VelcheVa, I., S. PetroVa, I. MolloV, G. GecheVa and D. GeorGIeV, 2012. Herbicides influence the community structure of the soil mezofauna. Bulg. J. Agric. Sci., 18: 742-748 A field bioassay was carried out to assess the impact of “NIRVANA” (active substances imazamox and pendimethalin) and “STOMP 330 EC” (active substance pendimethalin) herbicides residues to the soil mezofauna. The investigate...

Clopyralid and imazamox are successfully used for weed control during the first years of regeneration pedunculate oak forests. Hence, question that arises is how these herbicides affect microorganisms, especially activity dehydrogenase enzyme, when they reach soil. Two study sites were selected in regenerated forests, two applied doses (clopyralid, 100 g a.i. ha−1 120 ha−1; imazamox, 40 48 ha−1...

Papaver rhoeas biotypes displaying multiple herbicide resistance to ALS inhibitors and synthetic auxin herbicides (SAH) are spreading across Europe. In Spain, enhanced metabolism imazamox was confirmed in one population, while cytochrome-P450 (P450) based 2,4-D another two. The objectives of this research were further confirm the presence P450 mediated and, if so, whether a putative common is r...

Parrotfeather ( Myriophyllum aquaticum (Vell. Verdc) is an invasive aquatic plant to the United States that is native to South America. Myriophyllum aquaticum is described as “stout, stems moderately elongate, partially submersed but with portions of leafy branches emersed (Godfrey and Wooten 1981). Emergent leaves are whorled, stiff, usually with 20 or more linear filiform divisions, appearing...

Smallflower umbrella sedge is an increasingly problematic weed in direct-seeded rice in Arkansas. Recently, a sample collected from an Arkansas rice field was confirmed resistant to halosulfuron (Permit). Studies were conducted to determine the effectiveness of various acetolactate synthase (ALS)-inhibiting herbicides on control of the resistant biotype relative to a susceptible biotype and to ...