Herbicides applied in pre and post-emergence to control Chamaesyce hirta

Freitas, Naira Moreli de; Ferreira, Luiz Augusto Inojosa; Silva, Vanessa Francieli Vital; Teixeira, Celso Augusto Sato; Padovese, Lucas Matheus; Oliveira, Rubem Silvério de

doi:10.1590/0034-737x202269030008

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…The angulatus are under investigation, with chemical control emerging as the most prevalent and potent method for weed management. This includes pre-seedling soil treatment herbicides and post-seedling foliar-applied treatments [19]. Among these, post-seedling foliar-applied herbicides work by absorbing and translocating the chemical through the weeds' stems and leaves, offering benefits such as minimal soil interaction, high flexibility and selectivity, and broad applicability [20].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Indoor Efficacy of Various Foliar-Applied Herbicides on Sicyos angulatus Seedlings

Chen,

Yang,

et al. 2024

JEAI

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Sicyos angulatus is an increasingly pervasive alien species, has been identified as a significant contributor to the deterioration of biodiversity within the northern quadrant of the china. The objective of this investigation was to assess the efficacy of seven herbicides in suppressing the growth of S. angulatus seedlings, specifically targeting the early developmental phase. The application of the herbicides took place during the trileaf stage, a critical growth period. The herbicides under scrutiny included Prometryn, Thifensulfuron methyl, Nicosulfuron, Mesotrione, Bentazone, Imazethapyr, and a composite of Dicamba-Glyphosate-Triclopyr, with water serving as the control. To ensure consistent application and growth conditions, calibrated sprayers and standardized soil conditions were utilized. Data collection encompassed observations of toxicity, measurements of fresh weight, assessment of fresh weight effect, and the implementation of ANOVA to discern treatment variances, facilitating graphical comparison. The results indicated that all evaluated agents exhibited inhibitory effects on the seedlings. The Bentazone treatment exhibited an excellent control effect, with a fresh weight inhibition rate exceeding 95% on S. angulatus seedlings. Similarly, the Mesotrione and Dicamba-Glyphosate-Triclopy treatments demonstrated a good control effect, resulting in a fresh weight inhibition rate of over 85%. When treated with Prometryn, the S. angulatus seedlings displayed a moderate control effect, as indicated by a fresh weightinhibition rate exceeding 55%. However, Thifensulfuron methyl, Nicosulfuron, andImazethapyr showed poor control effects with a fresh weight inhibition rate below 55%. In light of these findings, it is posited that Mesotrione, Bentazone, and the Dicamba-Glyphosate-Triclopyr blend manifest as viable candidates for the prophylaxis and remediation of the early-stage growth of S. angulatus. Paramount to the study's conclusions is the lack of statistically significant disparity in the suppression outcomes across the concentration spectrum of the aforementioned efficacious agents. Hence, when juxtaposing ecotoxicological ramifications and economic considerations, the adoption of a concentration commensurate with the standard unitary dosage is proposed.

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Section: Discussionmentioning

confidence: 99%

Evaluation of the Indoor Efficacy of Various Foliar-Applied Herbicides on Sicyos angulatus Seedlings

Chen,

Yang,

et al. 2024

JEAI

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Dose-response Curves of Herbicides Applied in Pre-Emergency of Euphorbia hyssopifolia L.

Santos,

Oliveira,

Souza

et al. 2024

R. G. Secr.

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A espécie Euphorbia hyssopifolia L. é pertencente à família Euphorbiaceae, e tem ocorrência em áreas de pastagens, estradas e canaviais. Dessa forma, pode interferir na produção agrícola e assim precisam ser manejadas. A chave para solucionar esse problema é a construção de curvas dose-resposta com herbicidas comumente registrados para as culturas. Assim, o presente trabalho tem por objetivo, utilizar curvas de dose-resposta com herbicidas amplamente utilizados na cultura da cana-de-açúcar pertencentes aos mecanismos de ação dos inibidores da ALS (enzima acetolactato sintase), inibidores da biossíntese de carotenoides, inibidores do fotossistema II (FS II), inibidores da biossíntese da celulose, inibidores da protox (enzima protoporfirinogênio oxidase) e inibidores da VLCFA (ácidos graxos de cadeia muito longa), para o controle da E. hyssopifolia. Os experimentos foram conduzidos em casa de vegetação do Campus de Engenharias e Ciências Agrárias da Universidade Federal de Alagoas, com aplicação em pré-emergência de plantas daninhas, dos herbicidas diclosulam, imazapique, metsulfurom-metílico, clomazona, isoxaflutole, indaziflam, hexazinona, tebutiurom, amicarbazona, flumioxazina, oxifluorfem, sulfentrazona, s-metolacloro e piroxasulfona em doses crescentes de: 0; 12,5; 25; 50; 100; 200 e 400% na dose recomendada para a cana-de-açúcar. Em decorrência ao estudo, a E. hyssopifolia apresentou maior sensibilidade aos herbicidas diclosulam, imazapique, metsulfurom-metílico, clomazona, hexazinona, indaziflam, flumioxazina, oxifluorfem e piroxasulfona, pois a letalidade de suas doses ocorreram abaixo de 20% da dose comercial indicada para cultivos de cana-de-açúcar. Já para os herbicidas isoxaflutole, tebutiurom, amicarbazona, sulfentrazona e s-metolacloro, a espécie exibiu menor sensibilidade, com uma dose letal registrada acima de 50% da respectiva dose comercial recomendada.

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Herbicides applied in pre and post-emergence to control Chamaesyce hirta

Cited by 2 publications

References 17 publications

Evaluation of the Indoor Efficacy of Various Foliar-Applied Herbicides on Sicyos angulatus Seedlings

Evaluation of the Indoor Efficacy of Various Foliar-Applied Herbicides on Sicyos angulatus Seedlings

Dose-response Curves of Herbicides Applied in Pre-Emergency of Euphorbia hyssopifolia L.

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