108285
Description
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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|
Herbicide
Application
- Foliar
- Contact
- Translocated
- selective
- broad leaf
- grass
- broad leaf
- non selective
- Retention
- keeping droplet
on leaf
- leaf properties
- overcome waxy cuticle
- wetters and stickers
- reduce surface tension
- need to get in
plant quickly
- need to get in
plant quickly
- reduce surface tension
- wetters and stickers
- overcome waxy cuticle
- environmental factors
- evaporation
- wax quantity
- glasshouse plants have
thinner waxy cuticle
- water stressed = more wax
- glasshouse plants have
thinner waxy cuticle
- humidity
- 100% efficacy @ 95% RH
30% efficacy @ 40% RH
- Anderson et al 1993
- Anderson et al 1993
- 100% efficacy @ 95% RH
30% efficacy @ 40% RH
- temperature
- light
- can be necessary for efficacy
- causes activity
- active plants absorb
active product quicker
- wont survive as long
- wont survive as long
- active plants absorb
active product quicker
- can be necessary for efficacy
- rainfall
- some plants need a
longer period after
rain than others
- water loving or
water hating
- water loving or
water hating
- some plants need a
longer period after
rain than others
- evaporation
- keeping droplet
on leaf
- Contact
- Soil
- pre emergence
- post emergence
- don't know how
long will last on soil
- affected by water and OM
- affected by water and OM
- selectivity
- broad leaf
taken up
through roots
- grass weeds
through shoots
as emerge
- broad leaf
taken up
through roots
- pre emergence
- All
- some herbicides
will not control
some weeds
- bigger plants are better at
breaking down herbicides
- hence need more to kill
- 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
- if temp drops after
taking up herbicide then
effect slows accordingly
- some herbicides
will not control
some weeds
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