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Showing 1 to 8 of 8 for “"Spray Drift"”.
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Quantification of spray drift from aerial applications of pesticide
… pesticides in modern agriculture, the impacts of spray drift have become a topic of considerable interest. The drifting of sprays is a highly complex process influenced by many factors. Advances in aerial application technology and in our ability to measure drift, coupled with the adoption of new …
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A comparison of runoff- and spray-drift-related pesticide contamination in agricultural surface waters : exposure, effects and mitigation
Runoff and spray-drift-related pesticide input are important sources of non pointsource pesticide pollution in surface waters but few studies have directly compared these routes in a risk assessment scenario. Accordingly a risk assessment approach was instituted to determine differences between …
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Agricultural spray droplet dispersion in turbulent windflow
Off-target contamination (or spray drift) during agricultural chemical application, arising from removal of small (diameter < 100 m) droplets from sprays by atmospheric or vehicle-generated cross flows, is investigated experimentally. The primary requirement for realistic wind tunnel studies is …
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Assessing Drift and Lateral Mobility of Flazasulfuron and Trifloxysulfuron Sodium
… via lateral relocation or during application via spray drift. Trials were conducted to evaluate flazasulfuron and trifloxysulfuron sodium tracking, runoff and drift in turfgrass environments. Field trials were conducted at six locations across the US to evaluate effects of irrigation, herbicide …
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The role of organophosphate exposure in the aetiology of depression and suicidality amoungst farm workers on wine and table grape farms in the Worcester area of the Western Cape Province, South Africa
… farm work are similarly at risk of exposure from spray drift and residue on crops, trees and leaves. An important association with the use of and exposure to pesticides is that of suicide in that OP&acirc;s are agents that are frequently used to commit suicide. However, being neurotoxins, it …
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The implications of improving the conservation value of field margins on crop production
… greater amounts of weed biomass than fully sprayed headlands, but grain yields were not significantly reduced. Soil compaction affected yield in one of the field experiments, but not the other, where soil density values were fairly uniform. No relationship was found between fertiliser …
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Postemergence control of annual bluegrass with mesotrione in Kentucky bluegrass
… determine the effect of nitrogen fertilization, spray volume, and adjuvants on annual bluegrass control. Conclusions from these studies include a need of multiple, frequent applications of mesotrione to control annual bluegrass; temperature influences mesotrione activity; increasing nitrogen …
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The mobility of endosulfan and chlorpyrifos in the soils of the Hex River Valley
… liable to cause soil instability or erosion. Spray drift during application is also a potentially significant mode of transport. Large peaks of pesticide loss are unusual and may be attributable to a single event; for example, a heavy, downpour only once a year is enough to account for the …