Time to kill the beast - Importance of taxa, concentration and timing during application of glyphosate to knotweeds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F22%3A00557974" target="_blank" >RIV/67985939:_____/22:00557974 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41330/22:91001

Výsledek na webu

<a href="https://doi.org/10.1111/wre.12528" target="_blank" >https://doi.org/10.1111/wre.12528</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/wre.12528" target="_blank" >10.1111/wre.12528</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Time to kill the beast - Importance of taxa, concentration and timing during application of glyphosate to knotweeds

Popis výsledku v původním jazyce

Knotweeds (Fallopia spp., syn. Reynoutria spp.) are among the most invasive plants globally, mainly due to their ability to regenerate from rhizomes and their extremely high biomass production. Spraying with glyphosate is a common control method, yet little is known about its effectiveness on underground rhizomes. In addition, there are concerns about the negative environmental impact of glyphosate. Therefore, it is essential to use appropriate dosages and application times to avoid overuse. Based on a pot trial and field experiments, we assessed the effectiveness of glyphosate concentration, application time, and influence of glyphosate on rhizomes from different soil depths to determine their effect on the aboveground and belowground parts of knotweed plants of different taxa. The study demonstrates that sampling rhizomes is a more consistently accurate indicator of knotweed regeneration rate than sampling shoots. Regeneration of shoots and rhizomes was affected differently by glyphosate spraying depending on the application time. The effect on rhizomes was much greater with early season spraying than late season spraying, which primarily reduced shoot biomass. However, no differences were found between rhizome vitality at different soil depths. F. sachalinensis was sufficiently controlled by early season foliar spray with 5% glyphosate (3.65 kg a ha(-1)) in contrast to F. japonica and F. xbohemica. For rapid and targeted control, early season foliar spray with 8% glyphosate (5.85 kg a ha(-1)) is needed and, in the case of the hybrid, for a minimum of two consecutive seasons.

Název v anglickém jazyce

Time to kill the beast - Importance of taxa, concentration and timing during application of glyphosate to knotweeds

Popis výsledku anglicky

Knotweeds (Fallopia spp., syn. Reynoutria spp.) are among the most invasive plants globally, mainly due to their ability to regenerate from rhizomes and their extremely high biomass production. Spraying with glyphosate is a common control method, yet little is known about its effectiveness on underground rhizomes. In addition, there are concerns about the negative environmental impact of glyphosate. Therefore, it is essential to use appropriate dosages and application times to avoid overuse. Based on a pot trial and field experiments, we assessed the effectiveness of glyphosate concentration, application time, and influence of glyphosate on rhizomes from different soil depths to determine their effect on the aboveground and belowground parts of knotweed plants of different taxa. The study demonstrates that sampling rhizomes is a more consistently accurate indicator of knotweed regeneration rate than sampling shoots. Regeneration of shoots and rhizomes was affected differently by glyphosate spraying depending on the application time. The effect on rhizomes was much greater with early season spraying than late season spraying, which primarily reduced shoot biomass. However, no differences were found between rhizome vitality at different soil depths. F. sachalinensis was sufficiently controlled by early season foliar spray with 5% glyphosate (3.65 kg a ha(-1)) in contrast to F. japonica and F. xbohemica. For rapid and targeted control, early season foliar spray with 8% glyphosate (5.85 kg a ha(-1)) is needed and, in the case of the hybrid, for a minimum of two consecutive seasons.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/TH02030523" target="_blank" >TH02030523: Vývoj geoinformačního portálu invazních nepůvodních druhů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Weed Research

ISSN

0043-1737

e-ISSN

1365-3180

Svazek periodika

62

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

215-223

Kód UT WoS článku

000768691600001

EID výsledku v databázi Scopus

2-s2.0-85126263297