Life Sciences Commons^™

Integrating Weed-Suppressive Cotton Chromosome Substitution Lines And Cover Crops For Sustainable Weed Management In Cotton Production Systems., Alyssa Lea Miller

Theses and Dissertations

Weeds pose a challenge to cotton production, and herbicides have been the primary means of control. However, there is growing concern over weed resistance to herbicides. To address this issue, we evaluated three cover crop species and six cotton accessions for weed suppression. The study found that hairy vetch, wheat, and B16 cotton CS line effectively suppressed Amaranthus species, while MNTN 4-15, B16, hairy vetch, and wheat were correlated with the highest cotton yield. Cover crops were also analyzed for chlorogenic acid content, with wheat, MNTN 4-15, and hairy vetch producing the highest amounts. The greenhouse tray study showed that …

Challenges And Opportunities For Weed Control In Nebraska Popcorn, Ethann R. Barnes

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Weed control in popcorn is challenging with limited herbicide options and popcorn’s perceived sensitivity to herbicides. Understanding the impact of weeds maximizes yield and profit. New herbicide-resistant crops increase chances of drift or misapplication into popcorn, which doesn’t have herbicide-resistant traits. Herbicides that are labeled in popcorn are often only conditionally labeled with reduce rates, warnings, or limited popcorn types. Dent-sterility in popcorn is contingent on the Ga1 gene (Ga1-s), but this system is at risk from Ga1-m field corn introduced from Mexico because it overcomes dent-sterility. This risk is under-assessed as Ga1-m carriers are undocumented and Mexican germplasm usage …

Droplet Size Impact On Efficacy Of A Dicamba-Plus-Glyphosate Mixture, Thomas R. Butts, Chase A. Samples, Lucas X. Franca, Darrin M. Dodds, Daniel B. Reynolds, Jason W. Adams, Richard K. Zollinger, Kirk A. Howatt, Bradley K. Fritz, W. Clint Hoffmann, Joe D. Luck, Greg Kruger

West Central Research and Extension Center, North Platte

Chemical weed control remains a widely used component of integrated weed management strategies because of its cost-effectiveness and rapid removal of crop pests. Additionally, dicamba-plus-glyphosate mixtures are a commonly recommended herbicide combination to combat herbicide resistance, specifically in recently commercially released dicamba-tolerant soybean and cotton. However, increased spray drift concerns and antagonistic interactions require that the application process be optimized to maximize biological efficacy while minimizing environmental contamination potential. Field research was conducted in 2016, 2017, and 2018 across three locations (Mississippi, Nebraska, and North Dakota) for a total of six site-years. The objectives were to characterize the efficacy of …

Banded Herbicide Application In A Conventional Sunflower Production System, Ahmet Tansel Seri̇m, Ünal Asav, Süleyman Gürdal Türkseven, Ergi̇n Dursun

Turkish Journal of Agriculture and Forestry

Banded herbicide applications with hooded field sprayers (HFS) provide safer applications in many crops. The aim of this paper is to show the effectiveness and safeness of selective and nonselective herbicide applications in a conventional sunflower production system (CSPS) using a combined hooded field sprayer (CHFS). Glyphosate interrow and aclonifen or quizalofop-P-ethyl intrarow were applied in fields cropped with nonglyphosate-resistant sunflower varieties in Ankara, Tekirdağ, and Tokat Provinces of Turkey in 2015 and 2016. In Ankara and Tekirdağ, glyphosate caused limited injury to sunflower at 28 days after treatment (DAT), and aclonifen created transient phytotoxicity in 2015. Glyphosate was applied …

The Effect Of Three Different Mulches On Weed Presence, Soil Characteristics, And Zinnia Growth, Anmar Muttaleb

Murray State Theses and Dissertations

Abstract

Organic and inorganic mulching helps to control weeds. Mulching helps cultivated plants to grow by inhibiting the growth of weeds, retaining soil moisture, and regulating the temperature of soil. The objective of this study was to determine the effects of different organic mulches on weed presence, soil characteristics, and growth of Zinnia elegans. The mulches used in studying Zinnia elegans were wheat straw, non-shredded Miscanthus (M. × giganteus), and shredded Miscanthus (M. × giganteus) mulch. A Randomized Complete Block Design (RCBD) was used in the study, with different quantitative methods were used to …

2018 Update Mtg: Maximizing Your Weed Control, Hilary A. Sandler, Katherine Ghantous

Cranberry Station Extension meetings

No abstract provided.

2018 Update Mtg: Weed Control Update 2018, Katherine Ghantous, Hilary A. Sandler

Cranberry Station Extension meetings

No abstract provided.

Mulch And Groundcover Effects On Soil Temperature And Moisture, Surface Reflectance, Grapevine Water Potential, And Vineyard Weed Management, Christina M. Bavougian, Paul E. Read

Department of Agronomy and Horticulture: Faculty Publications

The objectives of this research were to identify alternatives to glyphosate for intra- row (under-trellis) vineyard floor management and to evaluate the potential for intra- row and inter-row (alleyway) groundcovers to reduce vegetative vigor of `Marquette' grapevines (Vitis spp.) in a southeast Nebraska vineyard. The experiment was a randomized factorial design with five intra-row treatments (crushed glass mulch [CG], distillers' grain mulch [DG], creeping red fescue [CRF], non-sprayed control [NSC], and glyphosate [GLY]) and three inter-row treatments (creeping red fescue [CRF], Kentucky bluegrass [KB], and resident vegetation [RV]). Treatments were established in 2010-2011 and measurements were conducted during 2012 …

Decision Support Software For Palmer Amaranth Weed Control, Karen Renee Lindsay

Graduate Theses and Dissertations

Herbicide-resistant Palmer amaranth [Amaranthus palmeri (S.) Wats.] has been identified as one of the most troublesome weeds, specifically for corn (Zea mays L.), cotton (Gossypium hirsutum L.), and soybean [Glycine max (L.) Merr.] producers in the southern United States. The use of herbicide technology remains the most widely used method of weed control, despite the evolution of herbicide-resistant Palmer amaranth. Therefore, a need currently exists for research and extension education to encourage the adoption of Integrated Pest Management (IPM) to address the problem of herbicide-resistant Palmer amaranth in the southern United States. By equipping crop producers, educators, and weed management …

Glyphosate-Resistant Weed Control And Soybean Injury In Response To Different Ppo-Inhibiting Herbicides, Jatinder S. Aulakh, P. S. Chahal, Amit J. Jhala

Department of Agronomy and Horticulture: Faculty Publications

In Nebraska, 5-enolpyruvyl shikimate-3-phosphate synthase (EPSPS) as well as acetolactate synthase (ALS)-inhibitor-resistant weeds occur in many soybean fields where herbicides from these modes-of-action have been frequently used in the past. Currently, the protoporphyrinogen oxidase (PPO)-inhibitors are the only effective herbicides for POST control of both glyphosate- and ALS-inhibitor-resistant weeds in soybean. Greenhouse experiments were conducted in 2014 to evaluate the efficacy of PPO-inhibitors applied POST for the control of three glyphosate-resistant (GR) weeds and potential for soybean injury, when applied at two growth stages. All herbicide treatments controlled 10- and 20-cm tall GR common waterhemp ≥ 95% at 21 DAT. …

Weed Control Options For Residential Lawns In Utah, Taun Beddes, Kelly Kopp, Ralph Whitesides, Jaydee Gunnell, Michael Caron

All Current Publications

An important aspect of landscape maintenance includes suppressing lawn weeds, including broadleaf and grassy forms, which may disrupt the uniformity of turf. Weed prevention through proper turf establishment and maintenance is the best practical approach for long-term weed control, and is less expensive than controlling weeds later. This fact sheet discusses using best management practices such as proper mowing height along with irrigation and nutrient management, and In certain situations, herbicides.

Biology And Control Of Glyphosate-Resistant Giant Ragweed., Simranpreet Kaur

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Giant ragweed is a troublesome, early emerging, summer annual weed found throughout the eastern and midwestern corn and soybean growing regions of the United States. Since the emergence of giant ragweed varies at different locations, our first objective was to determine the emergence pattern of giant ragweed in Nebraska and how spring tillage influences emergence. Results of a two-year study suggested that giant ragweed emerged from late March until mid-June, with the majority of emergence ceasing by early May. Spring tillage could be used as an alternative method for managing glyphosate resistant giant ragweed.

Water stress can affect the growth …

The Ten Most Common Mistakes In Using No-Till, Earl Creech, Phil Rasmussen, Robert Newhall

All Current Publications

Interest in no-till (NT) crop production practices has increased greatly among Utah farmers and ranchers in recent years. This publication highlights 10 common mistakes that are often made by producers that are new to NT.

Soil Solarization, David A. Bainbridge

David A Bainbridge

Soil solarization makes use of the energy of the sun to heat soil and kill weeds and pathogens. Single, double, or bubblepack plastic and be used to increase soil temperature. Multiple growth benefits are often realized.

Effects Of Organic Manures And Non-Chemical Weed Control On Wheat. Ii. Grain Quality, Sancar Bulut, Ali̇ Öztürk, Mehmet Murat Karaoğlu, Nesri̇n Yildiz

Turkish Journal of Agriculture and Forestry

Deficit plant nutrients, especially nitrogen, and weed competition are the most critical problems in organic farming. This research was carried out on research plots of the Agricultural Research and Extension Center of Atatürk University Agricultural Faculty during the cropping seasons of 2006-07, 2007-08, and 2008-09 under dry farming conditions. A factorial experimental design with 4 replications was used to set up the experimental plots. The factors were 2 wheat cultivars (Kırik and Doğu-88), 3 weed control practices (weedy control, hand weeding, dense sowing), and 7 fertilizer sources [control, standard inorganic (NP), Bio-Organic (Bio), Bio-SR Organic (Bio SR), Leonardite, Organic fertilizer …

Pb1580-2013 Weed Control Manual For Tennessee, Larry Steckel, G. Neil Rhodes Jr., Chris Main, Barry Sims, Robert M. Hayes, Angela Mcclure, Thomas C. Mueller, Blake Brown

Field & Commercial Crops

No abstract provided.

Ec00-1207 Growing Onions, Shallots, And Chives, Susan Schoneweis, Laurie Hodges, Loren J. Giesler

Laurie Hodges

The common onion (Allium cepa) is the most popular and widely grown Allium in Nebraska home gardens. Many members of the onion family (Alliaceae) are used in flower gardens because of their interesting flowers and foliage, but here we're going to focus on the onion as a vegetable crop. This publication will discuss the different types of onions and how to grow onions from onion sets, plants, transplants, and seed. It will cover the different cultivars found here in Nebraska, the nutrition, fertilizing, harvesting, curing and storing of onions.

Ec81-1240 Vegetable Gardening In Nebraska, Dale T. Lindgren, Laurie Hodges, Don Steinegger, Ralph E. Neild

Laurie Hodges

Nebraskans are increasing their consumption of fresh vegetables — as appetizers, salads, side dishes, and snacks. Fresh vegetables are an integral part of a healthy, well-balanced diet. Although Nebraska's climate and soil are well-suited for many vegetables, most are supplied from out of the state, even during summer. Growing fresh vegetables can provide higher nutrition and flavor at less expense than buying fresh produce at the grocery store. A garden also can be a source of personal enjoyment and satisfaction. This extension circular helps the gardener decide when, where, and how to plant and maintain a vegetable garden.

G81-540 Peppers (Revised May 1990), Dale T. Lindgren, Laurie Hodges

Laurie Hodges

Various peppers and their care are discussed here. Peppers are treated as warm-season annual crops when grown in Nebraska gardens. They are related to eggplants, potatoes and tomatoes, all of which belong to the Solanaceae (Nightshade) family.

G92-1084 Culture Of Cole Crops, Laurie Hodges, R.E. Neild

Laurie Hodges

How to grow successfully broccoli, brussels sprouts, cabbage, cauliflower, and kohlrabi. Cole crops, which include broccoli, brussels sprouts, cabbage, cauliflower, and kohlrabi, can be successfully grown on most soils if drainage is good and the crop is supplied with adequate water and nutrients, particularly nitrogen. Light-textured soils usually produce earlier crops but heavier soils hold more moisture and tend to produce crops that hold quality longer at maturity. Cole crops have shallow root systems. Inadequate moisture may cause small cauliflower heads to form prematurely. Rainfall or irrigation following a prolonged dry spell may cause splitting of cabbage and kohlrabi. Supplemental …

Common Regional Pests Of Western Australia, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

Western Australia is free from many exotic animal and plant pests, diseases and weeds that are present elsewhere in Australia. However, the state does have some unwanted intruders. Of these, many are declared plants or declared animals which, for the sake of convenience, we collectively call declared pests.

Ec09-130 2009 Guide For Weed Management, Mark L. Bernards, Roch E. Gaussoin, Robert N. Klein, Stevan Z. Knezevic, Drew J. Lyon, Lowell D. Sandell, Robert G. Wilson Jr., Patrick J. Shea, Clyde Ogg

University of Nebraska-Lincoln Extension: Historical Materials

The 2009 Guide for Weed Management in Nebraska is a valuable tool for anyone with responsibility for controlling weeds in crop, pasture, range, turf or aquatic environments in Nebraska. Our goal is to provide a comprehensive publication that will enable the user to make sound weed control decisions based on unbiased, research-based information, and to carry out weed control activities in a safe and responsible manner.

This publication deals principally with herbicides as an aid for crop production. The suggestions for use are based on research at the University of Nebraska–Lincoln Research and Extension Centers and elsewhere.

B852: Organic Wild Blueberry Production, Frank Drummond, John Smagula, Seanna Annis, David Yarborough

Bulletins

Recent research carried out under the auspices of a USDA organic transition grant resulted in a better understanding of the interaction of wild blueberry production tactics such as pruning method, soil pH reduction by sulfur (S) application, and organic fertilizer rates on wild blueberry growth, development, and yield. This bulletin is the product of what we have learned over the past four years of this research project.

Ec08-130 2008 Guide For Weed Management, Mark L. Bernards, Roch E. Gaussoin, Robert N. Klein, Stevan Z. Knezevic, Drew J. Lyon, Lowell D. Sandell, Robert G. Wilson Jr., Patrick J. Shea, Clyde Ogg

University of Nebraska-Lincoln Extension: Historical Materials

The 2008 Guide for Weed Management in Nebraska is a valuable tool for anyone with responsibility for controlling weeds in crop, pasture, range, turf or aquatic environments in Nebraska. Our goal is to provide a comprehensive publication that will enable the user to make sound weed control decisions based on unbiased, research-based information, and to carry out weed control activities in a safe and responsible manner.

This publication deals principally with herbicides as an aid for crop production. The suggestions for use are based on research at the University of Nebraska–Lincoln Research and Extension Centers and elsewhere.

Southern Weeds And Their Control, John Moore, Judy Wheeler

Bulletins 4000 -

This booklet provides easy identification of common weeds and methods of control using common cultural, biological and herbicidal control techniques. The weeds are divided into four colour coded groups based on their lifeform and are grasses, herbs, vines and shrubs or trees. Within each group, the weeds are listed alphabetically by their Latin name. A brief description of the herbicides used, a glossary and an index are included. Some species have been combined where they have similar control methods like the perennial grasses and Brassica weeds.

2007 Guide For Weed Management In Nebraska, Mark L. Bernards

University of Nebraska-Lincoln Extension: Historical Materials

2007 Guide for Weed Management in Nebraska. Includes special sections on weed control in corn, soybean, wheat, other small grains, sorghum, turfgrass and alternative crops. Also includes sections on integrated weed management, classification of herbicides by mode and site of action and chemical family, herbicide application and sprayer recommendations, weed response ratings to specific herbicides, herbicide hazards, herbicide safety and herbicide resistance, weed management in herbicide-resistant crops and Nebraska noxious weeds.

The Land Is In Your Hands : A Practical Guide For Owners Of Small Rural Landholdings In Western Australia, Department Of Agriculture And Food, Wa

Bulletins 4000 -

This Bulletin discusses various aspects of managing a small farm or property in Western Australia, including soil and land care, vegetation and plant control on farm holdings, water resource management, biosecurity, plant, animal and insect pest control and livestock management.

Determination Of Optimum Weed Control Timing In Maize (Zea Mays L.), M. Nedi̇m Doğan, Aydin Ünay, Özhan Boz, Fi̇li̇z Albay

Turkish Journal of Agriculture and Forestry

In field experiments conducted in 2001 and 2002, the optimum timing for weed control in maize was investigated. Both experiments were designed according to randomized complete blocks, and Cyperus rotundus L., Amaranthus retroflexus L., Portulaca oleracea L. and Chenopodium album L. were naturally infested on experimental plots in both years. The study in 2001 was conducted to determine the critical period for weed control for maize. With this aim plots were maintained weed-free or weedy for different periods based on crop growth stage. The relationships between grain yield and different weedy or weed-free periods were determined via regression analyses in …

Ec03-181 Alfalfa In Nebraska, Bruce Anderson, Loren J. Giesler, Thomas E. Hunt, Shripat T. Kamble, Stevan Z. Knezevic, Charles A. Shapiro

University of Nebraska-Lincoln Extension: Historical Materials

Alfalfa is the most important forage crop grown in Nebraska, with over 1,000 acres grown in every county. It has the highest feeding value for livestock and one of the highest yield potentials. Alfalfa can produce more protein per acre than any other crop and can provide all of the protein needed by many livestock as well as supplying large amounts of vitamins, minerals, and energy. Protein of alfalfa. In also covers the cultural practices, insect pests, diseases, weeds that affect alfalfa.

Developing An Environmental Management System (Ems) For Viticulture, Catherine Nind

Agriculture reports

This guidebook outlines one approach that may be used to develop an Environmental Management System (EMS) for a vineyard. The system described in this guidebook facilitates a continual improvement in environmental management and can be used to demonstrate a commitment to responsible land management. The system is generally consistent with the requirements of ISO 14001: the internationally accepted standard for an EMS.