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Acetylcholinesterase Inhibition By Nootkatone And Carvacrol In Arthropods, Jennifer A. Anderson, Joel R. Coats 2016 Iowa State University

Acetylcholinesterase Inhibition By Nootkatone And Carvacrol In Arthropods, Jennifer A. Anderson, Joel R. Coats

Joel R. Coats

The essential oils from many botanicals have been screened for insecticidal activity. Two constituents of the Alaskan yellow cedar tree, the monoterpenoid carvacrol and the sesquiterpenoid nootkatone, both are toxic against several arthropods. The mode of action through which nootkatone and carvacrol exert their insecticidal activity remains uncertain. It has been hypothesized that they may inhibit acetylcholinesterase enzyme activity. The degree of acetylcholinesterase inhibition of carvacrol and nootkatone was compared to that of carbaryl, a known acetylcholinesterase inhibitor, in the house fly (Musca domestica), yellow fever mosquito (Aedes aegypti), American dog tick (Dermacentor variabilis) and American cockroach (Periplaneta americana). The ...


Exploration Of Chemical And Biological Management Strategies For Diaphorina Citri The Primary Vector Of Candidatus Liberibacter Asiaticus, Gretta Marie Sharp 2016 University of Texas at Tyler

Exploration Of Chemical And Biological Management Strategies For Diaphorina Citri The Primary Vector Of Candidatus Liberibacter Asiaticus, Gretta Marie Sharp

Biology Theses

Diaphorina citri (Hemipteran: Psyllidae), the Asian citrus psyllid, is a phloem-feeding, invasive species endemic to southern Asia that was first identified in the United States in Florida in 1998. Since introduction, D. citri has spread across the major citrus growing regions of the United States. This is of great concern to the citrus industry because D. citri is the primary vector of Candidatus Liberibacter asiaticus the causal agent of Haunglongbing (HLB). Haunglongbing is the most economically devastating disease of citrus causing an estimated 8.92 billion dollars lost in revenue and 4.62 billion dollars lost in gross domestic product ...


Organic Practices For The Production Of Muskmelon, Hayley Nelson, Mark Gleason 2016 Iowa State University

Organic Practices For The Production Of Muskmelon, Hayley Nelson, Mark Gleason

Farm Progress Reports

Cucumber beetles provide a unique challenge to growers of muskmelon and other cucurbit crops in the Midwest. Spotted and striped cucumber beetles transmit bacterial wilt by feeding on infected plants. Beetles ingest the bacteria (Erwinia tracheiphila) and overwinter in soil. After emerging the following spring, beetles fly to nearby cucurbit crops to feed, continuing to spread bacterial wilt disease from plant to plant.


Bacterial Wilt Management In Muskmelonusing Perimeter Trap Cropping, Hayley Nelson, Mark Gleason 2016 Iowa State University

Bacterial Wilt Management In Muskmelonusing Perimeter Trap Cropping, Hayley Nelson, Mark Gleason

Farm Progress Reports

Spotted and striped cucumber beetles transmit bacterial wilt by feeding on infected plants. Bacterial wilt is devastating to cucurbit crops, especially muskmelon. Frequent applications of insecticides are the main form of control against cucumber beetles. Perimeter trap cropping (PTC) is a relatively new technique aimed at reducing insecticide sprays and the spread of bacterial wilt. PTC involves planting a border crop (usually 2 rows) that is highly attractive to beetles around a less attractive main crop. Cucumber beetles concentrate on the more attractive perimeter crop, and growers focus most of their insecticide applications on that limited area, reducing pesticide use.


Effects Of Tillage And Cover Crops On Muskmelon Production And Food Safety, John Krzton-Presson, Ajay Nair, Angela Shaw 2016 Iowa State University

Effects Of Tillage And Cover Crops On Muskmelon Production And Food Safety, John Krzton-Presson, Ajay Nair, Angela Shaw

Farm Progress Reports

Reduced tillage has been widely adopted in production of agronomic crops for its potential to improve soil health and reduce input costs. Despite this, vegetable growers largely rely on conventional tillage to incorporate crop residue, control weeds, and to prepare a seed bed for planting.


Evaluation Of Grafted And Nongrafted Hybrid And Heirloom Tomatoes In A Midwest High-Tunnel Production System, Kristine Neu, Ajay Nair 2016 Iowa State University

Evaluation Of Grafted And Nongrafted Hybrid And Heirloom Tomatoes In A Midwest High-Tunnel Production System, Kristine Neu, Ajay Nair

Farm Progress Reports

High tunnels have emerged as a tool for Iowa vegetable growers to extend the growing season, increase crop production, and improve quality of the produce, but production in this system does not come without challenges. Continuous cropping of tomatoes in the same high tunnel gives rise to recurring soil-borne and foliar diseases, pest pressure, issues with soil fertility and salinity, and increased irrigation requirements. One tool to overcome these challenges may be the use of vegetable grafting. The process of grafting is accomplished by attaching a desired scion onto a rootstock that is typically bred for vigor and/or disease ...


Evaluation Of Select Herbicides On Non-Bearing Crops, Diana Cochran 2016 Iowa State University

Evaluation Of Select Herbicides On Non-Bearing Crops, Diana Cochran

Farm Progress Reports

This study was conducted as part of the IR-4 Project to investigate herbicide phytotoxicity on two growth stages of shadblow serviceberry (Amelanchier canadensis), MalusGinger Gold apple (Malus × Ginger Gold), Spartan apple (Malus × Spartan), northern pecan (Carya illinoensis), Spanish chestnut (Castanea sativa), and Blackgold cherry (Prunus Blackgold).


Sixth Year Performance Of Honeycrisp Grafted On 31 Dwarfing Rootstocks Of The Nc-140regional Apple Rootstock Trial, Glen Rippke, Diana Cochran, Lynn Schroeder 2016 Iowa State University

Sixth Year Performance Of Honeycrisp Grafted On 31 Dwarfing Rootstocks Of The Nc-140regional Apple Rootstock Trial, Glen Rippke, Diana Cochran, Lynn Schroeder

Farm Progress Reports

Introduction Dwarfing rootstocks have the potential to increase profitability of tree-fruit growers by providing smaller trees suitable for high density plantings. Although the initial installation cost can be 10 to 30 times more than lower-density plantings, the long-range returns can far exceed the traditional plantings. However, to be viable as a commercial rootstock, dwarfing rootstocks must be adapted to a range of agro-climatic conditions, moderately disease resistant, high yielding, and produce quality fruit.


Polyphenol Content And Differential Expression Of Flavonoid Biosynthetic Pathway Genes Of Fragaria Spp. With White Fruit, Sutapa Roy 2016 University of Kentucky

Polyphenol Content And Differential Expression Of Flavonoid Biosynthetic Pathway Genes Of Fragaria Spp. With White Fruit, Sutapa Roy

Theses and Dissertations--Plant and Soil Sciences

Strawberries are a rich source of polyphenols which contribute to berry color and plant disease resistance, and have been shown to lower the risk of many chronic when consumed. While a considerable body of work exists on the polyphenolic composition of commercial strawberry (Fragaria x ananassa Duch.), less information is available concerning polyphenols in Fragaria vesca, or Alpine strawberry, considered a model system for the Rosaceae family of crop species. The study of natural and genetically-engineered F. vesca mutants with white fruit can provide unique insight into regulation of metabolic flux through the complex branched phenylpropanoid/flavonoid biosynthetic pathway. Thus ...


Vegetables, Fruits & Herbs Book, Utah State University 2016 Utah State University

Vegetables, Fruits & Herbs Book, Utah State University

All Current Publications

This book is a compilation of 58 researched-based fact sheets written and compiled by Utah State University faculty and students. For more gardening resources provided by USU Extension please visit our gardening website at garden.usu.edu.


The Enhancement Of Wild Bees (Hymenoptera: Apoidea) For Pollination Security, Eric M. Venturini 2015 University of Maine

The Enhancement Of Wild Bees (Hymenoptera: Apoidea) For Pollination Security, Eric M. Venturini

Electronic Theses and Dissertations

The acreage of pollinator-dependent crops continues to expand across the globe. Simultaneously, honey bee hives – an annually rented commodity that growers rely on – are more expensive every year and in some cases, scarce. In response, pollinator-dependent growers seek alternative pollinators. One approach is installing bee pasture on farms, a strategy that enables systems-based farmers to become in-situ farm-scale habitat managers. This thesis first presents a review of the literature on bee pasture plantings and provides a brief overview of some methods for assessing their impacts on the pollinator community. There are three major gaps in current bee pasture research. First ...


Mangiferin As A Biomarker For Mango Anthracnose Resistance, Herma Pierre 2015 Department of Earth and Environment

Mangiferin As A Biomarker For Mango Anthracnose Resistance, Herma Pierre

FIU Electronic Theses and Dissertations

Mangos (Mangifera indica L.) are tropical/subtropical fruits belonging to the plant family Anacardiaceae. Anthracnose is the most deleterious disease of mango both in the field and during postharvest handling. It is most commonly caused by the Colletotrichum gloeosporioides complex. Mangiferin, a xanthanoid compound found in at least twelve plant families worldwide (Luo et al., 2012), is present in large amounts of the leaves and edible mangos. Even though this compound plays a pivotal role in the plant’s defense against biotic and abiotic stressors, no correlations been made between the compound and mango anthracnose resistance.

Mangos were collected, grouped ...


Accessing Chilling Conditions For Perennial Fruit Crop Production In Kentucky, Yao Xue 2015 Western Kentucky University

Accessing Chilling Conditions For Perennial Fruit Crop Production In Kentucky, Yao Xue

Masters Theses & Specialist Projects

Temperate Region fruit and nut trees, and many other perennial plants, require cool winter temperatures (chilling hours) to ensure leaf and flower bud production in the following season. Temperate Regions are characterized by variable winter and spring temperatures. Failure of meeting sufficient chilling requirement results in deformed fruits, unequal maturation, and other plant deformities, thereby reducing quality and yields. Chilling requirements are expressed as number of accumulated hours within a range of approximately 32º to 45ºF or 0º to 7.2ºC. These requirements are specific for level of temperature, length of temperature period, and species and cultivar of plants. Information ...


Historical Common Names Of Great Plains Plants, With Scientific Names Index. Volume Ii: Scientific Names Index, Elaine Nowick 2015 University of Nebraska-Lincoln

Historical Common Names Of Great Plains Plants, With Scientific Names Index. Volume Ii: Scientific Names Index, Elaine Nowick

Zea E-Books

Containing thousands of entries of both vernacular and scientific names of Great Plains plants, the literature that informs this exhaustive listing spans nearly 300 years. Author Elaine Nowick has drawn from sources as diverse as Linnaeus, Lewis and Clark, and local university extension publications to compile the gamut of practical, and often fanciful, common plant names used over the years. Each common name is accompanied by a definitive scientific name with references and authority information. Interspersed with scientifically-correct botanical line drawings, the entries are written in standard ICBN format, making this a useful volume for scholars as well as lay ...


Historical Common Names Of Great Plains Plants, With Scientific Names Index. Volume I: Common Names, Elaine Nowick 2015 University of Nebraska-Lincoln

Historical Common Names Of Great Plains Plants, With Scientific Names Index. Volume I: Common Names, Elaine Nowick

Zea E-Books

Containing thousands of entries of both vernacular and scientific names of Great Plains plants, the literature that informs this exhaustive listing spans nearly 300 years. Author Elaine Nowick has drawn from sources as diverse as Linnaeus, Lewis and Clark, and local university extension publications to compile the gamut of practical, and often fanciful, common plant names used over the years. Each common name is accompanied by a definitive scientific name with references and authority information. Interspersed with scientifically-correct botanical line drawings, the entries are written in standard ICBN format, making this a useful volume for scholars as well as lay ...


Review Of A Garden Of Marvels: How We Discovered That Flowers Have Sex, Leaves Eat Air, And Other Secrets Of Plants, By Ruth Kassinger, Robert Diffendal Jr. 2015 University of Nebraska - Lincoln

Review Of A Garden Of Marvels: How We Discovered That Flowers Have Sex, Leaves Eat Air, And Other Secrets Of Plants, By Ruth Kassinger, Robert Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Until I read Kassinger’s book I clearly did not have the historical perspective necessary to appreciate the incredible lives of plants and how botanists have come to their present understandings of same. Kassinger, a gardener by avocation, cut out most of the jargon, defined terms that she does use, and wrote simple and compelling tales of the histories of discoveries about the various parts of plants and how those parts work together for the benefit of the plant and, ultimately, for our benefit.

[This] is a book that any gardener or other interested person with a modest background in ...


An Economic Analysis Of Wild Bee Pollination In Lowbush Blueberry Production, Francis A. Drummond 2014 Principal Investigator; University of Maine, Orono

An Economic Analysis Of Wild Bee Pollination In Lowbush Blueberry Production, Francis A. Drummond

University of Maine Office of Research and Sponsored Programs: Grant Reports

The purpose of this project is to determine the relative economic values of wild bee pollinators and commercial honeybees in lowbush blueberry production for individual Maine farms. The lowbush blueberry requires insect pollination in order to set fruit. Most farmers rent colonies of the non-native honeybee for pollination services, but wild, native bees are also effective pollinators. This project aims to provide growers with the means to assess the pollination needs of individual fields and to understand the levels of pollination possible if honeybees are not available. In order to achieve these goals, the relative abundance and species diversity of ...


Production, Marketing, And Handling Practices To Export Mcintosh Apples To Central American Markets, Mildred L. Alvarado Herrera 2014 University of Massachusetts - Amherst

Production, Marketing, And Handling Practices To Export Mcintosh Apples To Central American Markets, Mildred L. Alvarado Herrera

Doctoral Dissertations May 2014 - current

Latin America offers a marketing opportunity for fresh produce, since many countries are entering into global integration and international trade as part of their portfolio of economic growth. However, to take full advantage of these opportunities, many questions associated with the implementation of marketing approaches, fresh produce quality retention, and profitability need be answered before undertaking this business opportunity. When it comes to developing countries such as those in Central America, and in particular - El Salvador, Honduras, and Guatemala - language, culture, technology, competitiveness, regulations, poverty, and other barriers become challenges to enter these markets successfully. In order to better understand ...


Influence Of Aba On Calcium Binding In Tomato Fruit And Its Impact On Fruit Texture, Kendall Cressman 2014 University of Tennessee - Knoxville

Influence Of Aba On Calcium Binding In Tomato Fruit And Its Impact On Fruit Texture, Kendall Cressman

University of Tennessee Honors Thesis Projects

No abstract provided.


Evaluating Perennial Crop Options For Inclusion In Agroforestry Systems, Jeff Jensen 2014 Trees Forever

Evaluating Perennial Crop Options For Inclusion In Agroforestry Systems, Jeff Jensen

Leopold Center Completed Grant Reports

The challenges and opportunities, including financial returns, were studied for six different perennial crops that can be used in agroforestry practices. Crops investigated were aronia berry, black walnut, chestnut, Christmas trees, elderberry and hazelnut.


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