Herbicide Application

Description

Advanced Agronomy (Disease Control) Mind Map on Herbicide Application, created by labradorlass on 25/05/2013.
labradorlass
Mind Map by labradorlass, updated more than 1 year ago
labradorlass
Created by labradorlass almost 11 years ago
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Resource summary

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