We are more than happy to forward your request to the manufacturer. We do offer another product called Pramaxis MEC Plant Growth Regulator which is available in an 8 oz bottle. You may view the product label here for more information and complete application instructions.
Yes, you can use T-Nex Plant Growth Regulator to encourage horizontal growth and density while reducing verticle growth of St. Augustine turfgrass. For St. Augustine in Texas, you should use 4.5 oz per 1000 sq ft. This rate will result in approximately 50 percent growth reduction over 4 weeks. You may need to reduce rates during periods of stress on the turfgrass. Please be sure you review the full product label before applying this product.
You can reapply T-Nex Plant Growth Regulator every 8 weeks.
No, T-Nex Plant Growth Regulator is not labeled for use on shrubs. An alternative product would be Atrimmec Plant Growth Regulator (PGR) as this product can be used on Hedges, shrubs, trees and groundcovers to slow unwanted growth.
Please refer to the Foliar Sprays For Growth Regulation (shrubs, hedges, and groundcovers)Section and Table 1 on page 2 of the product label for a list of tolerant ornamentals,shrubs, etc that are safe for application as well as the recommended mix rates. On hedges, shrubs and groundcovers one gallon of spray solution covers 400 to 600 square feet.
You could potentially mix a PGR such as T-Nex Plant Growth Regulator with a fungicide like Propiconazole. Be sure you are using the correct application rates for both. We also always recommend a small jar test first to check compatibility before mixing a larger tank. Also be sure there is good agitation if you are using a larger capacity sprayer.
Since TNex works through the foliage you would want to make sure that the grass is fully established before using on newly seed turfgrass. Mowing at least 2-3 after seeding before applying would be best and using lower rates to start.
We do not recommend applying herbcides at the same time as a turf growth regulator such as T-Nex because this may put too much stress on the turfgrass at one time. Per the product label: "Because some herbicides can injure turf, test tank mixes with Quali-Pro T-Nex on a small scale before widespread use. See the directions for testing in the TANK MIX COMPATIBILITY TEST section."
TZone Herbicide, in particular, already has multiple active ingredients that can be pretty harsh on the turfgrass, so we would not apply these products together unless you have first tested a small area for compatibility and turf tolerance.
T-Nex Plant Growth Regulator is only for applications to cool and warm season turfgrasses in the following areas: Commercial & Residential Turf-grass: Golf Courses, Sod Farms*(Not in AZ), Sports Fields, Cemeteries, Difficult-to-Mow areas?. It can be applied around the edge of trees without causing injury.
As long as you keep pets/children out of the area while you treat and until the T-Nex Plant Growth Regulator has had time to completely dry or settle it is safe for pets and people to return and resume normal activity typically after 4-6 hours. Always be sure to follow the product label instructions.
According to the label for T-Nex Plant Growth Regulator the rate to use on Hybrid Bermuda grass is .25 oz per 1000 sq ft. It is a growth regulator which helps reduce the growth of cool and warm season grasses while helping improve their quality and stress tolerance. Please refer to the label for complete application instructions.
There not a specific temperature restriction for T-Nex Plant Growth Regulator only that it should be applied when the turf is actively growing. Generally that is when you are still mowing the lawn.
Lower rates should be used when when turf is going dormant due to high or low temperatures, or lack of moisture.
T-Nex Plant Growth Regulator is labeled for use on both commercial and residential Centipede grass, and should have no impact on a pre-emergent herbicide application.
The T-Nex Plant Growth Regulator can be applied now based on the timeline you have given for your seeding and mowing, and the height its currently at. Once your new grass gets to the height of the existing grass and you've mowed it to where they are pretty even, you can put the T-nex on the lawn without any issue and it will give the result you are looking for from the lawn.
