Improving the Level and Consistency of Glyphosate-Resistant Canada Fleabane (Erigeron canadensis L.) Control With Bromoxynil-Based Tankmixes Applied Preplant to Soybean

Glyphosate-resistant (GR) Canada fleabane (Erigeron canadensis L.) is a problematic weed in soybean. Bromoxynil-based tankmixes provide control of GR Canada fleabane in monocot crops; however, there is limited research on preplant (PP) applications in soybean. The objective of this study was to determine the best third tankmix partner with glyphosate plus bromoxynil applied PP to improve the level and consistency of GR Canada fleabane control in soybean. Four field trials were conducted over a two-year (2020, 2021) period. Glyphosate plus bromoxynil controlled GR Canada fleabane 52, 58, and 69% at 2, 4, and 8 weeks after application (WAA) respectively. The addition of saflufenacil to glyphosate plus bromoxynil improved GR Canada fleabane control 39% at 2 WAA and the addition of dicamba to glyphosate plus bromoxynil improved GR Canada fleabane control 39 and 29% at 4 and 8 WAA, respectively. The addition of bromoxynil to glyphosate plus 2,4-D ester or dicamba improved GR Canada fleabane control by 36 and 35%, respectively, at 2 WAA. The addition of bromoxynil to glyphosate plus tiafenacil or pyraflufen-ethyl/2,4-D improved GR Canada fleabane control by 19% at 8 WAA. The addition of bromoxynil to glyphosate plus metribuzin improved GR Canada fleabane control 31, 32, and 36% at 2, 4, and 8 WAA, respectively. Antagonism was observed between bromoxynil plus glyphosate plus tiafenacil or halauxifen-methyl 8 WAA, while the interaction between bromoxynil plus glyphosate plus pyraflufen-ethyl/2,4-D was considered synergistic. The addition of metribuzin, tiafenacil, pyraflufen-ethyl/2,4-D, 2,4-D ester, halauxifen-methyl, saflufenacil or dicamba to glyphosate plus bromoxynil improved the consistency of GR Canada fleabane at 2, 4, and 8 WAA. This study concludes that the addition of saflufenacil or dicamba to glyphosate plus bromoxynil can improve the level and consistency of GR Canada fleabane control applied PP to soybean.

Determination of Phytoextraction and Hyperaccumulating Capacity of Artemisa Dracunculus L and Erigeron Canadensis Plants of The Asteraceae Family.

One of its key aspects is the performance of plant extraction, the end-use of by-products and the recognition of its overall economic viability. Overall, phytoextraction seems to be a very promising technology for the removal of metallic pollutants from the environment and is being commercialized. In genetic engineering, support for the current plant phytoremedetion list plays a major role. Because it makes it possible to insert which genes in genetically modified plants the plant to metabolize a specific pollutant. In the sequence to be used for phytoremediation. In Turkey, the steel industry and its subindustries operate intensively in Karabuk province. It is located in the western region of the Black Sea and grew rapidly. For this reason, plants that grow in areas and soil samples around their roots are with anthropogenic pollution were taken in connection with the steel industry and the building industry where the waste is discharged. For guidance, samples of plants and soils of the same species were collected from orchards where industrial pollution and agricultural activity have not occurred, in order to worth comparing them. Thus, the properties of the hyperaccumulator and accumulation were investigated. These are Artemisa Dracunculus L (AD) and Erigeron Canadensis (EC) in the Asteraceae family. As the BAF shoot values of the AD plant are Pb and Se > 1, this is an accumulator plant for Pb and Se. At the EC plant, this is an accumulator for Pb, as only Pb>1. Since Cr, Hg, Sn and Cl <1, these elements are presumed to be exclusionary. Also, the two plants can be classified as potentially Ni-hyperaccumulatory plants because Ni is greater than 10 (Ni>10). BAF root of both plants has high phytostabilization capacity for CD from CD>1. The concentrations of Cd TF >1 in the leaf, stem and root indicate high phytoextraction efficiency and it can be said that it will exhibit high activity in soils contaminated by the CD. In addition, due to the fact that the Cd concentrations of both plants are close to the hyperaccumulator plant BAF, studies can be carried out to evaluate them as Cd-hyperaccumulator plant in future studies.

Annual weedy species of Erigeron in the northern Iberian Peninsula: a review

A revision of the alien Erigeron L. species formerly included in Conyza Less. found in the central-northern Iberian Peninsula is presented. A close examination of numerous specimens collected by the authors as well as voucher specimens preserved at several herbaria has helped clarify several aspects regarding this group. Four species have been recognised in the study area: Erigeron canadensis (=Conyza canadensis), E. bonariensis (=C. bonariensis), E. sumatrensis (=C. sumatrensis) and E. floribundus (=C. floribunda, including C. bilbaoana). They occupy anthropogenic habitats, such as road edges, abandoned fields, crops and waste ground, as well as natural and semi-natural communities, such as nitrophilous river bar communities and ruderal communities on coastal dunes subjected to substantial levels of anthropogenic disturbance. Erigeron sumatrensis and E. floribundus emerge as the two most frequent taxa. Erigeron canadensis, regarded in the past as the most widespread species of the group, is almost absent from the study area, especially from the Atlantic watershed. Furthermore, an important number of specimens previously identified as E. bonariensis do actually correspond to E. sumatrensis. No hybrids have been found. A detailed identification key highlighting the main features that help to separate the four Erigeron species is presented. Finally, as E. floribundus is the most controversial species in the group and the last to arrive, a study of its expansion across western Europe in the last century is included, where it has become a frequent alien especially along the Atlantic regions.

Edible wild and acclimatized plants of Pavlodar region

In Pavlodar region and neighbouring northern regions of Kazakhstan the authors revealed more than 1,5 hundreds wild plants (aboriginal and acclimatized) which may be used as the surrogates of traditional food-stuffs. All the plants recommended for the cooking of food or drinks were distributed among the next groups. 1. Plants with edible green parts and organs as the substitutes of salad green vegetables. 2. Plants with starch and protein parts as the basic source of nutritiousness. 3. Fruit and berry wild plants, origins of dessert courses and potential sugar surrogates. 4. Herbal raw materials for the drinks (fruits, overhead and underground vegetative plants). 5. Spicy wild plants (including new plant species proposed by the authors for this purpose firstly, which earlier didn’t used by this way). Using of weed plant Erigeron Canadensis as the surrogate of pepper and using of linden flower for the coagulation of milk casein and preparing of fermented milk drinks were elaborated by authors and defended by invention patents of Kazakhstan Republic.

Flora of the Trans-siberian railway and its correlation with the characteristics of natural biomes on the Eastern European plain

Проведена инвентаризация чужеродных и аборигенных растений на участках Транссибирской магистрали, проходящих по территории Восточно-Европейской равнины. Изучены северная ветка (Киров - Кострома - Ярославль - Москва) и центральная ветка (Киров - Нижний Новгород - Владимир - Москва). Выявляли корреляцию между характеристиками естественных биомов и основными флористическими показателями. Исследовано 15 железнодорожных станций в 5 областях, расположенных в трех естественных биомах. На каждом участке закладывали площадки размером 100 м2 в трех различных экотопах: на железнодорожном полотне, на откосах и на подошве железнодорожной насыпи в начале полосы отчуждения (в основном, это были дренажные канавы), всего составлено 61 геоботаническое описание. Выявлено 265 видов сосудистых растений (28 древесных растений, 135 поликарпических трав и 102 вида монокарпических трав). Объем флоры участков Транссибирской магистрали положительно коррелирует с общим числом видов сосудистых растений, зарегистрированных в биоме: самое высокое число как древесных, так и травянистых видов, причем и на полотне железной дороги, и по откосам, отмечено на участках, проходящих через Смоленско-Приволжский широколиственно-хвойнолесной биом. По снижению числа зарегистрированных видов растений экотопы железной дороги располагаются в ряду: откосы железной дороги → полотно железной дороги → дренажные канавы. Согласно коэффициенту Съеренсена, наиболее высокое сходство наблюдается между флорой откосов (53%), ниже сходство локальных флор железнодорожного полотна (44%), и очень низкое (20%) сходство флор дренажных канав. Только 6 видов встречаются во всех трех биомах, причем все они являются чужеродными инвазионными видами, а 4 из них (Acer negundo, Amaranthus retroflexus, Erigeron canadensis, Epilobium adenocaulon) входят в ТОР-100 самых опасных инвазионных видов России. Транссибирская магистраль служит как реципиентом чужеродных видов, «сбегающих» на нее из населенных пунктов, так и основным вектором их дальнейшего расселения по транспортному коридору. Inventory of alien and native plants was carried out on the segments of the Trans-Siberian Railway, passing through the territory of the East European Plain. The Northern Branch of the Railway (Kirov - Kostroma - Yaroslavl - Moscow) and the Central Branch of the Railway (Kirov - Nizhny Novgorod - Vladimir - Moscow) were studied. We revealed a correlation between the characteristics of natural biomes and the main floristic indices. We studied 15 railway stations in five regions located in three natural biomes. At each site, we laid 100 m2 plots in three different ecotopes: on the railroad bed, on slopes and in the railroad embankment outsole (mainly infiltration ditch). A total of 61 geobotanical descriptions were compiled. 265 species of vascular plants were detected (28 woody plants, 135 polycarpical herbs and 102 species of monocarpical herbs). Plant’s number in the Trans-Siberian Railway positively correlates with the total number of vascular plant species recorded in the biomes: the highest number of both woody and herbaceous species, and both on the railroad bed and on the slopes, is noted in segments passing through the Smolensk-Privolzhsky biome. In terms of reducing the number of plant species, the ecotopes of the railway located in the following range: slopes of the railway → railroad bed → infiltration ditch. According to the Sørensen's similarity coefficient, the highest similarity is observed between the flora of slopes (53%), similarity of local flora of the railway bed is lower (44%), and very low (20%) similarity of flora is noted for infiltration ditch. Only 6 species are found in all three biomes, all of them being alien invasive species, and 4 of them (Acer negundo, Amaranthus retroflexus, Erigeron canadensis, Epilobium adenocaulon) are among the TOP-100 the most dangerous invasive species in Russia. The Trans-Siberian Railway serves both as a recipient of alien species "escaping" from settlements and as a main vector for their further dispersal along the transport corridor.

The Study of Erigeron Canadensis in the treatment of Dengue

From centuries there are many species of plants and animals which have been discovered and are used in the treatment of some or the other disease for serving mankind. Similar to this another specie of a plant was also discovered and was used to treat more than one kind of disease named Erigeron Canadensis. It was found that it is affect full in treating a disease named dengue (CDC). It is a plant whose parts grow above the ground usually used for medicines. People use it for many medication purposes but there is no good scientific evidence to support these uses. It was predicted that it may be useful in dengue prevention used in mosquito repellents or for other factors but still there is n’t enough information known about Erigeron canadensis to know how it might work. The use of Erigeron, Canadensis is mostly in urban or local areas worldwide as it is one of the prevention method from dengue.