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 13 of 13 for “"pest outbreaks"”.
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A Case-Based Reasoner for Evaluating Crop Rotations in Whole-Farm Planning
… for their soil erosion and risk of insect pest problems. The purpose of this system is to provide decision support for an automated whole-farm planner (CROPS). CROPS (Buick et al., 1992) generates crop rotation plans that can address some of the environmental, economic and legislative …
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Sanitary and Phytosanitary Measures: The Case of Mexican Avocados
… into the U.S. market on grounds of risk of pest infestation. Since the early 1970s this quarantine has been a cause of dispute between the Mexican and U.S. governments, resulting in elaborate evaluations of possible pest risks and risk mitigation procedures that might be carried out. …
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Risk Assessment and Improving Brown Marmorated Stink Bug (Stål), Halyomorpha halys, Sampling in Virginia Soybean Systems
… halys (Stål), has become an important pest of soybean in the Mid-Atlantic US. To assess the influence of tree borders on BMSB infestations in soybean, twelve fields were sampled weekly using five 3-min visual counts of BMSB on tree of heaven (TOH) (Ailanthus altissima) and other host …
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Role of bats as natural pest control agents of moth pests (false codling moth and carob moth) on citrus orchard
… within agricultural landscapes through insect pest suppression has gained recognition globally. Multiple studies have thoroughly examined the vital role played by insectivorous bats within agricultural landscapes as biological control of insect pests for crops such as rice, cotton, pecan, corn, …
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Influence of light conditions on the dynamics of Tetranychus urticae and its control by the predatory mite Neoseiulus californicus
… ecological questions regarding its impact on pest and natural enemy dynamics. This study investigates the impact of LED light exposure on the dynamics of the two-spotted spider mite (Tetranychus urticae) and its control by the predatory mite Neoseiulus californicus. Three light treatments were …
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A Whole-Farm Planning Decision Support System for Preventive Integrated Pest Management and Nonpoint Source Pollution Control
… support system for preventive integrated pest management (IPM) and nonpoint source (NPS) pollution control was designed, implemented and evaluated. The objective of the system was to generate plans at the farm level to satisfy economic and production goals while limiting risks of insect …
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Mountain Pine Beetle Detection using IoT
The large-scale damage caused by outbreaks of forest pests has significant impact on both the ecosystem and forestry industry. Currently, pest outbreaks are monitored using field, aerial and remote sensing surveys. These methods, however, only provide partial spatial coverage and can detect …
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Diapause biology, dispersal capabilities and insecticide use for Lygus lineolaris in Mid-Atlantic cotton systems
… contiguous acreage, and distinctive issues with pests. A significant pest of this region is the tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), which emerged as a major threat to mid-Atlantic cotton during the late 2010s. L. lineolaris utilize a variety of wild and cultivated hosts …
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Evaluating the Efficacy of Targeted Pesticide Applications and Machine Learning Integration for Precision Turfgrass Management
… demand for sustainability in turfgrass pest management, emphasizing the need to reduce chemical inputs while maintaining effective pest control. Precision turfgrass management (PTM), a subsect of precision agriculture, addresses these sustainability goals by tailoring management …
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Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean
… a key role in controlling potentially damaging pest populations in agroecosystems. An abundant and diverse natural enemy community is associated with higher yields in a variety of crops. Certain aspects of soybean production can make a field more or less amenable to a robust natural enemy …
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Seasonal variation, spatial distribution and decision–making system to control of the Leucoptera coffeella in coffee arabica fields
… miner Leucoptera coffeella is one of key coffee pests. This pest can decrease productivity by around 50 to 87% at high densities. Several factors can influence the L. coffeella population dynamics in the field. Therefore, prior knowledge of the areas and seasons of higher incidence of L. …
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Characteristics of biological control agents and their antagonism against rice pathogens and pests
… routinely faces the risk of pathogen and pest outbreaks which may cause significant yield loss such as rice root-knot nematodes, bacterial leaf blight, and brown planthopper. Currently, pesticide use is the dominant practice for pest and disease management in Asian rice farming. The use of …
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Interactive effects of hemlock mortality and nitrogen availability on nutrient pools and fluxes in the southern Appalachian Mountains
The impacts of exotic insects and pathogens on forest ecosystems are increasingly recognized, yet the factors influencing the magnitude of effects remain poorly understood. Eastern hemlock (Tsuga canadensis) exerts strong control on nitrogen (N) dynamics, and its loss due to infestation by the …