These trees are severely stressed and nearly defoliated due to elm leaf beetle activity; tree injection using imidacloprid as the active ingredient is fast acting and persistent with two or more seasons protection.
Feeding beetles and larvae will start to die on partially defoliated trees within ten to fifteen minutes after treatment. Treated February 14th 2007 Location Bobinawarrah Road Milawa.

The results are dramatic with improved tree health and vigour, direct vascular injection with imidacloprid and its analogues has been scientifically proven as it induces systemic acquired resistance aka SAR, all injected trees were not watered and relied solely on rainfall.