seed treatment Articles
-
Neonicotinoid insecticide residues in soil dust and associated parent soil in fields with a history of seed treatment use on crops in Southwestern Ontario
Using neonicotinoid insecticides as seed treatments is a common practice in field crop production. Exposure of non‐target organisms to neonicotinoids present in various environmental matrices is debated. Concentrations of neonicotinoid residues were measured in the top 5 cm of soil and overlying soil surface dust before planting in 25 commercial fields with a history of neonicotinoid seed ...
-
Clothianidin in agricultural soils and uptake into corn pollen and canola nectar after multi‐year seed treatment applications
Limited data are available on the fate of clothianidin under realistic agricultural production conditions. This is the first large‐scale assessment of clothianidin residues in soil and bee‐relevant matrices from corn and canola fields after multiple years of seed‐treatment use. The average soil concentration from 50 Midwest US corn fields with 2 to 11 years of planting clothianidin‐treated ...
-
Arbuscular mycorrhizal colonization response to three seed-applied fungicides
In soybean [Glycine max (L.) Merr.], arbuscular mycorrhizae (AM) enhance nutrient and water status and may increase root resistance to soilborne pathogens. However, the fungicides that are routinely applied to the seed may reduce AM colonization, reducing these benefits. Thus, the objective of this research was to assess the effect of three commonly used seed-applied fungicides on AM colonization ...
-
Comparison of certified and farm-saved seed on yield and quality characteristics of Canola
Relatively high seed prices and low canola (Brassica napus L.) grain prices created a controversy over using farm-saved seed from hybrids. Agronomic implications of saving seed from a canola crop were investigated by planting certified seed and saved-seed of an open-pollinated and a hybrid canola cultivar at eight site-years in Saskatchewan and Alberta, Canada. In one series of experiments ...
-
EPA Sued Over Guidance Classifying Seeds Coated with Neonicotinoid Insecticides as Treated Articles Exempt from Registration under FIFRA
On January 6, 2016, a complaint was filed against the U.S. Environmental Protection Agency (EPA) in the United States District Court for the Northern District of California by a coalition of U.S. beekeepers, farmers, and affiliated non-government organizations (Petitioners). The Petitioners allege that EPA has allowed “the ongoing sale and use of unregistered pesticide products” ...
-
Chemical-free disinfection of seeds for maximum yield
Seeds are the starting point for the majority of our food. Vegetables, cereals, fruits and many, many more products start as small seeds. It is no surprise that the seed market has kept growing over the past few years. In fact, the seed market is projected to grow even more, with a CARG of 3,4% from 2017 to 2023. Safe and delicate disinfection of seeds is a must in order to produce a healthy and ...
-
Emergence of polymer-coated corn and soybean influenced by tillage and sowing date
No tillage often delays soil warming and drying, thus sowing too early in the spring may compromise seed viability due to prolonged exposure to cold and wet soil in the northern Corn Belt. Coating seed with a temperature-activated polymer may circumvent the adverse effects of exposing seeds to cold and wet soil. Germination and emergence of noncoated and polymer-coated corn (Zea mays L.) and ...
-
EPA Releases Preliminary Risk Assessment for Neonicotinoid Insecticide Imidacloprid
On January 6, 2016, the U.S. Environmental Protection Agency (EPA), in collaboration with California’s Department of Pesticide Regulation (DPR) announced the release of a preliminary pollinator risk assessment for the neonicotinoid insecticide, imidacloprid (Preliminary Risk Assessment or Assessment). In its assessment, EPA states that imidacloprid potentially poses a risk to hives when the ...
-
What’s Happening to the Birds?
Following in Rachel Carson’s footsteps, a new generation of scientists investigates a new generation of pesticides. Christy Morrissey is driving her white pickup truck along Canada’s endless prairie highway, windows open, listening for birds. She points to the scatter of ponds glinting in the landscape, nestled among fields of canola that stretch as far as the eye can see. Formed by ...
By Ensia
-
Pod removal, shade, and defoliation effects on soybean yield, protein, and oil
Soybean [Glycine max (L.) Merr.] yield formation in field environments can be either source-limited or sink-limited, depending on the assimilatory capacity of the mother plant relative to the assimilate demands of the developing seeds. Our objective was to evaluate yield and seed quality relationships under source-limited and sink-limited conditions during the seed-filling period, as protein and ...
-
Effect of fungicide on soybean growth and yield
In response to rising input costs and narrowing profit margins, soybean [Glycine max (L.) Merr.] producers are continually looking for ways to increase soybean yield. One approach being promoted is the use of foliar fungicides, for both foliar pathogen control and nonfungicidal plant physiological effects. The objective of this field experiment was to evaluate a strobilurin and a triazole alone ...
-
Soybean seed yield and composition response to stand reduction at vegetative and reproductive stages
Soybean [Glycine max (L.) Merr.] producers across the United States are confronted with significant economic losses annually from hail. Plant injury and yield loss are associated with defoliation and node or stand loss due to bruising and breaking of plant stems from the hail. The correlation of yield loss and leaf defoliation is well defined; however, limited information exists relative to whole ...
-
The profitability and risk of long-term cropping systems featuring different rotations and nitrogen rates
Yield comparisons do not provide the appropriate basis for decision-making regarding cropping systems. The dominant factor influencing the adoption of cropping systems is economics. The objective of this 15-yr study was to evaluate the long-term effect of four N fertilization treatments on the economic returns of seven crop rotations in Wisconsin, based on annual market prices and production ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you