Report ‘Green pesticides’

The BioBoost partnership has published a report about the results of a pilot, led by NIAB in the UK, relating to green pesticides. Green pesticides, are products whose constituent parts are derived from organic sources. The final product is considered to be ‘environmentally friendly’; causing minimal to negligible harm to human and animal health and to habitats and the ecosystem compared to other commercial products. In BioBoost, organic by-products from different crop and insect production systems were tested to determine the performance of biocontrol agents and mycorrhizal fungi.

The interim report “ Pilot green pesticides” can be found by ‘publications’ section.

The following results were obtained in conjunction with several commercial partners and commercial horticultural nurseries:

  • Incorporation of 10% v/v spent mushroom compost sustained an inoculum of entomopathogenic fungus in growing media resulting in improved control of vine weevil larvae
  • Frass as a topping material helped to repell vine weevil egg laying in Heuchera plants.
  • Fermented fruit waste liquor used as an attractant bait for spotted wing drosophila improved the control efficacy of low doses of insecticides.
  • Amendment of peat-based growing medium with spent mushroom compost improved root colonisation with arbuscular mycorrhizal fungi and growth of Fatsia plants.


the performance of biocontrol agents and mycorrhizal fungi


Current trials are also investigating the effect of organic amendments and arbuscular mycorrhizal fungi on the growth and flowering in roses. The report will be updated with the results of these trials in the beginning of next year.