Green pigweed [Amaranthus powellii S.Wats.] is a prolific annual dicot weed that prominent of crop production in northeastern North America. interference has been documented to reduce corn yields up 54% the absence control strategies. In 2021, green biotype from field near Dresden, Ontario, Canada was determined be resistant MCPA, mecoprop, dichlorprop-p, aminocyclopyrachlor (synthetic auxins),...

nitrate toxicosis associated with consumption of pigweed red-root (amaranthus retroflexus) wasdiagnosed in a small herd of cattle in the suburb of mashhad, northeastern iran. the clinical signs wereruminal tympany, incoordination, tachycardia, dyspnea, head pressing, aggressive movements and jugulardistension. seven animals including 3 young calves and 4 cows died of intoxication; other affecte...

This study identified the most effective methods for protecting sunflowers from weeds through treatment of crops with herbicides Euro Lightning, Lightning Plus and Express. These options provided substantial protection such as cursed thistle, field bindweed, yellow bristle grass, mustard, frost blite redroot pigweed. In fight against ragweed, excellent action herbicide Express good results. Var...

in order to study the effects of co2 enrichment on growth and competitiveness of soybean (glycine max) and millet (panicum miliaceum) against redroot pigweed (amaranthus retroflexus) and lambsquarter (chenopodium albam) an experiment was conducted using two co2 concentrations (350 and 700 ppm). for evaluating effects of co2 variation on inter-and intra-specific competition plants were grown in ...

to study the effect of different weed control methods in tomato, an experiment was conducted as completely randomized block design with three replications at the research farm of university of tehran (karaj) in 2008. the treatments consisted of post emergence (at recommended rate) or pre emergence (reduced rate in combination with mulch) application of metribuzin, rimsulfuron and sulfosulfuron,...

in order to evaluate the efficiency of empirical competition models for simulation of sugar beet (beta vulgaris l.) yield at interference with redroot pigweed (amaranthus retroflexus l.), a factorial experiment based on randomized complete block design with three replications was carried out. factors were weed densities (d1=1, d2= 4, d3= 8, d4=12 and d5=16 plants m-1 of row) and relative time o...

Weeds compete with crops and are hard to differentiate identify due their similarities in color, shape, size. In this study, the weed species present sorghum (sorghum bicolor (L.) Moench) fields, such as amaranth (Amaranthus macrocarpus), pigweed (Portulaca oleracea), mallow (Malva sp.), nutgrass (Cyperus rotundus), liver seed grass (Urochoa panicoides), Bellive (Ipomea plebeian), were discrimi...

Anaerobic soil disinfestation (ASD) is a promising alternative to chemical fumigation for controlling soilborne plant pathogens and weeds. This study investigated the impact of brewer’s spent grain (BSG), locally available carbon source, on various weed species oomycete pathogen Pythium irregulare in ASD. Two greenhouse studies were conducted using BSG yeast at full reduced rates completely ran...