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108285
Herbicide Application
Description
Advanced Agronomy (Disease Control) Mind Map on Herbicide Application, created by labradorlass on 25/05/2013.
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advanced agronomy
disease control
advanced agronomy
disease control
Mind Map by
labradorlass
, updated more than 1 year ago
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Created by
labradorlass
over 11 years ago
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Resource summary
Herbicide Application
Foliar
Contact
Translocated
selective
broad leaf
grass
non selective
Retention
keeping droplet on leaf
leaf properties
overcome waxy cuticle
wetters and stickers
reduce surface tension
need to get in plant quickly
environmental factors
evaporation
wax quantity
glasshouse plants have thinner waxy cuticle
water stressed = more wax
humidity
100% efficacy @ 95% RH 30% efficacy @ 40% RH
Anderson et al 1993
temperature
light
can be necessary for efficacy
causes activity
active plants absorb active product quicker
wont survive as long
rainfall
some plants need a longer period after rain than others
water loving or water hating
Soil
pre emergence
post emergence
don't know how long will last on soil
affected by water and OM
selectivity
broad leaf taken up through roots
grass weeds through shoots as emerge
All
some herbicides will not control some weeds
bigger plants are better at breaking down herbicides
hence need more to kill
translocated herbicides should be applied to actively growing plants
active plants are more reactive
if soil temp below 5C will not grow
if temp drops after taking up herbicide then effect slows accordingly
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