Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 34 for “"crop damage"”.
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An Assessment of Perceived Crop Damage in a Tanzanian Village Impacted by Human-Elephant Conflict and an Investigation of Deterrent Properties of African Elephant (Loxodonta Africana) Exudates Using Bioassays
… will raid agricultural fields to feed on crops, and many agriculturalists attribute the majority of their crop damage to elephants. The first two objectives of this study were to evaluate the accuracy of this perception by comparing perceived crop damage by elephants and other factors to …
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Evaluation of Various Foliar Sprays for Use as a Canada Goose Grazing Deterrent
… spends over 500,000 dollars dealing with crop damage caused by flightless Canada geese (Branta canadensis). An effective crop deterrent to Canada geese would be important to game managers in eastern South Dakota. In 2011 and 2012, I evaluated the effectiveness of Rejex-It Migrate …
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The costs of human elephant conflict: understanding local perceptions, vulnerabilities and impacts associated with human elephant conflict in Subulussalam, Aceh, Sumatra.
… interviews. The results show both the visible (crop damage, property destruction) and hidden (psychological health, physical health, opportunity costs) impacts of HEC affecting the local people of Subulussalam. Individuals had experienced crop damage, and a majority expressed feelings of fear …
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Insect pest management in hemp in Virginia
… in predicting larval presence in buds or final crop damage. Larval presence and final crop damage are related. Brown marmorated stink bug does not appear to be a concern in hemp, at least at this time.
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Analysis of Aerial Surveys and Tolerance of Landowners for a Canada Goose Flock in Northeastern South Dakota
… 23.5 percent of them had received goose-related crop damage. Percent occurrence of complaints and crop damage was influenced by distance of landowners' property from goose concentration areas. Most landowners who received damage had less than 200 dollars damage in any 1 year or on a 5-year …
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Landuse practices interface:Human-Wildlife conflict in Lupande game management area
… of landuse problems as being deep rooted with crop damage standing at 60 percent and the number of reports received by ZAWA and Chiefs being on the increase. For example in 2006 and 2007, Chief Kakumbi received 207 and 1000 reports on crop damage respectively, whereas Chief Msoro received 474 …
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Landuse practices interface:Human-Wildlife conflict in Lupande game management area
… of landuse problems as being deep rooted with crop damage standing at 60 percent and the number of reports received by ZAWA and Chiefs being on the increase. For example in 2006 and 2007, Chief Kakumbi received 207 and 1000 reports on crop damage respectively, whereas Chief Msoro received 474 …
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Photovoice as a technique to understand the perceptions of local people neighboring Tarangire National Park in Tanzania on the risks caused by migratory animals
… on their perception of risk from wildlife damage using survey questions and narratives. The characteristics of each village (size, distance from each other and distance from park boundary) were determined using GIS and satellite imaginary. The villages had different perceptions (p = 0.003) …
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Primate crop raiding in Uganda: actual and perceived risks around Budongo Forest Reserve
Crop damage by wildlife is a significant threat to global conservation and human development. This interdisciplinary study compared the actual and perceived risk of primate crop raiding around Budongo Forest Reserve, northwest Uganda during 2004/2005. Weekly farm monitoring established that at …
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Is Everything Connected? Following the Predators, Pests, and Plants Within a No-Till, Western Montana Agroecosystem
… Diptera) and spiders (Araneae) - and one crop pest - the imported cabbage worm (Pieris rapae: Lepidoptera) - within a no-till Brussels sprouts (Brassica oleracea, gemmifera group) and red clover (Trifolium pratense) living-mulch system. Second, using two common organic insecticides - …
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Is Everything Connected? Following the Predators, Pests, and Plants Within a No-Till, Western Montana Agroecosystem
… Diptera) and spiders (Araneae) - and one crop pest - the imported cabbage worm (Pieris rapae: Lepidoptera) - within a no-till Brussels sprouts (Brassica oleracea, gemmifera group) and red clover (Trifolium pratense) living-mulch system. Second, using two common organic insecticides - …
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Crop raiding and conflict: Farmers’ perceptions of human-wildlife interactions in Hoima district, Uganda
Conflict between humans and crop raiding wildlife is a growing problem, particularly in tropical, unmechanised farming communities where increased competition for resources intensifies the likelihood of human-wildlife interactions. However, conflict can arise as much from perceptions of risk as …
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Vitality studies on frozen wheat
… decades frost has caused exceptionally severe crop damage in Western Canada. Although early autunm frosts are a recurring hazard, damage usually is scattered and light, often being confined to the more northerly areas. It has been estimated that one-half of the grain crop was damaged in the …
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Studies of the interaction of biogenic volatile organic compounds and NOx in forest environments
<p>Ozone is a pollutant that causes crop damage, adverse health effects, and is a contributor to global climate change. Ozone concentrations are predicted to rise over the next half-century along with global temperature. Ozone production is controlled by the chemistry between biogenic volatile …
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Synthesis of Dicamba Glucosides for the Study of Environmental Dicamba Drift Effects on Soybeans
… companies have developed genetically modified crops that are resistant to herbicides such as dicamba. These modified crops allow farmers to spray their fields with dicamba without fear of crop damage. Farmers of non-genetically modified crops, however, suffer damage and loss of yield from …
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Between-row mower design for weed control in organically grown no-till soybeans
… organic no-till soybean production. They impair crop growth and result in yield loss. Innovative weed control methods need to be developed and experimented with in organic no-till agriculture to reduce weed density and improve organic yield. In 2017, mowing between crop rows was compared to …
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Early Season Population Dynamics and Residual Insecticide Effects on Bird Cherry-oat Aphid, Rhopalosiphum padi in Arkansas Winter Wheat
… yellow dwarf virus which may cause extensive crop damage and yield loss when wheat is infested by virulent aphids in the fall. Some suggest this damage may be avoided using insecticide seed treatments if growers are unable to delay planting, as is recommended. Field population dynamics of bird …
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A software architecture towards automated data-driven multi-resolution crop scouting with an unmanned aerial system
Crop scouting and field monitoring is necessary to track the status of crops planted in the field throughout the season. Developing a sampling plan to determine the path through the field and the number of points to sample helps minimize the amount of time spent scouting while maximizing the …
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Differences In Urban and Rural Natural Hazard Mortality In the United States
… have appeared at the same time: 1) property and crop damage from natural hazards has increased; and 2) hazard mortality has decreased. Despite the overall decrease in natural hazard related fatalities, there is little understanding of spatial differences in mortality between urban and rural …
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DAF-12: A Novel Drug Target in Parasitic Nematodes
… glycines, which causes USD 1 billion of crop damage annually in the U.S. (Wrather and Koenning 2006; Davis and Tylka 2005), does not go through an iL3 stage but rather arrests as the preinfectious second juvenile (piJ2) within the egg (Davis and Tylka 2005). However, just as iL3 worms …
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