (Carfentrazone) –

The next Group G to be released and a major step up in marshmallow control over Striker. Carfentrazone is good on most difficult to control broadleaf weeds, but care needs to be taken when spraying during warm summer days as it can burn the weeds too quick. It’s also an attractive spike where short grazing withholding is needed. Be wary of formulation strength of different products. A well priced good spike for most situations.


Sledge (Pyraflufen) –

Originally premixed in a product called Pyresta. Sipcam saw value in the product as a standalone spike allowing us to adjust mix partners. A broadleaf specialist with excellent control of wireweed and other tough to control weeds. Due to a slightly slower burn down, it can be used during the summer months without a loss in efficacy and doesn’t require the addition of a penetrative oil (Hasten) like Hammer/Sharpen/Valor.


Valor/Terrain (Fumioxazin) –

A very similar spike to Hammer with similar efficacy on weeds. Look to use over Hammer where clover/medic is more of a target weed. Possible options for use on fence lines at high rates for season-long control.


Sharpen (Saflufenacil) –

The marshmallow expert! Sharpen provides very quick burndown of large broadleaf weeds with great control of Capeweed, Prickly Lettuce and Fleabane. You may have experienced using this spike with paraquat, but when spiked with glyphosate gives an excellent kill on a broad range of weeds. A fantastic option if we have an early break and we have big weeds to target.


Voraxor (Saflufenacil & Trifludomoxazin) –

Released for the 2021 season. This new product comes with various use rates for different situations, such as knockdown, and as a pre-emergent. Voraxor offers residual control of a wide range of grass and broadleaf weeds. The high rate can provide control for 8 to 12 weeks; however, you will need to consider plant backs when used over summer. Will be at a premium to other products.


Terrador (Tiafenacil) –

Also released for the 2021 season, but unfortunately brought to the market with limited stock. Will be a well-priced knockdown spike able to bring down bigger weeds with very quick brownout. Will look likely to become a go-to spike for almost every situation. Granular formulation. Keep an eye out so you can get your hands on some to try for next summer.


Please note that these herbicides are spikes and should be used with glyphosate or other non-selective herbicide for best control. Also, ensure correct adjuvant is used as different spikes will require different adjuvant types. There are also slight differences for plant-backs to different crops for each spike. For more information, feel free to contact one of the team.