Bekämpfung von Beifußblättriger Ambrosie (Ambrosia artemisiifolia L.) in Mais, Getreide, Grünland und Nichtkulturland mit Herbiziden

• Main Authors: Meinlschmidt, Ewa, Schröder, Gerhard, Ullrich, Monique
• Format: Article
• Language: deu
• Published: Julius Kühn-Institut 2014-07-01
• Series: Julius-Kühn-Archiv
• Subjects: agricultural crops; chemical control; efficacy; field trial
• Online Access: http://pub.jki.bund.de/index.php/JKA/article/view/3090
• ISSN: 1868-9892; 1868-9892

In Brandenburg and Saxony numerous locations of Ambrosia artemisiifolia of low density have been reported. Furthermore there are, especially in the state Brandenburg, agricultural areas with a high density of A. artemisiifolia. Field trials in different agricultural crops and in non-crop areas were conducted in 2007 - 2009 to control A. artemisiifolia in its natural population. Leaf- and soil active herbicides were tested according to current agricultural practice. It was recorded, that germination of A. artemisiifolia occurred in 2 or 3 distinct periods. The herbicide treatments in maize were carried out at 1 - 6 leaf stage and between heights of 1 – 15 cm of A. artemisiifolia. The herbicides Calaris (mesotrione + terbuthylazin), Clio Star (topramezone + dicamba), Laudis (tembotrione), Clio (topramezone), Effigo (picloram + clopyralid), Callisto (mesotrione) and Arrat (dicamba + tritosulfuron) achieved an efficacy of up to 100 %. MaisTer Flüssig (foramsulfuron + iodosulfuron) achieved an efficacy of 50 %. Cato (rimsulfuron) was not effective against A. artemisiifolia. The herbicides Ariane C (clopyralid + fluroxypyr + florasulam) und Amario (clopyralid + fluroxypyr + MCPA) achieved an efficacy of 100 % in cereals. Banvel M (MCPA + dicamba) and Simplex (fluroxypyr + aminopyralid) controlled A. artemisiifolia well in grassland. Non-selective active substances like glyphosate and glufosinate are appropriate to control A. artemisiifolia in non-crop areas. The herbicide treatments in cereals and non-crop areas were carried out at 1 - 32 leaf stage between heights of 1 - 25 cm of A. artemisiifolia. Organic farming shows a reduction of A. artemisiifolia taking adequate agricultural measures. However further spread of A. artemisiifolia cannot be prevented in organic farming.