Search Results - "Renner, Karen A."

Technology adoption and weed emergence dynamics: social ecological modeling for maize-legume systems across Africa by Silberg, Timothy, Richardson, Robert, Borges, Cosme, Schmitt Olabisi, Laura, Lopez, Maria Claudia, Grisotti, Marcia, Chimonyo, Vimbayi, Basso, Bruno, Renner, Karen

“…Ecological practices such as intercropping maize (Zea mays) with cowpea (Vigna unguiculata L.) have been promoted to combat parasitic weeds like Striga (Striga…”
Get full text

Feeding Preferences of Weed Seed Predators and Effect on Weed Emergence by White, Sharon S, Renner, Karen A, Menalled, Fabian D, Landis, Douglas A

“…We determined feeding preferences of invertebrate seed predators and the effect of seed predation on weed emergence. Feeding choice studies were completed with…”
Get full text

Effect of Soybean Row Width and Population on Weeds, Crop Yield, and Economic Return by Harder, Dana B, Sprague, Christy L, Renner, Karen A

“…Field studies were conducted in 2004 and 2005 to determine the effect of soybean row width and population on weeds, canopy closure, crop yield, and economic…”
Get full text

Effects of fall-planted cereal cover-crop termination time on glyphosate-resistant horseweed (Conyza canadensis) suppression by Schramski, John A., Sprague, Christy L., Renner, Karen A.

“…Integrated strategies for management of glyphosate-resistant (GR) horseweed are needed to reduce reliance on herbicides. Planting a cover crop after corn or…”
Get full text

Influence of Seed Depth and Pathogens on Fatal Germination of Velvetleaf (Abutilon theophrasti) and Giant Foxtail (Setaria faberi) by Davis, Adam S, Renner, Karen A

“…Fatal germination of weed seeds occurs when a weed seed germinates, but the seedling dies before reaching the soil surface. Controlled-environment bioassays of…”
Get full text

Integrating fall-planted cereal cover crops and preplant herbicides for glyphosate-resistant horseweed (Conyza canadensis) management in soybean by Schramski, John A., Sprague, Christy L., Renner, Karen A.

“…Glyphosate-resistant horseweed is difficult to manage in no-tillage crop production fields and new strategies are needed. Cover crops may provide an additional…”
Get full text

Interseeded annual ryegrass, oilseed radish, and crimson clover tolerance to residual herbicides commonly used in corn by Brooker, Aaron P, Sprague, Christy L, Renner, Karen A

“…Cover cropping is limited by seasonal constraints following corn harvest in the Upper Midwest of the United States. Grass, clover, and brassica cover crops can…”
Get full text

Row Spacing and Seeding Rate Effects on Eastern Black Nightshade (Solanum Ptycanthum) and Soybean by Rich, Adrienne M, Renner, Karen A

“…Reducing seeding rates in 19- or 76-cm row soybean below the optimum rate may reduce soybean competitiveness with weeds, and indirectly increase production…”
Get full text

Tillage and Cover Crop Effects on Weed Seed Persistence: Do Light Exposure and Fungal Pathogens Play a Role? by Frost, Markah D., Haramoto, Erin R., Renner, Karen A., Brainard, Daniel C.

“…In a series of seed burial studies, we tested the hypothesis that reduced tillage and cereal rye (Secale cereale L.) cover cropping influence seed persistence…”
Get full text

Effect of Fertilizer Nitrogen on Weed Emergence and Growth by Sweeney, Amy E., Renner, Karen A., Laboski, Carrie, Davis, Adam

“…The timing of nitrogen (N) fertilizer application may influence germination, emergence, and competitiveness of weeds. Research was conducted to determine the…”
Get full text

Cover Crop Impact on Weed Dynamics in an Organic Dry Bean System by Hill, Erin C, Renner, Karen A, Sprague, Christy L, Davis, Adam S

“…Weed suppression is one possible benefit of including cover crops in crop rotations. The late spring planting date of dry beans allows for more growth of cover…”
Get full text

Effect of glyphosate application timing and row spacing on corn (Zea mays) and soybean (Glycine max) yields by Dalley, C.D, Kells, J.J, Renner, K.A

“…Corn and soybean were planted in narrow and wide row spacings to determine the effect of glyphosate application timing and row spacing on crop yield…”
Get full text

Chemical and Physical Defense of Weed Seeds in Relation to Soil Seedbank Persistence by Davis, Adam S., Schutte, Brian J., Iannuzzi, James, Renner, Karen A.

“…Effective weed seedbank management requires mechanistic understanding of ecological determinants of seed persistence in the soil seedbank. Chemical and…”
Get full text

Effect of glyphosate application timing and row spacing on weed growth in corn (Zea mays) and soybean (Glycine max) by Dalley, C.D, Kells, J.J, Renner, K.A

“…Corn and soybean were planted in narrow- and wide-row spacings to study the effects of glyphosate application timing and row spacing on light interception and…”
Get full text

Henbit (Lamium amplexicaule), Common Chickweed (Stellaria media), Shepherd's-Purse (Capsella bursa-pastoris), and Field Pennycress (Thlaspi arvense): Fecundity, Seed Dispersal, Dormancy, and Emergence by Hill, Erin C., Renner, Karen A., Sprague, Christy L.

“…Winter annual weeds protect the soil from erosion and retain nutrients during the winter; however, they can also act as a host for crop pests and pathogens and…”
Get full text

Effect of herbicides on weed control and sugarbeet (Beta vulgaris) yield and quality by Dale, T.M, Renner, K.A, Kravchenko, A.N

“…The "micro-rate" application, a POST combination of desmedipham plus phenmedipham at 0.045 + 0.045 kg ai/ha (desphen) or desmedipham plus phenmedipham plus…”
Get full text

Late-Season Weed Management to Stop Viable Weed Seed Production by Hill, Erin C, Renner, Karen A, VanGessel, Mark J, Bellinder, Robin R, Scott, Barbara A

“…Integrated weed management (IWM) for agronomic and vegetable production systems utilizes all available options to effectively manage weeds. Late-season weed…”
Get full text

Glyphosate-resistant soybean management system effect on Sclerotinia stem rot by Lee, C.D, Renner, K.A, Penner, D, Hammerschmidt, R, Kelly, J.D

“…The impact of the management variables soybean cultivar, row spacing, population density, and shading was evaluated on the incidence of Sclerotinia stem rot…”
Get full text

Annual Postdispersal Weed Seed Predation in Contrasting Field Environments by Davis, Adam S., Taylor, Erin C., Haramoto, Erin R., Renner, Karen A.

“…Interest in weed seed predation as an ecological weed management tactic has led to a growing number of investigations of agronomic and environmental effects on…”
Get full text

Weed seedbank and community shifts in a long-term cropping systems experiment by Davis, Adam S., Renner, Karen A., Gross, Katherine L.

“…Characterizing the long-term effect of agricultural management systems on weed communities will aid in developing sustainable weed management practices. Weed…”
Get full text