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Catalogue: GRDC Factsheets
Of SurfACe TemPerATure SPrAy OPerATiOnS in cooling night conditions airborne pesticides can concentrate near the surface and unpredictable winds can move droplets away from the target... During surface temperature inversions, air near the ground lacks turbulence... SOurCe GrAeme TePPer under a surface temperature inversion: air movement is much less turbulent so the air does not mix in the same way as during the day; airborne droplets can remain concentrated in the inversion layer for long periods of time; the direction and distance pesticides movement is very hard to predict; the movement of airborne droplets will vary depending on the landscape; and droplets or their remnants can move in different ways (figure 3)...
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Catalogue: GRDC Factsheets
Of SurfACe TemPerATure SPrAy OPerATiOnS in cooling night conditions airborne pesticides can concentrate near the surface and unpredictable winds can move droplets away from the target... During surface temperature inversions, air near the ground lacks turbulence... SOurCe GrAeme TePPer under a surface temperature inversion: air movement is much less turbulent so the air does not mix in the same way as during the day; airborne droplets can remain concentrated in the inversion layer for long periods of time; the direction and distance pesticides movement is very hard to predict; the movement of airborne droplets will vary depending on the landscape; and droplets or their remnants can move in different ways (figure 3)...
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Catalogue: GRDC Factsheets
Of SurfACe TemPerATure SPrAy OPerATiOnS in cooling night conditions airborne pesticides can concentrate near the surface and unpredictable winds can move droplets away from the target... During surface temperature inversions, air near the ground lacks turbulence... SOurCe GrAeme TePPer under a surface temperature inversion: air movement is much less turbulent so the air does not mix in the same way as during the day; airborne droplets can remain concentrated in the inversion layer for long periods of time; the direction and distance pesticides movement is very hard to predict; the movement of airborne droplets will vary depending on the landscape; and droplets or their remnants can move in different ways (figure 3)...
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Catalogue: GRDC Factsheets
Of SurfACe TemPerATure SPrAy OPerATiOnS in cooling night conditions airborne pesticides can concentrate near the surface and unpredictable winds can move droplets away from the target... During surface temperature inversions, air near the ground lacks turbulence... SOurCe GrAeme TePPer under a surface temperature inversion: air movement is much less turbulent so the air does not mix in the same way as during the day; airborne droplets can remain concentrated in the inversion layer for long periods of time; the direction and distance pesticides movement is very hard to predict; the movement of airborne droplets will vary depending on the landscape; and droplets or their remnants can move in different ways (figure 3)...
Related categories:
Catalogue: GRDC Factsheets
Of SurfACe TemPerATure SPrAy OPerATiOnS in cooling night conditions airborne pesticides can concentrate near the surface and unpredictable winds can move droplets away from the target... During surface temperature inversions, air near the ground lacks turbulence... SOurCe GrAeme TePPer under a surface temperature inversion: air movement is much less turbulent so the air does not mix in the same way as during the day; airborne droplets can remain concentrated in the inversion layer for long periods of time; the direction and distance pesticides movement is very hard to predict; the movement of airborne droplets will vary depending on the landscape; and droplets or their remnants can move in different ways (figure 3)...
Related categories:
Catalogue: GRDC Factsheets
Of SurfACe TemPerATure SPrAy OPerATiOnS in cooling night conditions airborne pesticides can concentrate near the surface and unpredictable winds can move droplets away from the target... During surface temperature inversions, air near the ground lacks turbulence... SOurCe GrAeme TePPer under a surface temperature inversion: air movement is much less turbulent so the air does not mix in the same way as during the day; airborne droplets can remain concentrated in the inversion layer for long periods of time; the direction and distance pesticides movement is very hard to predict; the movement of airborne droplets will vary depending on the landscape; and droplets or their remnants can move in different ways (figure 3)...
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Catalogue: GRDC Media
Recognition of conditions that lead to a surface temperature inversion is particularly important as the potential for spray drift is high when this occurs, according to industry authorities... Spray consultant Bill Gordon, whose work is supported by the Grains Research and Development Corporation (GRDC), says surface temperature inversions commonly develop overnight, when the ground loses heat and the low-level air cools. ".. Meteorologist Graeme Tepper, of MicroMeteorology Research and Educational Services, said when surface inversions exist pesticides in the air can move long distances at high concentrations near the surface and adversely impact non-target receptors, often in directions and locations that could not be estimated from general weather patterns. "..
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Catalogue: Broadacre Field Crops DAFF QLD
Appear as a moving carpet of dust' on grain or storage structures... In damp or high humidity conditions or in grain with a high moisture content, dense aggregations appear as a moving, slippery carpet of brown dust and endanger workers... Chemical control Fumigation in sealed storage, treatments applied to the surface of the grain can afford some control as adults leave the grain...
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Catalogue: Broadacre Field Crops DAFF QLD
Appear as a moving carpet of dust' on grain or storage structures... In damp or high humidity conditions or in grain with a high moisture content, dense aggregations appear as a moving, slippery carpet of brown dust and endanger workers... Chemical control Fumigation in sealed storage, treatments applied to the surface of the grain can afford some control as adults leave the grain...
Related categories:
Catalogue: Broadacre Field Crops DAFF QLD
Appear as a moving carpet of dust' on grain or storage structures... In damp or high humidity conditions or in grain with a high moisture content, dense aggregations appear as a moving, slippery carpet of brown dust and endanger workers... Chemical control Fumigation in sealed storage, treatments applied to the surface of the grain can afford some control as adults leave the grain...
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