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Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
Pests Of Hemp In Utah, Marion Murray, Macahl Evans, Claudia Nischwitz, Austin Taylor, Cody Zesiger
Pests Of Hemp In Utah, Marion Murray, Macahl Evans, Claudia Nischwitz, Austin Taylor, Cody Zesiger
All Current Publications
This guide includes information on insect and disease pests of hemp, organized by pest group. Much of the content is a result of a two-year arthropod and plant disease survey of field-grown hemp operations in northern Utah. Some pests included in this guide were not found in that survey but may be likely to occur in the future. Beneficials and natural enemies are also covered, and information on pesticides is included.
Adapting Network Theory For Spatial Network Externalities In Agriculture: A Case Study On Hemp Cross-Pollination, Jeffrey S. Young, Tanner J. Mccarty
Adapting Network Theory For Spatial Network Externalities In Agriculture: A Case Study On Hemp Cross-Pollination, Jeffrey S. Young, Tanner J. Mccarty
Faculty & Staff Research and Creative Activity
Growers have increasingly expressed frustration over the negative externalities created by their neighbor's production practices. These spatial agricultural network problems include issues such as cross-pollination and herbicide drift. We develop novel methods for estimating parameters that allow us to adapt and apply general network diffusion models to these spatial agricultural network problems. Doing so allows us to calculate externality damage within a region and calculate cost-effective policies for alleviating that externality. We empirically illustrate, motivate, and test this approach by applying it to hemp. We find that network structure is an important factor in externality size and cost-effective policy response …
Western Bean Cutworm (Lepidoptera: Noctuidae) Feeding And Development On Industrial Hemp In The Laboratory And Field, Christina D. Difonzo
Western Bean Cutworm (Lepidoptera: Noctuidae) Feeding And Development On Industrial Hemp In The Laboratory And Field, Christina D. Difonzo
The Great Lakes Entomologist
The western bean cutworm (Striacosta albicosta (Smith)) is a key pest of corn (Zea mays L.) and dry beans (Phaseolus vulgaris L.). This observational study demonstrates that in addition to these hosts, western bean cutworm readily feeds on industrial hemp (Cannabis sativa L.) and completes development on it under controlled laboratory conditions. In the laboratory, individual larvae were reared on a diet exclusively of hemp inflorescences; 57% survived to form prepupae and 15% emerged as moths. In the field, first instars were caged on hemp plants to investigate larval development in situ. After seven days, 82% …
Parasitism Of Corn Earworm, Helicoverpa Zea (Boddie) (Lepidoptera: Noctuidae), By Tachinid Flies In Cultivated Hemp, Armando Falcon-Brindis, John O. Stireman Iii, Zenaida J. Viloria, Raul T. Villanueva
Parasitism Of Corn Earworm, Helicoverpa Zea (Boddie) (Lepidoptera: Noctuidae), By Tachinid Flies In Cultivated Hemp, Armando Falcon-Brindis, John O. Stireman Iii, Zenaida J. Viloria, Raul T. Villanueva
Biological Sciences Faculty Publications
In a survey on hemp grown in western Kentucky we found an average of 27.8 CEW larvae per plant. We recorded 45% parasitism of CEW in these fields by two species of tachinid flies, Winthemia rufopicta and Lespesia aletiae. Most parasitized larvae were third to sixth instars at the time of collection. We found up to 22 tachinid eggs per host larva, 89% of which typically bore between 1 and 5 eggs on the thorax. 45.9% of CEW bearing eggs died. The number of tachinid eggs per host was unrelated to host body mass, but both the number of tachinid …
Improved And Sustainable Management Of Economically Important Plant-Parasitic Nematodes Of Field Crops And Fungal Diseases Of Soybean And Hemp In Tennessee, Rufus J. Akinrinlola
Improved And Sustainable Management Of Economically Important Plant-Parasitic Nematodes Of Field Crops And Fungal Diseases Of Soybean And Hemp In Tennessee, Rufus J. Akinrinlola
Doctoral Dissertations
Nematodes and diseases can limit field crops and hemp production in Tennessee. Therefore, seven research objectives were undertaken to improve the management of the crops: First, the prevalence and density of plant-parasitic nematode populations were evaluated across many field crop acreages in Tennessee through a survey from 2018 through 2020. Second, the virulence phenotypes of soybean cyst nematode (SCN), (Heterodera glycines [HG]), populations were assessed in Tennessee fields using the HG types test. Third, the impact of the virulent SCN HG type 1.2.5.7 on soybean nitrogen fixation activity and growth was evaluated on different soybean genotypes in the greenhouse. …
Impact Of Far-Red Light Supplementation On Yield And Growth Of Cannabis Sativa, Thomas Benjamin Carter
Impact Of Far-Red Light Supplementation On Yield And Growth Of Cannabis Sativa, Thomas Benjamin Carter
Masters Theses
Far-red light(700-780nm) induces shade avoidance response in many different species of plants. The shade avoidance response triggers a number of changes in the plant such as cell expansion and stem elongation. This cell expansion has shown to increase yields in leafy greens and increase flower set in tomatoes. Despite there being a void in the literature for Cannabis sativa, far-red lights are often advertised to provide several benefits. This study will evaluate the effects of far-red light supplementation on the yield and height of Cannabis sativa. Five cannabis clones were grown under white (410-730nm) light emitting diodes (LED’s) at …
New Records Of Aphids (Hemiptera: Aphididae) On Industrial Hemp In The Us Midwest, Doris M. Lagos-Kutz, Christina D. Difonzo, Glen L. Hartman
New Records Of Aphids (Hemiptera: Aphididae) On Industrial Hemp In The Us Midwest, Doris M. Lagos-Kutz, Christina D. Difonzo, Glen L. Hartman
The Great Lakes Entomologist
Industrial hemp (Cannabis sativa L.) production in the USA is increasing, and with it the list of insects colonizing the crop. In this article, we report new records of Aphis craccivora Koch 1854, Aphis fabae Scopoli, Aphis gossypiiGlover 1763, Aphis spiraecola Patch 1914 and Myzus persicae (Sulzer 1776) on industrial hemp in East Lansing, Michigan in fall 2020. In addition, between 2017 and 2020, the number of suction trap sites detecting P. cannabisincreased, and as well as the number of sites with multiple weeks of detections. The timing of detection changed, from only late season (fall migrants) …
2020 Hemp Flower Plant Spacing X Planting Date Trial, Heather Darby, John Bruce, Ivy Krezinski, Rory Malone, Sara Ziegler
2020 Hemp Flower Plant Spacing X Planting Date Trial, Heather Darby, John Bruce, Ivy Krezinski, Rory Malone, Sara Ziegler
Northwest Crops & Soils Program
Hemp is a non-psychoactive variety of cannabis sativa L. Hemp is a crop of historical importance in the U.S. and re-emerging worldwide as a popular crop as it is sought out as a renewable and sustainable resource for a wide variety of consumer and industrial products. Hemp that is grown for fiber, grain oil, or as an intended health supplement contains less than 0.3% tetrahydrocannabinol (THC). When hemp is grown to produce cannabidiol (CBD) as an intended health supplement, CBD concentrations are relatively high, with concentrations ranging between 8-15%. Hemp for CBD production is grown more intensively, similar to vegetable …
Effects Of Cannabinoid Supplementation On Weaning And Transportation Stress In Beef Calves, Savannah Kaitlyn Austin
Effects Of Cannabinoid Supplementation On Weaning And Transportation Stress In Beef Calves, Savannah Kaitlyn Austin
Murray State Theses and Dissertations
Transportation stress is a major factor increasing the risk of bovine respiratory disease (BRD) in young calves. Bovine respiratory disease is currently the most economically important disease affecting the cattle industry, costing producers millions of dollars annually. Cannabidiol (CBD) has shown therapeutic benefits in other species, making it a potential tool to use as a supplement to reduce transportation and weaning stress in calves. However, little information is available on cannabinoid bioavailability and disposition of bioactive residue in livestock tissues. The objectives of these studies were to evaluate effective dosage rates of a cannabinoid gel on beef cattle and to …
Cultivation Of Industrial Hemp On And Near Airports: Implications For Wildlife Use And Risk To Aviation Safety, Bradley F. Blackwell, Page E. Klug, Lee A. Humberg, Zachary T. Brym, Bryan M. Kluever, Jennifer M. Edwards
Cultivation Of Industrial Hemp On And Near Airports: Implications For Wildlife Use And Risk To Aviation Safety, Bradley F. Blackwell, Page E. Klug, Lee A. Humberg, Zachary T. Brym, Bryan M. Kluever, Jennifer M. Edwards
Human–Wildlife Interactions
Land-use planning on and near airports should consider possible revenue from land covers, associated maintenance costs, and potential for land covers to attract vertebrate species recognized as hazardous to aviation safety. The U.S. Federal Aviation Administration has expressed interest in recent attention given to industrial hemp (Cannabis sativa L.; hemp) as a revenue-producing land cover that might be cultivated on or near airports. Our purpose was to better understand the potential production value of hemp as well as its possible role in affecting aviation safety if cultivated on or near airports. Our objectives were to: (1) review the literature …
Cultivation Of Industrial Hemp On And Near Airports: Implications For Wildlife Use And Risk To Aviation Safety, Bradley F. Blackwell, Page E. Klug, Lee A. Humberg, Zachary T. Brym, Bryan M. Kluever, Jenna Edwards
Cultivation Of Industrial Hemp On And Near Airports: Implications For Wildlife Use And Risk To Aviation Safety, Bradley F. Blackwell, Page E. Klug, Lee A. Humberg, Zachary T. Brym, Bryan M. Kluever, Jenna Edwards
USDA Wildlife Services: Staff Publications
Industrial hemp (Cannabis sativa L.; hemp) is an emerging crop in the United States with little known about bird use or the potential for birds to become an agricultural pest. We identified birds associated with hemp fields, using repeated visits to oilseed plots in North Dakota, USA (n = 6) and cannabinoid (CBD) plots in Florida, USA (n = 4) from August to November 2020. We did not control for plot area or density; our observations were descriptive only. We observed 10 species in hemp, 12 species flying over hemp, and 11 species both foraging in and …
Hemp In The United States: An Analysis Of Policy And Consumption, Amanda Falkner
Hemp In The United States: An Analysis Of Policy And Consumption, Amanda Falkner
Graduate College Dissertations and Theses
As highlighted by its history, the association between hemp and marijuana has proven to be a barrier to success for industrial hemp production for decades. Once a prevalent agricultural crop in the United States, prohibitive legislation discouraged its production and formally made hemp an illegal crop in 1970. Consequently, hemp and its myriad applications remained underutilized by the United States for over forty years. It wasn’t until the 2014 Farm Bill that hemp production was reintroduced as an option for farmers. This hemp hiatus has created the need for interdisciplinary research in order for the market for the crop to …