You can use Tenacity Herbicide at the same time as a fertilizer either as a pre or a post emergent provided you use both at the correct usage rates per the labels.
Tenacity can be applied to St Augustine lawns at a rate no higher than 4 fl oz per acre. But only if St Augustine was grown from sod and not from seed.
Tenacity Herbicide is only labeled for use on St. Augustine grass that is grown on sod farms. It cannot be used on St. Augustine in residential lawns. Blindside WDG Herbicide is labeled to treat crabgrass in residential St. Augustine lawns.
Tenacity Herbicide only lists on the label that seashore paspalum is sensitive to it. It is not however labeled for use on St Augustine lawns so would not be recommended. It can only be used on St Augustine grown for sod.
The label for Poa Constrictor does not mention anything about tank mixing with another herbicide such as Tenacity Herbicide. Per the Tenacity label: Other tank mixture partners may be safe but have not been tested. Turf managers wanting to tank mix Tenacity with other herbicides should test on a small basis for compatibility, safety and efficacy before treating large areas.
We would recommend doing a compatibility test before treating.
Your timing is really going to depend on a lot of factors, such as the weeds you are targeting and if/when you are seeding. We would exercise caution if you are applying multiple herbicides at the same time, especially since Trimec is already a blend of 3 active ingredients. Mixing Trimec and Tenacity would be used only as a spot spray, and we would still do a small jar test before mixing a tank of these as well as testing an inconspicuous area of the lawn for tolerance first. You should only use Tenacity as a broadcast pre-emergent application if you are renovating or overseeding the lawn, and most Trimec products require you to wait 2-4 weeks after application before you can reseed. Please let us know if you have additional questions about your application.
Tenacity Herbicide should not be sprayed on edible crops, including almond trees. The product should be applied outside of the dripline of the trees, and take special care not to allow any overspray or drift to contact the tree.
Tenacity Herbicide is only labeled for use on turfgrasses. It could harm ornamental grasses if applied over them.
As long as you are not spraying the roses directly, you can use Tenacity Herbicide on the grass below.
Tenacity is labeled for control of yellow nutsedge only. Tenacity does not cover other species of nutsedge. We do carry Sedgehammer which is labeled for all species of nutsedge.
We would recommend contacting the airline directly for restrictions on transporting Tenacity Herbicide in the air.
Tenacity is not labeled to be used on bahiagrass. The most effective product to control Nimblewill pre-emergently has been removed from the market (MSMA). We have had a lot of folks report that Dimension does a pretty good job pre-emergently but since the product is not technically labeled for Nimblewill we cannot legally recommend it for this use. The usual recommendation since the ban of MSMA is to use a non-selective product such as Round Up on the weed, wait 14 days and re-seed or sod the area.
Quackgrass is not on the label to be controlled by the Tenacity, and we cannot recommend you use it for your needs with it not being listed. We do however carry Certainty, which is a selective post emergent herbicide like Tenacity, and does have Quackgrass listed on the label for weeds controlled. You can see the dilutions and what grasses Certainty is safe to be used on, on the product label.
According to the Tenacity product label you can apply prior to seeding or post seeding of tolerant turfgrass species listed on the label, except fine fescue. If you are applying Tenacity after seeding, you should wait at least four weeks or two mowings, whichever is longer, before applying Tenacity.
Tenacity Herbicide is not labeled for post emergent control of burweed.
Tenacity Herbicide is only safe to use on dormant Bermudagrass, and it will not offer post-emergent control of poa annua, per the product label. A better choice to control existing poa annua in bermudagrass would be Monument 75WG Herbicide. Be sure to use a non-ionic surfactant with Monument as well. We also recommend using a pre-emergent herbicide such as Dimension 2EW or Prodiamine 65 WDG in late Summer/early Fall for the best control of annual bluegrass. Please see our Poa Annua Lawn Care Guide for more tips and information.
Avoid applications of Tenacity? over the top of exposed roots of trees and ornamentals. Please refer to the product label for full detailed usage instructions.
Tenacity Herbicide is not labeled to treat poa trivialis. Please provide your desired turfgrass for an alternate recommendation. Thank you!
Per the manufacturer, Tenacity Herbicide can be used in a hydroseeding tank as long as you're able to apply at a rate of 5 oz per Acre.Water is just the carrier but you need to make sure you irrigate the herbicide well. If this isn't a possibility then we would recommend making separate applications, hydroseeding first and then applying Tenacity.
