You would only need to water in the pre-emergent application of Tenacity Herbicide on dormant bermuda if you felt you did not use a sufficient amount of water during the initial application. Typically the goal is to create an even barrier in the soil with the chemical so the weeds cannot penetrate through it. Light watering no more than a 1/2 inch of rainfall equivalent is fine.
The product label for Tenacity Herbicide only states it is safe to be used on perennial ryegrass. There is no mention of it controlling Italian ryegrass, so I would not suggest using the product to control that particular weed.
Tenacity is usually pet safe as soon as it is dry. However, chickens are different and we would recommend reaching out to your vet for more information on what to do. Or you can reach out to the manufacturer for more information as well: Syngenta 866.796.4368.
We would not recommend using this product on dormant centipede. If the Tenacity Herbicide is used on semi-dormant grass, it may harm the turf. Tenacity also does not have very good cool-weather performance as a post-emergent. If you would like to share some of the specific weeds you are targeting, then we may be able to better assist you.
Whenever a lawn has large amounts of fine fescue its recommended to not use Tenacity unless some damage can be tolerated. Typically applying it as a pre emergent will lead to less harm than using it as a post emergent on a sensitive blend. We'd suggest applying the Tenacity as a pre emergent first, then wait 2-3 weeks to seed. Or seed and apply Tenacity 2 weeks after seeding.
Since a surfactant is designed to reduce water tension during spraying, applying it separately is unlikely to improve results. If you were applying the Tenacity as a pre-emergent herbicide, then there should not be any detriment to the application. If you were applying as a post-emergent, then you may need to reapply the product in 2-3 weeks as a spot treatment for the target weeds.
We would not recommend Tenacity Herbicide be applied to flower beds and ornamental plants. According to the product label: “Avoid over-spray or drift of spray applications onto ornamentals or flower beds and gardens. Roses and daylilies are sensitive plant species. Avoid applications over the top of exposed roots of trees and ornamentals."
Tenacity is only labeled for use in Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue, Perennial Ryegrass, Fine Fescue, St. Augustine Grass (grown for sod only). You should not use Tenacity Herbicide on or around desirable ornamental plants or groundcovers, such as pachysandra.
No, Tenacity Herbicide is not labeled for zoysiagrass therefore could injure or kill the turfgrass.
Tenacity Herbicide is one of the few products that can be applied at seeding, prior to seeding, or just after seeding of new grasses to help prevent and control weeds at the same time. Be sure to check the label for any restrictions to certain turf types as Fine Fescue is more sensitive than other species when using Tenacity at seeding. Be sure to use a Non Ionic Surfactant with the Tenacity when applying for best results.
Tenacity Herbicide is not labeled safe for use on Floratam species and is only for use on St Augustine grown for sod.
Tenacity Herbicide does not have any insecticidal properties to it there for would not ham any beneficial insects.
Tenacity Herbicide, as well as any other herbicide, should not be applied to a lawn that is stressed due to drought conditions as you risk further damage being done to the lawn.
Tenacity Herbicide is only labeled to be used on Bermuda when it is fully dormant, otherwise it can be sensitive to applications and could harm it. It is not recommended for elimination of Bermuda or desired Bermuda turf.
We would recommend removing the dead bentgrass before planting your seed after using Tenacity Herbicide.
Tenacity Herbicide can last in the soil up to 30 days if used as a broadcast pre emergent treatment, so you would need to wait at least 30 days after an application before putting in any new seeds.
We recommend that you let the Tenacity Herbicide application dry completely and then applying the insecticide.
Tenacity Herbicide is not listed to control any type of vines not can it be used over juniper. We would recommend carefully treating using a non selective such as Roundup directly to the vine. This is best done if the vine is cut and applied directly using a small paint brush to the fresh cut surface. Or hand pulling is the other option.
Tenacity Herbicide can be applied in the summer and works best on crabgrass that has just emerged up to the 4 tiller stage. Keep in mind that the best temperature range to apply most herbicides, including Tenacity, is between 65-85 degrees. We recommend early morning or late evening applications to avoid damage to your lawn.
