Control de Commelina erecta L. con herbicidas postemergentes con el objetivo de su uso en cultivos de soja transgénica

Vega, M. H. de la; Lemir, A. H. Morán; García, Augusto E.; Pace, Ricardo; Aceñolaza, Mariana

doi:10.1590/s0100-83582000000100005

Cited by 5 publications

(4 citation statements)

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“…Wilson (1981) reported that the difficulty of controlling plants of the Commelinaceae family can be attributed to their double reproduction mechanisms: by seed and by rooting at their nodes. According Vega et al (2000), the difficulty of controlling this species is directly related to its development stage. When herbicide application was divided between various development stages, Krolikowski et al (2017) did not find any difference between the treatments for stages 22 and 51.…”

Section: Discussionmentioning

confidence: 99%

Crop management and its effects on weed occurrences

et al. 2021

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The objective was to evaluate weed phytosociology and similarities between crop management systems in the Chapadões region. The experiment was conducted at in agricultural area located in the municipality of Chapadão do Sul, MS, during the 2016/17 harvest. Three crop managements strategies were used: (1) cotton/soybean/Urochloa, (2) millet/soybean/millet and (3) millet/soybean/crotalaria. A phytosociological survey of weeds was carried out during soybean cultivation and cover crops growth, in succession. The evaluation area for each management strategy was 0.5 ha. Soybean surveys were carried out in October and January, while the cover crop surveys were performed in February and May. The relative frequency (RF), relative density (RD), relative abundance (AR), and relative importance (RI) of weeds, Venn diagram, and Jaccard and Sorenson similarity indices were evaluated. The management area represented by the cotton/soybean/Urochloa rotation had fewer weed species than others. The species Cenchrus echinatus, Digitaria insularis, Digitaria sanguinalis, Eleusine indica and Commelina benghalensis had the highest phytosociological indeces among the monocotyledons. Attention is required for managing the dicotyledons Amaranthus deflexus, Conyza canadensis and Senna obtusifolia despite their low indices because of herbicide resistant cases. The highest indeces of similarity were found between managements areas 2 and 3, which did not rely on cotton cultivation prior to soybeans.

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Section: Discussionmentioning

confidence: 99%

Crop management and its effects on weed occurrences

et al. 2021

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“…We provide the first record for Europe of this plant, and most likely the second for the Mediterranean Basin. Its global distribution, as well as its tolerance to glyphosate treatment (De la Vega et al, 2000), make this species a potential invasive plant in our area.…”

Section: Methodsmentioning

confidence: 99%

Nuevas citas de plantas vasculares alóctonas en Cataluña (NE de la península ibérica)

et al. 2019

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Aportamos citas de cinco plantas alóctonas nuevas para Europa —Commelina erecta, Cylindropuntia fulgida, Dasylirion serratifolium, xGraptosedum y Senecio crassissimus—, dos nuevas para la península ibérica —Lobelia laxiflora subsp. angustifolia y Pennisetum flaccidum— y cuatro nuevas para Cataluña —Dimorphotheca fruticosa, xGasteraloe beguinii, Opuntia elatior y Tradescantia sillamontana—. También presentamos nuevos datos sobre diez plantas poco citadas en Cataluña. En las últimas décadas el cultivo de plantas ornamentales constituye la principal causa de introducción de especies alóctonas a escala mundial, algunas de las cuales son potencialmente invasoras. La mayoría de las plantas que constan en este trabajo son escapadas de cultivos o provienen de vertidos de restos de jardinería. Algunas especies se encuentran localmente naturalizadas y en algún caso podrían presentar un comportamiento invasor.

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“…The weeds Stachytarpheta cayennensis (Verbenaceae), Commelina diffusa (Commelinaceae), and Salvia palifolia (Lamiaceae), predominant in shaded coffee crops, can be important sources of food due to their variety of attributes such as a long period of profuse flowers and vibrant colors, volumes of nectar and considerable pollen grains, adequate growth for soil protection, and unusual morphologies to attract a variety of pollinators (Barp et al, 2010;De La Vega et al, 2000;Lundgren, 2009;Reith and Zona 2016).…”

Section: Resultsmentioning

confidence: 99%

“…Arévalo et al-Feeding and refuge of beneficial coffee insects pollinators (Barp et al, 2010;De La Vega et al, 2000;Lundgren, 2009;Reith and Zona 2016).…”

Section: Hours Of Higher Activity Of Insects Associatedmentioning

confidence: 99%

Coffee crop weeds: refuge and food source for pests’ natural enemies

Arévalo

Albino-Bohórquez

et al. 2021

rcia

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Weeds in coffee crops have diverse ecosystem services, such as sheltering and feeding natural enemies of pest insects. This study aimed to identify the potential of coffee weeds as food and refuge for natural enemies in shaded and sun coffee crops. Weeds were sampled in a 100 m transect installed in each type of coffee crop. Malaise traps and sweep-nets were both used to capture insects every 15 days for five months. After identifying the dominant weeds, observations and a direct recollection of insects were carried out at three different hours during three days. Faunistic analyses were performed, as well as the Bray and Curtis similarity analysis and the Student's t test. Emilia sonchifolia, Acmella oppositifolia, Bidens pilosa were predominant in the free exposure sun plantation coffee crops and Commelina diffusa, Salvia palifolia, Stachytarpheta cayennensis in under shade coffee crops. High insect activity was found between 11:30 am-12:00 pm. In these weeds, we found about 15 families, the most important were Formicidae, Braconidae, and Coccinellidae. We concluded that the shaded coffee crops exhibited a natural enemy community similar to that of the sun. Through this exploratory study, we verified that weeds harbor a diversity of natural enemies important to the coffee agroecosystems.

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Control de Commelina erecta L. con herbicidas postemergentes con el objetivo de su uso en cultivos de soja transgénica

Cited by 5 publications

References 1 publication

Crop management and its effects on weed occurrences

Crop management and its effects on weed occurrences

Nuevas citas de plantas vasculares alóctonas en Cataluña (NE de la península ibérica)

Coffee crop weeds: refuge and food source for pests’ natural enemies

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