Soil Type and Rooting Depth Affect Hybrid Bermudagrass Injury with Preemergence Herbicides

Jones, Patrick A.; Brosnan, James T.; Kopsell, Dean A.; Breeden, Gregory K.

doi:10.2135/cropsci2012.08.0475

Cited by 24 publications

(35 citation statements)

References 20 publications

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“…Additionally, field experiments evaluating long‐term survival of seedlings established within HPPs are crucial. Soil organic matter content, soil volumetric water content, soil texture, indaziflam application rate, and rooting depth of plants all affect the amount of injury caused by indaziflam to postgerminative establishment of grass species (Gomez de Barreda et al ; Jones et al ; Schneider et al ; Jeffries & Gannon ). The long‐term effects of HPPs have not been studied and it is unknown if they will limit indaziflam injury beyond early seedling growth.…”

Section: Discussionmentioning

confidence: 99%

Native seeds incorporated into activated carbon pods applied concurrently with indaziflam: a new strategy for restoring annual‐invaded communities?

Clenet

Davies

Johnson

et al. 2019

Restoration Ecology

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Reestablishing native perennial vegetation in annual grass-invaded rangelands is critical to restoring ecosystems. Control of exotics, often achieved with preemergent herbicides, is essential for successful restoration of invaded rangelands. Unfortunately, desirable species cannot be seeded simultaneously with preemergent herbicide application due to nontarget damage. To avoid this, seeding is commonly delayed at least 1 year. Delaying seeding increases the likelihood that annual grasses will begin reestablishing and compete with seeded species. Activated carbon (AC) can provide preemergent herbicide protection for seeded species because it adsorbs and deactivates herbicides. Previous studies suggest that a cylindrical herbicide protection pod (HPP), containing AC and seeds, allows desired species to be seeded simultaneously with the application of the preemergent herbicide imazapic. Unfortunately, imazapic is only effective at controlling annual grasses for 1-2 years. Indaziflam is a new preemergent herbicide which exhibits longer soil activity, with which HPPs may be useful. To assess this possibility, we evaluated seeding two native species (Wyoming big sagebrush [Artemisia tridentata Nutt ssp. wyomingensis] and bluebunch wheatgrass [Pseudoroegneria spicata (Pursh) Á. Löve]), both incorporated into HPPs and as bare seed, at four application rates of indaziflam in a grow room study. HPPs protected seeded species at low, mid, and high rates of indaziflam. The abundance and size of plants was greater in HPPs compared to bare seed treatments. These results suggest that HPPs can be used to seed native grasses and shrubs simultaneously with indaziflam application.

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Section: Discussionmentioning

confidence: 99%

Native seeds incorporated into activated carbon pods applied concurrently with indaziflam: a new strategy for restoring annual‐invaded communities?

Clenet

Davies

Johnson

et al. 2019

Restoration Ecology

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“…Henry et al (25) reported that perennial ryegrass cover in plots treated with indaziflam at 0.053 kg/ha and 0.070 kg/ha measured 37 to 48% compared to 88% for a non‐treated check 257 days after initial treatment. Reduced recovery in response to indaziflam may be explained by research conducted by Jones et al (27). Hybrid bermudagrass injury on sand‐based systems was 25 to 47% 6 WAT in response to indaziflam at 0.035 kg/ha, while reductions in root length density (> 58%) were observed on root systems (5 to 15cm in depth) following applications of indaziflam at 0.035 to 0.070 kg/ha (27).…”

Section: Bermudagrass Recovery In Response To Pre Herbicidesmentioning

confidence: 99%

Effect of Preemergence Herbicides on the Recovery of Bermudagrass from Spring Dead Spot

Beck

Cooper

Hephner

et al. 2013

Applied Turfgrass Science

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Field experiments were conducted in Texas to examine the recovery of a bermudagrass [Cynodon dactylon × C. transvaalensis (L.) Pers.] fairway from spring dead spot (SDS) disease following preemergence (PRE) herbicide applications. In 2011 and 2012 bermudagrass recovery from SDS in the non‐treated check plots (46 and 59%, respectively) was similar to bermudagrass recovery in response to oxadiazon at 3.4 kg/ha (55 and 57%, respectively) 14 weeks after treatment (WAT). Pendimethalin at 2.5 kg/ha resulted in 33 to 38% bermudagrass recovery from SDS 14 WAT. In 2011, oryzalin (1.68 kg/ha), dithiopyr (0.56 kg/ha), prodiamine (0.73 kg/ha), and dimethenamid (1.68 kg/ha) applications resulted in 21 to 25% bermudagrass recovery from SDS 14 WAT. In 2012, bermudagrass exhibited similar recovery in response to prodiamine and oryzalin (24 and 26%, respectively), while response to dithiopyr and dimethenamid was 33 and 34%, respectively, 14 WAT. Bermudagrass exhibited the least amount of recovery (13 to 14%) in response to indaziflam at 0.035 kg/ha, regardless of year. Oxadiazon can be safely used as a PRE option when bermudagrass is recovering from SDS, while the use of oryzalin, prodiamine, dithiopyr, dimethenamid, pendimethalin, and indaziflam may limit recovery and further contribute to a weakened turfgrass system.

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“…This study indicated that the phytotoxicity effects of indaziflam are greater in soils with low organic carbon content. In a greenhouse study, [ 6 ] indicated that the foliar injury and reductions in root-length density of hybrid bermudagrass from indaziflam were greatest at rooting depth of 5 cm than 10 to 15 cm. Furthermore, the study revealed more indaziflam injuries in hybrid bermudagrass established in sand with no organic carbon than in silt loam with organic carbon.…”

Section: Introductionmentioning

confidence: 99%

Mobility of Indaziflam Influenced by Soil Properties in a Semi-Arid Area

et al. 2015

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Indaziflam, a broad-spectrum, pre-emergence herbicide was the focus of a field investigation conducted after the identification of sporadic injury symptoms on the pecan trees a few months after the application. The study was conducted in two pecan orchards located in southern New Mexico, USA, and southeastern Arizona, USA. The objectives of this study were to evaluate the occurrence and distribution of indaziflam in the soil profile of areas where pecan trees were injured (impacted) and areas where no injury symptoms were observed (unimpacted), and to determine the relationship between indaziflam concentrations and soil properties in those locations. Soil samples were collected, one year after applications, from six depth representing 0–7, 7–15, 15–30, 30–60, 60–90 and 90–120 cm depth to determine the concentration of indaziflam in impacted and unimpacted areas of the two orchards. Soil samples were analyzed to determine texture, bulk density, organic matter content, cation exchange capacity, pH, nitrate, chloride and calcium concentrations. The detection frequency of indaziflam was higher in Arizona than in New Mexico, likely due to the differences between the tillage practices and sand contents of the orchards. No significant correlations were observed between indaziflam and soil properties, however indaziflam was mostly detected in areas where pecan trees were unimpacted probably as result of greater organic matter content and soil porosity. More research is needed to understand the causes of injury to pecan trees by indaziflam application.

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Soil Type and Rooting Depth Affect Hybrid Bermudagrass Injury with Preemergence Herbicides

Cited by 24 publications

References 20 publications

Native seeds incorporated into activated carbon pods applied concurrently with indaziflam: a new strategy for restoring annual‐invaded communities?

Native seeds incorporated into activated carbon pods applied concurrently with indaziflam: a new strategy for restoring annual‐invaded communities?

Effect of Preemergence Herbicides on the Recovery of Bermudagrass from Spring Dead Spot

Mobility of Indaziflam Influenced by Soil Properties in a Semi-Arid Area

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