Pesticides - stem injection treatment


Candidates must already hold a PA1/PA6 qualification, see:

Unlike traditional Japanese knotweed herbicidal treatment methods, which are applied to the surface of the leaves of the plant, stem injection targets the application of a controlled quantity of herbicide directly into the core of the plant. This direct targeting of the herbicidal application enables stem injection to be the least insidious method of eradication.

Stem injection is not weather dependant – traditional spraying methods are severely compromised by weather conditions and cannot be applied during heavy winds or rain.

Stem injection can 100 per cent be safely applied in an area where TPOs (Tree Preservation Orders) have been issued and traditional spraying and mechanical removal methods are not suitable, or will result in severe damage to other vegetation.

Stem injection has no impact on any surrounding vegetation or wildlife.

Traditional spraying methods can cause damage to any surrounding vegetation and can cause harm to local wildlife.

Stem injection is accepted and authorised by the Environment Agency for use on organic approved farms, without causing the loss of their organic status.

Due to the labour intensiveness of stem injecting it is particularly effective when used on smaller site or sites that carry environmental issues, for example watercourses and sites where TPO’s are in force

Course Content

Delegates attending this 1-day course will learn about:

  • legislation
  • environmental issues
  • reading and understanding product labels
  • Personal Protection Equipment
  • transportation and storage of pesticides and equipment
  • making an Environmental Assessment
  • understanding the term 'near water'
  • priming and using the Stem Injection System
  • essential record keeping


12 per course




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Last updated: 20 August 2018 15:36:38