scholarly journals Chemical control of curled dock (Rumex crispus L.) and other weeds in noncropped areas

2008 ◽  
Vol 23 (2) ◽  
pp. 123-126 ◽  
Author(s):  
Tsvetanka Dimitrova ◽  
Plamen Marinov-Serafimov
Keyword(s):  
Chenopodium Album ◽  
Reproductive Potential ◽  
Field Trials ◽  
Cirsium Arvense ◽  
Convolvulus Arvensis ◽  
Rumex Crispus ◽  
Carduus Acanthoides ◽  
Herbicide Mixture ◽  
Amaranthus Spp ◽  
Sonchus Arvensis

Rumex crispus L. is an invasive species widespread in our country and in particular in the region of North Bulgaria. It is characterized by high biological and ecological plasticity. Owing to its great reproductive potential, the weed has been assigned to the list of economically most important weeds in the country. With the purpose of studying the possibility of chemical weed control in noncropped areas with heavy natural background infestation with R. crispus L. and other dicotyledonous weeds, two field trials were carried out. A ready-to-use herbicide mixture 2,4-D 140.2 g/l-1 + Triclopyr 144 g/l-1, trade product Genoxon 3X (X0050), was tested at two doses of active ingredient, 3552 and 2842 ml/ha-1. It was found that: (1) population density of Rumex crispus L. can be successfully reduced by treatment at the stage of early stem formation; herbicide efficacy with 3552 and 2882 ml/ha-1 doses on the 21st day after treatment was 100% and 90.5%, respectively, at the end of vegetation 94.4 and 85.7%, respectively; (2) herbicidal efficacy was lower when R. crispus L. was treated at the 5 - 6 leaf stage, being 100 - 94.1% and 80 - 76.5% respectively for the indicated doses and time of recording; (3) at the studied doses the herbicide controlled both annual dicotyledonous weeds (Amaranthus spp., Chenopodium album L., Portulaca oleracea L.) and perennial dicotyledonous ones (Cirsium arvense L., Sonchus arvensis L., Convolvulus arvensis L., Carduus acanthoides L.), but it was not toxic to monocotyledonous weeds.

scholarly journals Možnosti zatiranja izbranih plevelnih vrst v Evropi z žuželkami

2020 ◽  
Vol 115 (2) ◽  
pp. 389
Author(s):  
Sergeja ADAMIČ ◽  
Stanislav TRDAN
Keyword(s):  
Weed Control ◽  
Ambrosia Artemisiifolia ◽  
Cirsium Arvense ◽  
Convolvulus Arvensis ◽  
Rumex Crispus ◽  
Polygonum Aviculare ◽  
Galium Aparine ◽  
Field Bindweed ◽  
Ophraella Communa ◽  
Tyta Luctuosa

Weed control by insects is increasingly important, as chemical weed control (the use of herbicides) has an important impact on the environment and, consequently, on all organisms living there. The use of insects to control weeds thus represents an alternative to herbicides. The article presents the suppression of some widespread and persistent weeds in Europe with their natural enemies - insects. The following combinations presented below are: broad-leaved dock (<em>Rumex obtusifolius</em> L.) – <em>Gastrophysa viridula</em> (De Geer, 1775), curly dock (<em>Rumex crispus</em> L.) – <em>Apion violaceum</em> (Kirby, 1808), common ragweed (<em>Ambrosia artemisiifolia</em> L.) – <em>Ophraella communa</em> (LeSage, 1986) and <em>Zygogramma suturalis</em> (Fabricius, 1775), creeping thistle (<em>Cirsium arvense</em> (L.) Scop.) – <em>Cassida rubiginosa</em> (Müller, 1776), cleavers (<em>Galium aparine</em> L.) – <em>Halidamia affinis</em> (Fallen, 1807) and <em>Sermylassa halensis</em> (Linnaeus, 1767), common knotgrass (<em>Polygonum aviculare</em> L.) and black-bindweed (<em>Fallopia convolvulus</em> L.) – <em>Gastrophysa polygoni</em> (Linnaeus, 1758) and as the last one field bindweed (<em>Convolvulus arvensis</em> L.) – <em>Galeruca rufa</em>  (Germar, 1824) and <em>Tyta luctuosa</em> (Denis in Schiffmuller, 1775).

scholarly journals Uptake of more important mineral components by common field weeds on loess soils

2013 ◽  
Vol 39 (1) ◽  
pp. 129-141 ◽  
Author(s):  
Leszek Malicki ◽  
Czesława Berbeciowa
Keyword(s):  
Spring Barley ◽  
Chenopodium Album ◽  
Cultivated Plants ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Stellaria Media ◽  
Sugar Beets ◽  
Polygonum Convolvulus ◽  
Mineral Components ◽  
Sonchus Arvensis

We have determined the contents of N, P, K, Ca, Mg, Na, Fe, Cu, Mn and Zn in winter wheat, spring barley, sugar beets and winter rape, as well as in the most common weed species infesting these crops. It was established that the percentage of mineral components in the dry matter of the majority of weeds is higher than in that of the cultivated plants. The most dangerous weed species competing with plants for the investigated nutrients were: <i>Chenopodium album, Cirsium arvense, Convolvulus arvensis, Polygonum convolvulus, Sonchus arvensis</i> and <i>Stellaria media</i>.

scholarly journals Main weed species of the Republic of Bashkortostan: position on environmental gradients and agrobiological groups

2018 ◽  
Vol 7 (4) ◽  
pp. 134-138
Author(s):  
Gulnaz Rimovna Khasanova ◽  
Sergey Maratovich Yamalov ◽  
Maria Vladimirovna Lebedeva
Keyword(s):  
Environmental Gradients ◽  
Chenopodium Album ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Republic Of Bashkortostan ◽  
Ordination Analysis ◽  
Floristic Analysis ◽  
The Republic ◽  
Well Differentiated ◽  
Sonchus Arvensis

The paper presents a study of the main weed species in the Republic of Bashkortostan according to the results of a floristic analysis of 1170 geobotanical releves. The authors define 30 species, their constancy is more than 20%. Five species of dicotyledonous and 1 species of monocotyledonous plants Convolvulus arvensis , Chenopodium album , Cirsium setosum , Fallopia convolvulus , Avena fatua , Sonchus arvensis are characterized with the greatest values of occurrence (higher than 50%). According to the results of the ordination analysis and ANOVA the considered species are well differentiated on the gradients of the factors of moistening, richness of the soil and a crop. Among agrobiological groups of weed species the annual and creeping-rooted weeds prevail.

Efficacy of some herbicides in wheat crop

Pesticidi ◽  
2002 ◽  
Vol 17 (1-2) ◽  
pp. 23-29
Author(s):  
Ljiljana Radivojevic ◽  
Radmila Stankovic-Kalezic ◽  
M. Budimir
Keyword(s):  
Winter Wheat ◽  
Chenopodium Album ◽  
Field Trials ◽  
Wheat Crop ◽  
Weed Species ◽  
Convolvulus Arvensis ◽  
Stellaria Media ◽  
Galium Aparine ◽  
Winter Wheat Crop ◽  
Fumaria Officinalis

In 2001 and 2002 field trials were carried out to evaluate efficacy of eight herbicides, alone or in the combinations, in winter wheat crop, in the Juzni Banat region. The next herbicides were examined: 2,4-D, Fluroksypyr Tribenuronmethyl, 2,4-D+Florasulam, Bentazon+Dicamba, Triasulfuron+Dicamba lodosulphuron-methylodium+Amidosulphuron Herbicides were applied after tillering of wheat was over. More frequent weed species were: Anthemis arvensis, Chenopodium album, Cirsium arvense, Convolvulus arvensis Delphinium consolida, Fumaria officinalis, Galium aparine, Lamium purpureum Polygonum convolvulus, Ranunculus arvensis, Sinapis arvensis, Stellaria media, Veronica polita i Viola tricolor. The most sensitive weed species to all herbicides were S. arvensis and Ch. album. The most tolerant was G. aparine (exept to fluroxipyr). The other species were less sensitive and herbicides eficacy were good or satisfactory, exept to V. polita and D. consolida. These results sugest that all applied herbicides could be successful in broad leaves weed control in the winter wheat crop in the Juzni Banat region.

eng English

2021 ◽  
Vol 27 (1) ◽  
pp. 67-78
Author(s):  
IMTIAZ KHAN Khan
Keyword(s):  
Plant Height ◽  
Chenopodium Album ◽  
Wheat Variety ◽  
Climatic Conditions ◽  
Grain Weight ◽  
Convolvulus Arvensis ◽  
Rumex Crispus ◽  
Wheat Field ◽  
Biological Yield ◽  
1000 Grain Weight

A field experiment was conducted at the new developmental farm, the University of Agriculture Peshawar during rabi season 2016-17. A wheat variety Ata Habib was selected to be investigated to check its performance by adopting methods of sowing and mixed tank herbicides application. The experiment was arranged in split plot with randomized complete block (RCB) design and 4 replications to reduce the error of the results. For practical adaptation of the experiment, the sowing methods were presented as the main plots, while tank mixed herbicides were kept in the sub-plots to get good prominent results for possible positive differences among the treatments. The sub-plot size measured as 1.5 X 3 m while row to row distance was kept 30 cm. Data were recorded on weed density m-2, fresh and dry weed biomass (kg) , plant height (cm), spike length (cm), leaf area (cm) , number of tillers (m-2) , Number of grains spike-1, 1000 grain weight (g), biological yield (kg ha-1), and grain yield (kg ha-1), Harvest index (%). These data parameters were formally observed with great care to avoid any repetition or error of the data. Few noxious weeds were observed and recorded in the field viz. Avena fatua, Anagallis arvensis, Euphorbia helioscopia, Phalaris minor, Poa annua, Medicago denticulata, Convolvulus arvensis, Coronopus didymus, Fumaria polymorpha, Melilotus parviflora, Chenopodium album and Rumex crispus. The obtained results indicated that sowing methods were statistically significant for plant height, grains spike-1, 1000-grain weight and biological yield that showed a clear effectiveness of the recorded data parameters. In addition to this, herbicides applications were also were also statistically significant for all the parameters except grains spike-1, while the interaction of sowing methods and herbicides application were also non-significant. In sowing methods, line sowing provided satisfactory results. As general understandings various weeds were managed significantly through tank mixed herbicide applications with a ratio of 60-72% for broad leaf and grassy weeds respectively. Consequently the instant results provided 54% increased yield compared to the untreated treatments. Hence it is concluded that , line sowing in combination with tank mixed herbicides are more suitable for management of weeds in the wheat field and increased yield in the agro climatic conditions of Peshawar-Pakistan.

Віталітетна структура популяцій деяких видів бур’янів у посівах зернових культур

2010 ◽  
Vol 19 (1) ◽  
pp. 123-129 ◽  
Author(s):  
E. M. Tikhonova
Keyword(s):  
Cirsium Arvense ◽  
Setaria Glauca ◽  
Sonchus Arvensis

Досліджено особливості розвитку популяцій сегетальних видів (Cirsium arvense (L.) Scop., Sonchus arvensis L., Melandium album (Mill.) Garke, Setaria glauca (L.) Beauv., Fallopia convolvulus (L.) А. Lоve) у посівах зернових культур (пшениці озимої, жита, ячменю, гречки, гороху), які не оброблялися гербіцидами у господарствах лісостепової зони на території Сумської області. 

WEEDS IN POTATO CULTURE AND THEIR OUTCOME IN SPREADING OF Alternaria spp.

2018 ◽  
Vol 17 (6) ◽  
pp. 159-166
Author(s):  
Halina Kurzawińska ◽  
Stanisław Mazur ◽  
Małgorzata Nadziakiewicz ◽  
Jacek Nawrocki
Keyword(s):  
Chenopodium Album ◽  
Potato Cultivar ◽  
Cirsium Arvense ◽  
Potato Plants ◽  
Potato Culture ◽  
Rapd Pcr ◽  
Microscopic Features ◽  
Weed Infestation ◽  
Pcr Method ◽  
Potato Crops

The aim of this study was to determine whether the weeds accompanying potato crops can be a source of Alternaria spp. causing Alternaria leaf blight and to determine the genetic similarities of Alternaria alternata isolates infecting selected weeds: Chenopodium album, Cirsium arvense and tested potato cultivar. Three-year field experiment was conducted on the potato cultivar ‘Vineta N’. The isolates were classified into different species on the basis of macro- and microscopic features. In each year of the study, A. alternata dominated among the isolated fungi colonizing the leaves of potato plants and the selected weeds. The genetic similarities of A. alternata isolates was determined by the RAPD-PCR method. Tested genetic forms of A. alternata were closely related; only small differences in the pattern of the separated amplification products was evidenced. The dominance of A. alternata on the weeds accompanying potato crops suggests that if weed infestation is extensive, the pathogen is very likely to spread and its population to increase.

Absorption, Translocation, and Foliar Activity of Clopyralid and Chlorsulfuron in Canada Thistle (Cirsium arvense) and Perennial Sowthistle (Sonchus arvensis)

Weed Science ◽  
1985 ◽  
Vol 33 (4) ◽  
pp. 524-530 ◽  
Author(s):  
Malcolm D. Devine ◽  
William H. Vanden Born
Keyword(s):  
Cirsium Arvense ◽  
Canada Thistle ◽  
Similar Treatment ◽  
Sonchus Arvensis ◽  
Root Buds

Both14C-clopyralid (3,6-dichloropicolinic acid) and14C-chlorsulfuron {2-chloro-N-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]benzensulfonamide} were readily absorbed by Canada thistle [Cirsium arvense(L.) Scop. ♯ CIRAR] leaves, with 99 and 75%, respectively, of the applied doses absorbed 144 h after application. Absorbed14C-clopyralid was rapidly exported from the treated leaves, whereas14C-chlorsulfuron was translocated much more slowly. After 144 h, 29% of the applied14C-clopyralid and 5% of the applied14C-chlorsulfuron were recovered in the roots and developing root buds of Canada thistle plants. Smaller amounts of the two herbicides were absorbed and translocated in perennial sowthistle (Sonchus arvensisL. ♯ SONAR) than in Canada thistle. More14C-clopyralid than14C-chlorsulfuron was absorbed and translocated out of treated leaves of perennial sowthistle, but equal amounts, 3 to 4% of the applied doses, were recovered in the roots and root buds 144 h after application. Foliar applications of clopyralid, followed by removal of the treated shoot 24, 72, or 144 h after application, markedly reduced shoot regrowth in both Canada thistle and perennial sowthistle. Similar treatment with chlorsulfuron did not prevent shoot regrowth in either species.

scholarly journals EXAMINATION OF THE WEED FLORA OF RUDER HABITATS AND THE POSSIBILITY OF SUPPRESSION WITH HERBICIDES

2018 ◽  
Vol 6 (4) ◽  
pp. 329-332
Author(s):  
Milić Vojinović ◽  
Jelica Živić ◽  
Sanja Perić ◽  
Miroljub Aksić
Keyword(s):  
Chenopodium Album ◽  
Working Environment ◽  
Xanthium Strumarium ◽  
Weed Species ◽  
Construction Sites ◽  
Convolvulus Arvensis ◽  
Human Settlements ◽  
Time Of Application ◽  
Vegetation Complex ◽  
Selection Of

Ruderal flora, as well as the vegetation that flora forms, represent an extremely dynamic floristic-vegetation complex and arean integral part of the most immediate living and working environment of human. It is formed and developed mainly in human settlements, as well as in the other anthropogenic environments that are occasionally or permanently under direct or indirect influence of various forms of human activity. Ruderal vegetation is found not only directly around the settlements, but also around all urban and accompanying facilities: along roads, paths and fences around houses, yards, walls and roofs, in avenues, on ruins, construction sites, landfills, along railway tracks, road and defense embankments, on wet and nitrified banks of rivers, near human settlements, in abandoned lawns, on the street walks with sandy areas, cemeteries, in degraded pastures, forests, etc. This essay presents the distribution and representation of economically harmful, invasive and quarantine weed species (Abutilon theophrasti, Agropyrumrepens, Amaranthusretroflexus, Calystegiasepium, Cirsiumarvense, Chenopodium album, Chenopodiumhybridum, Convolvulus arvensis, Cynodondactylon, Daturastramonium, Sonchusarvensis, Sorghum halepense, Xanthium strumarium…) at ten sites in the Nisava district. The assessment of species representation was done in two shootings (May and August) according to scale 1-4. The proper selection of herbicides depends, in a large extent, on the presence of dominant weed species and on the time of application.

scholarly journals Revisión de la lista de malezas cuarentenarias de Ecuador

2015 ◽  
pp. 58
Author(s):  
Ricardo Labrada
Keyword(s):  
Cirsium Arvense ◽  
Orobanche Crenata ◽  
Convolvulus Arvensis ◽  
Lolium Temulentum ◽  
Thlaspi Arvense ◽  
Palabras Clave ◽  
Orobanche Ramosa ◽  
Phelipanche Ramosa ◽  
Solanum Elaeagnifolium

Se describe el concepto de plaga cuarentenaria, análisis de riesgo de plagas y otros aspectos para evitar el ingreso de plantas exóticas en Ecuador. Exhaustivamente se revisó el listado vigente de malezas cuarentenarias, de un total de 33 plantas. Existen especies objeto de vigilancia, cuya ausencia se debe verificar en áreas donde más probablemente puedan establecerse, como: Acanthospermum hispidum, Cirsium arvense, Xanthium cavanillesii, Thlaspi arvense, Convolvulus arvensis, Cucurbita andreana, Bromus unioloides y Solanum elaeagnifolium. Lolium temulentum debe ser omitida, por estar ya reportada su presencia. En la lista de cuarentena se deben incluir nombres de género y especie. Las especies de la familia Orobanchaceae a incluir en la lista son Phelipanche ramosa (otrora Orobanche ramosa) y Orobanche crenata. Igualmente se recomienda incluir Thlaspi arvense por ser la maleza más común de su género. Los nombres de las plantas deben ser actualizados para evitar confusiones en las especificaciones que se les den a los exportadores. Palabras clave: Maleza, cuarentena, Análisis de riesgo

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