Skrem rådyrene med godlukt

I forbindelse med (den for min del nyoppdagede) rådyrplagen er det spontanopprettet en hurtigarbeidende komite bestående av Berit og meg. Her er våre foreløpige resultater:

• Preparatet Rå O’dør ble anbefalt i et svensk nummer av ‘Hagen for alle’ i 2004. Selv under hardt press blånekter Felleskjøpet-utsalg på begge sider av Oslofjorden på at dette middelet fins i Norge.
• Bladet ‘Hageglede’ anbefaler å spraye filler med såpe og parfyme og henge dem i nærheten av løker og fruktbusker/trær. Såpetrikset er det forskningsmessig belegg for, se kopi av abstractet nedenfor. Det er særlig innhold av talg som gir såpen sin anti-rådyrakige effekt. Som man ser, ga parfyme i tillegg til såpe  ikke bedre resultat enn såpe alene. Det tror jeg mine to maskuline medborgere her på Kuretoppen er lettet over.

THE EFFECTIVENESS OF SOAP IN PREVENTING DEER BROWSING
MICHAEL J. FARGIONE, Department of Natural Resources, Cornell University, Hudson Valley Laboratory, Highland,
12528-0727
MILO E. RICHMOND, U. S. Fish and Wilslife Service, New York Cooperative Fish and Wildlife Research Unit, Cornell
University, Ithaca, NY 14853-3001
Abstract: A series of bioassays was performed to evaluate the effectiveness of soap and soap components as deer (Odocoi virginianus)
repellents. Sweet-corn plots protected with tallow-based soap bars, nontallow bars, and those sprayed with commercial repellent Hinder’,
experienced significantly reduced browsing compared with untreated plots. Damage top protected with tallow-based soap was less than
damage to nontallow soap plots, while Hinder’-treated plots had intermediate damage. In a second bioassay, 2 spray applications of soap were
found to be as effective as soap bars in preventing browsin native vegetation over a 126-day period. The addition of perfume did not enhance
the repellent effect of the soap sprays. Finally a range of individual soap components were evaluated on apple prunings for their repellent
properties. All components pro ‘ at least limited repellent effects, and plots protected with tallow fatty-acid soap bars, commercial soap bars,
and soap perfume significantly less damage than untreated plots. Tallow fatty-acid soap reduced damage significantly more than coconut
fattysoap, and tallow appeared to be a major component responsible for soap’s repellent properties. Soap-bar applications to newly planted
apple trees were estimated to cost $94/ha (2.74 acre), and were less expensive than typical commercial repellent pro during the first growing
season. However, growers should consider alternative repellents after that time, as soap’s cod effectiveness decreased due to the small
sphere-of-influence of individual bars, and the increased labor costs associated with applying multiple bars to individual trees. Growers using
soaps should practice aggressive vole management, as field observation suggest soap-treated trees are more susceptible to vole damage.
Proc. East. Wildl. Damage Control Conf. 5:68-74.1992,