Light availability has a profound effect on plant growth and development. One of the ways to study the effects of light intensity on plant growth and development without the confounding problem of photosynthate availability is sucrose injection/supplementation. A greenhouse experiment was conducted to evaluate the effects of light levels (0% and 75% shade) and sucrose injection (distilled water...

PPO-inhibiting herbicides in combination with glyphosate for postemergence applications is a common approach to manage glyphosate- and ALS-inhibitor-resistant weeds. PPO-inhibitors can reduce translocation when applied tank-mixtures, but adjuvants may be used overcome this effect. Additionally, optimal droplet size affected by tank-mixtures of different it crucial herbicide efficacy. Field gree...

Abstract Weed control in corn is a major challenge due to increasing problems with highly dominant weed species and herbicide resistance evolution. Common lambsquarters johnsongrass constitute up 80% 90% of the population many spring crops, such as soybean [ Glycine max (L.) Merr.], sunflower ( Helianthus annuus L.), corn, Serbia. Currently, acetolactate synthase–inhibiting herbicides, systemic...

Abstract Tolpyralate is commonly mixed with atrazine for improved control of common annual weed species in corn production systems the United States and Canada. Weed efficacy this mixture enhanced addition methylated seed oil (MSO) Concentrate®; however, there little information on tolpyralate + other proprietary adjuvants. Therefore, four trials were conducted at field research sites Ontario, ...

Essential oils produced by plants, and their components, could be sources of new natural herbicidal compounds. Thirteen extracted from six wild Lamiaceae species (namely Clinopodium suaveolens (Sm.) Kuntze, Satureja montana L. subsp. montana, Thymbra capitata (L.) Cav., Salvia fruticosa Mill. thomasii (Lacaita) Brullo, Guglielmo, Pavone & Terrasi, cuneifolia Ten., Thymus spinulosus Ten.) So...

Abstract Macronutrient inputs to annual cropping systems can benefit weeds as well crops, sometimes decreasing or eliminating the benefits of fertilization. This interaction between fertility management and integrated weed is becoming increasingly important these fields increase their focus on efficiency prevention, respectively. The risk increased competition reflects fact that biomass height ...

Evaluation of the viable seeds in a soil, otherwise known as the seed pool or seed bank, is a crucial component of many weed dynamic and plant ecology studies. Seed bank estimation is used to predict the possibility of future weed infestations in rangelands as well as the nascent native plant diversity within them. However, there is no standardized method of reporting seed bank evaluation techn...

Soltani, N., Vyn, R. J., Van Eerd, L. L., Shropshire, C. and Sikkema, P. H. 2009. Effect of reduced herbicide rates on weed control, environmental impact and profitability of corn. Can. J. Plant Sci. 89: 969 975. A study was conducted over a 3-yr period (2003, 2004, and 2005) to evaluate the effect of reduced herbicide rates 20, 40, 60, 80, and 100% of the manufacturer’s recommended rate (MRR) ...