Deer – Elk – Rabbits – Hares
#1 Choice of Professional Foresters
Plantskydd’s effectiveness as an animal browse deterrent has been confirmed in operational conditions by major North American forestry companies since 1993, on hundreds of millions of conifer and deciduous trees of various species. Its long-term effectiveness—4 to 6 months over winter—is attributed to Plantskydd’s tenacity in sticking to plants—even under severe snow/rainfall conditions.
My company has used Plantskydd animal repellent since 2004. We use the product to deter elk and deer from browsing Douglas Fir and Cedar seedlings that we have planted. The efficiency of Plantskydd is amazing! We have saved hundreds of thousands of seedlings in the past 16 seasons! The product is easy to mix and apply with an industrial sprayer as well. I would highly recommend Plantskydd to any silviculture company that needs to stop any ungulate browsing and promote healthy, sustainable plantations.
–Jason Wishlow, Greanpeaks Holdings
The Forest Industry has conducted extensive field trials.
Why does it work so well?
Plantskydd works by emitting an odor that animals associate with predator activity—repelling the animal before it nibbles on plants. The odour is not unpleasant to the applicator.
Research by the National Wildlife Research Center, Olympia, WA, has proven odour based repellents are more effective than other repellent systems—where the animal needs to taste treated plants before being repelled. (see below)
Once animals are attracted to an area and begin feeding, it is more difficult to discourage them from returning. Plantskydd stimulates a fear-based response which will have them looking for somewhere else to dine.
Which repellents actually work?
” …Studies investigating trends in efficacy of deer repellents indicate that, of the 20 products tested, repellents with active ingredients that emitted sulfurous odors i.e.: bloodmeal or egg solids, generally provided the best results…”
“…Products that contained active ingredients which cause pain/irritation (capsaicin, allyl isothiocyanate), or illness (thiram) were less effective…”
“…Products that use a bitter taste (denatonium benzoate) were usually the least effective in reducing damage by herbivores. Repellents that were applied to plant surfaces were generally more effective than capsules or other devices that produced an odor intended to protect a specific area.”
MANAGING WILDLIFE DAMAGE to TIMBER RESOURCES
Conference Proceedings: Advances and Challenges
in Forest Regeneration, June 1-2, 2000
Dr. Dale Nolte, Dr. Kim Wagner, USDA/APHIS
National Wildlife Research Center, Olympia, WA
As an added benefit, Plantskydd acts as a foliar feed fertilizer (12N) for many types of plants.
Plantskydd’s active ingredient, dried blood, has long been recognized as an organic fertilizer.
Studies performed by Pennsylvania State University’s Department of Horticulture showed that the use of Plantskydd on a variety of flowering plants resulted in a fertilizing effect.
“All plants tested that were treated with Plantskydd were larger, had more flowers and generally had greener leaves. This response is typical of the response created by an increased level of fertilization.”
E. Jay Holcomb,
Professor of Floriculture Department of Horticulture,
Pennsylvania State University
Plantskydd® was first developed in Sweden
Plantskydd® was first developed in Sweden in 1991 in response to commercial forest plantations being decimated by deer, moose and rabbits. Their forest industry needed an animal repellent that could: last through severe weather and meet Sweden’s strict environmental laws.
Plantskydd’s effectiveness as a long lasting animal browse repellent was substantiated in Field Trials 1991-1994 and the results published in the Scandinavian Journal of Forest Research—J. Berquist & G. Olander, Swedish University of Agricultural Sciences—ASA Forest Research Station, 1996.
In Canada and the United States, Plantskydd’s effectiveness as an animal browse deterrent has been confirmed since 1994 in Operational Level Field Trials undertaken by large forest industry cooperators on millions of conifer and deciduous trees of various species. Plantskydd is now considered the most cost-effective and environmentally safe animal browse deterrent available.
#1 Choice of Professional Foresters
It is used as an animal browse deterrent by most leading forest companies, nurseries, private woodlot owners, and landscapers, as well as provincial, state and federal conservation agencies.