The alternative for deterring browsing by deer, elk and moose.

In Europe, hunters and foresters have long used sheep wool as a repellent against deer. However, its application is labor intensive, time consuming and the protection is short lived. Seeking to overcome these issues, Kwizda Agro sought an alternative and the idea of using ‘sheep fat’ as an active ingredient was born. Through our expertise and experience in developing effective and innovative formulations, Kwizda Agro took ‘sheep fat’, the active ingredient in TRICO® and created an effective deer repellent.

Proven effectiveness and efficiency.

With more than 70 field trials, over 20 years of commercial use, and registered in 21 European countries and North America, TRICO® uses natural ingredients to deter deer and other unwanted animals from summer and winter browsing, antler rubbing and debarking damage to agricultural crops, trees, shrubs, nursery seedlings, ornamentals and turfs. It targets the senses of taste and smell, producing long-lasting protection after a single application.

TRICO® discourages damage by deer, elk or moose. Its dual mode of action creates both a scent and taste barrier. Residual repellency up to 6 months.

Formulated to start working upon application. Water resistant once dried. Dries odorless to humans. Long lasting protection with a single application.

Benefits of TRICO®


Effective on deer, elk and moose

  • TRICO® prevents browsing, rubbing and debarking without harming the deer population
  • Based on a tried and trusted Foresters repellent, TRICO® brings ‘Innovation from Tradition’



  • Use on crops, seedlings, forests, ornamentals, turfs
  • Ready to use spray product, quick and simple to apply
  • Suitable for all terrains, wherever one can carry a knapsack sprayer


Wildlife Deterrent

  • Dual mode of action: Repels by scent and taste
  • Apply Year-Round: Long lasting protection with single application
  • Reliable & Rainfast: Excellent rain resistance provides long lasting protection


Naturally Sourced

  • TRICO® is a sustainably sourced natural active ingredient
  • Non-Irritating odor to humans
  • Formulated to ensure excellent compatibility that is safe to both humans and animals


Gold Standard in Forestry

  • TRICO® is a highly effective repellent
  • Proven in over 70 field trials 
  • 20 years of satisfied customer use
A modern tool for forest management

TRICO® protects forests and agriculture from deer, elk and moose damage.

Effective Protection
Natural protection against browsing, debarking and rubbing
  • TRICO® is a true success story. A deer repellent developed to provide foresters and farmers with the right solution to protect their trees and fields against browsing, antler rubbing and debarking damage.


  • The specially designed formulation of TRICO® , provides long lasting protection. TRICO® effectively repels game through taste and smell. TRICO® can be applied year-round. The weather resistant formula starts working upon application.


  • TRICO® is registered in 21 European countries and North America. With 20 years of commercial use TRICO® is the European market leader.
Watch our TRICO® Product Use Videos

TRICO®: Application on deciduous trees against deer browsing

TRICO®: Application on coniferous trees against deer browsing

TRICO®: Application on conifers against fraying

Contact your local Veseris representative

Contact your local Veseris representative or authorized dealer for more information on TRICO® or visit

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