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Feature Friday: The rats have moved in

Destructive rodents have hitchhiked across the Interior from Lower Mainland

Rats have become the scourge of the Okanagan Valley becoming established in urban areas across the southern Interior.

With the provincial government showing no interest in engaging taxpayer dollars for a mass extermination effort, local residents have been left largely on their own to deal with rat infestations.

On a municipal level, the Regional District of South Okanagan-Similkameen (RDSOS) has gone the furthest in supporting rat extermination campaigns, focusing on rat infestations that originated in Naramata and the West Bench three years ago, working in tandem with Orkin Canada pest control.

Zoe Kirk, with the RDSOS pest and mosquito control branch, said Orkin provided a rat inspection property assessment to homeowners in those two specific areas, and if a trap program was called for over a 90-day period at a $250 cost, the regional district reimbursed residents for half that amount.

sa国际传媒淭he uptake results were most effective for Naramata, which went initially from 40 people in the program three years ago when we started it, to now about one or two,sa国际传媒 Kirk said.

Recent: West Kelowna looks for help with rat outbreak

Kirk said the regional district has invested in a public education program to inform local residents how to ward off rat infestations on their property.

sa国际传媒淲e have done a lot of public education about rats, and we give talks to continually remind folks this is about extermination. Itsa国际传媒檚 not a catch and release situation,sa国际传媒 she said.

sa国际传媒淲e have had people live-trapping and letting them go in the woods but that is a disastrous option. Rats are not meant to live in the woods so they usually end up just becoming someone elsesa国际传媒檚 problem if they can find a safe haven.

sa国际传媒淎nd that generally means an urban setting. Rats tend to follow humans because we are good sources of food and shelter.sa国际传媒

In the Kelowna-West Kelowna corridor, rat concerns have been expressed numerous times in recent years. Even West Kelowna Mayor Doug Findlater had to engage in rat extermination mode after finding the rodents showing up on his property.

sa国际传媒淚 had them in my shedsa国际传媒nd a problem under by hot tub, where they lived the heat, and I went trapping,sa国际传媒 he said at a council meeting last year. sa国际传媒淎nd successfully resolved itsa国际传媒擨 hope.sa国际传媒

Rats were enough of a widespread concern in the Kelowna South-Central Association of Neighbourhoods that it prompted a visit last year from Don Stolz, integrated pest management gardener with the Kelownasa国际传媒檚 parks division, to explain to association members how to deal with them.

Stolz told the sa国际传媒 this week that rat sightings have become common in Kelownasa国际传媒檚 Mission, downtown core, Glenmore and Rutland areas in the last three or four years.

sa国际传媒淚n the Raymer-Richter area where I live, I just caught one the other night. I have lived there for 23 years and I never saw any rats, not one, until just in the last three or four years,sa国际传媒 Stolz said.

This destroyed golf ball reflects the chewing veracity of rats. Photo: Barry Gerding/Black Press
sa国际传媒淢y neighbour alerted me about it initially, and we talked about it among our other neighbours as to how we can collectively deal with the problem. It doesnsa国际传媒檛 matter if you take all the rat proofing precautions in your own yard if the neighbour is not doing the same thing.

sa国际传媒淩ats donsa国际传媒檛 understand property lines. They go where they can find food, water and warmth. And they can really travel and cover a lot of ground.sa国际传媒

Stolz said reports from Toovey Heights residents of rats being spotted in various yards this winter was a surprise for him to hear, something which both he and long-time Toovey residents say has never occurred previously.

sa国际传媒淭hey can fit into some amazing places. If they can get their nose, face and and an ear inside an opening, they will get through even if their body is twice the size of the hole. If you think a hole might be too small for them to fit through, think again,sa国际传媒 Stolz said.

Frank Ritcey, provincial coordinator with WildSafe BC, tends to focus on bear, deer and coyote complaint issues, but the exploding rat population issue has gained the publicsa国际传媒檚 interest.

sa国际传媒淚f you take all our education materials and substitute rat for bear, it pretty much amounts to the same thing in terms of wildlife proofing your property,sa国际传媒 Ritcey said.

Recent:

He said the reason rats are suddenly showing up in Interior communities is a bit of a mystery, one he says that Thompson Rivers University students have begun doing preliminary research on.

sa国际传媒淭hey are able to get around by transferring themselves in or on trucks or other shipped goods from the Lower Mainland and if they find an urban setting, they can thrive,sa国际传媒 he said.

sa国际传媒淲e have cameras along lots of trails in the region but we never see any rats. We see lots of other wildlife and rodents but never any rats. They donsa国际传媒檛 survive well in the wild.sa国际传媒

Nolan Newman, with Orkin Canada, holds up modified rat catcher using a PCV tube as a runway drawing rats into the trap set up in the middle of the tubing. Photo: Barry Gerding/Black Press
Nolan Newman, B.C. Interior and Yukon branch manager for Orkin Canada in Kelowna, thinks the rat outbreak in the Interior can be traced to a garbage strike in Vancouver more than a decade ago, where garbage was allowed to accumulate on the streets.

sa国际传媒淎fter that strike, we began to see rats showing up in areas never seen before throughout the Okanagan, Kamloops, Salmon Arm, Creston, Cache Creek, Castlegar and Nelson,sa国际传媒 Newman said, adding rats set up home in cars, semi-trucks and truck transport loads, essentially hitchhiking their way to Interior communities.

sa国际传媒淢y daughter came back from Vancouver one time and she had three rats hiding in her vehicle. With transport trucks, you often see pallets of something stored outside waiting to be loaded, and rats will nestle in among them traveling with the shipment wherever it is going.sa国际传媒

And if they arrive in your community unhindered, rats multiply quickly at a far greater level than even rabbits.

sa国际传媒淩ats have a shorter gestation period. They become sexually mature very early in life, six weeks of age, and they can have a large litter of 10 to 12 babies at a time. Females can give birth to one batch of babies and at the same time be pregnant with the next batch,sa国际传媒 Ritcey said.

sa国际传媒淭he gestation period is only about three weeks. Itsa国际传媒檚 very short.sa国际传媒

Ritcey is working with Kirk in Penticton to expand the rat control brochure initiative for the South Okanagan for distribution to the Central and North Okanagan regions. The City of Kelowna also has information on the city website about how to address a rat problem on your property.

Rats are a pest for two key reasonssa国际传媒攖hey are poisonous and destructive to vegetation and property.

They like to hide around house soffits or vents, underneath sheds and woodpiles, or in compost. Rats are seeking warmth, food and water. And they have a peculiar sweet tooth for electrical wiring, which can cause headaches for vehicle and house owners.

sa国际传媒淭here is something in the plastic cover of the wiring they can smell and love to chew on, which is not uncommon for other rodents as well like marmots,sa国际传媒 Ritcey said.

Another dining favourite for rats is bird seed, to the point where bird feeders are not recommended where rats are present.

sa国际传媒淒eer can get into bird feeders and make a mess on the ground, and rats come along and feed off the leftovers on the ground. Bird seed is high in calories so for rats itsa国际传媒檚 big caloric hit and provides a food source during the winter,sa国际传媒 Ritcey said.

Kirk said they discourage bird feeder use, instead advising residents consider other natural foliage which birds can feed on but takes rats out of equation, such as sunflowers, millet and oat grasses and fruit berries.

sa国际传媒淵ou cansa国际传媒檛 hang bird feeders high enough, either,sa国际传媒 she added. sa国际传媒淚 have seen rats scale up wires that I wouldnsa国际传媒檛 think was possible to get at a bird feeder. There is no safe place to put them. The best thing you can do is stop using bird seed.sa国际传媒

Stolz noted that any potential food that drops on the ground, from bird seed to fruit and nuts, should be raked up daily.

sa国际传媒淲e treat rats like any other pest in the city. We have rats on our city properties, such as parks, that we have to deal with. And the expectation is for local residents to do the same.

Environmental and moral ways to trap rats

sa国际传媒 Donsa国际传媒檛 use sticky traps because such devices can accidentally trap other animals

sa国际传媒 Chemicals are discouraged because other wildlife can feed off disoriented rats and pass on the chemical into the wildlife eco-system

sa国际传媒 Rat traps should be cover proofed to prevent the killed rodentsa国际传媒檚 exposure; a cut-out milk crate secured by a rock works and covered rat traps are sold in hardware departments

sa国际传媒 Rat trap bait suggestions include peanut butter, Nutella, marshmallows, dates, raisins, baking grease, WowButter, Provoke gel, dark chocolate

sa国际传媒 Rats are very intelligent as all bait options donsa国际传媒檛 work for all rats

sa国际传媒 Dead rats should be put in plastic bag for the landfill

sa国际传媒 Rat traps can be re-used multiple times as the scent left behind by captured rats can be an attractant for others to follow

To report a typo, email: edit@kelownacapnews.com.

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barry.gerding@blackpress.ca

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Barry Gerding

About the Author: Barry Gerding

Senior regional reporter for Black Press Media in the Okanagan. I have been a journalist in the B.C. community newspaper field for 37 years...
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