RI, MA EHS Pest Control Blog

Rats: Holiday Spirit, in Rodent Form

During the holidays, if kids become brats, you can shout with a straight face, “Start acting like rats!’’ According to a study in the journal Science, University of Chicago researchers discovered that lab rats can show empathy — a quality not previously demonstrated in rodents — at levels that are rare even in primates.

Free rats sensed distress in caged rats and worked tirelessly to free them. When chocolate chips were added to the experiment, the free rat did not selfishly gobble them up and let the caged rat languish. It still freed the other rat and shared the sweets. Researchers hope their observations will inform studies of human empathy. Despite the rat’s image as the first creature to abandon a sinking ship, the new finding may inspire a rising tide of concern for one’s fellow beings, especially during the holidays. If even rats put others first, surely humans can, too.

Source = Bostonglobe.com

George Williams,
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA 

Rat Bites Subway Rider at Station

New York transit workers said a rat bit a subway rider on the foot while she was waiting for a train at a downtown station.

Transit sources told the New York Daily News the woman, who was described as in her 20s, was sitting on a bench at the Brooklyn Bridge-City Hall station at about 9:30 a.m. Monday when the rodent ran up and bit into the flesh of her foot.

"She was pretty frantic and upset," one transit worker said. "You could actually see the bite."

Authorities said the woman was treated at New York Downtown Hospital and released.

Officials with Transport Workers Union Local 100 said rats are becoming more common at stations because of infrequent garbage collection and poor seals on trash storage rooms.

City transport officials declined to comment, the Daily News said.

Source: DailyNews.com

George Williams,
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA 

Defending itself from a lawsuit claiming that an Illinois man found a dead mouse inside a can of Mountain Dew, PepsiCo contends that a rodent would have disintegrated and been transformed into a “jelly-like” substance between the time of the soft drink’s bottling and the day the plaintiff reportedly purchased the soda from a vending machine at his office. In a court response to a motion filed by Ronald Ball--who claims to have found the dead mouse in a Mountain Dew can about three years ago--PepsiCo filed a fascinating/revolting affidavit from Lawrence McGill, a veterinarian who noted that he was “familiar with the effects an acidic fluid, such as common soda drinks including Mountain Dew, will have on mice and other animals.”

According to McGill, if a mouse is submerged in Mountain Dew between four and seven days, the rodent “will have no calcium in its bones and bony structures.” During those days of soft drink immersion, “the mouse’s abdominal structure will rupture.” Additionally, “its cranial cavity (head) is also likely to rupture within that time period,” McGill noted.

After 30 days exposure to Mountain Dew, “all of the mouse’s structures” would have disintegrated to the point that it would not be recognizable. In fact, “the mouse will have been transformed into a ‘jelly-like’ substance.” The only part of the rodent that could possibly survive, added McGill, was “a portion of the tail.”

PepsiCo contends that Ball, 52, opened his can of Mountain Dew 74 days after it was bottled at a PepsiCo facility in St. Louis. The company alleges that Ball has provided “no evidence” that the mouse was inside the can when it was sealed in August 2008.

In his Illinois Circuit Court lawsuit, which is pending in Madison County, Ball alleges that he opened the Mountain Dew can, “took a drink, and immediately became violently ill such that he began to vomit.” Subsequent to Ball being stricken, “the contents of said can of Mountain Dew were immediately poured into a styrofoam cup wherein a dead mouse was found.”

The rodent was eventually turned over by Ball to a PepsiCo insurance adjuster. McGill, pictured above, subsequently examined the animal and concluded that it was a young mouse or rat, no older than four weeks old at the time of its death. The rodent, according to his affidavit, had not even been born when the Mountain Dew can was sealed, and was already dead when it “entered the Mountain Dew fluid.”

McGill reported that the pH level of Ball’s Mountain Dew can was 3.43, which according to the veterinarian “indicates the fluid was acidic and within the normal range for Mountain Dew.”

George Williams,
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA 

HantaVirus Found in Trapped Rodents

Six rodents trapped during routine monitoring in the last week in North County and East County have tested positive for the potentially-deadly hantavirus.

Infected rodents rarely pose a danger to people if they are in the wild and there has been just one non-fatal human case in the county, in 2004. But people can inhale hantavirus by stirring up rodent droppings, then get sick and even die. There is no treatment, vaccine or cure for hantavirus infections, which are deadly in 38 percent of cases.

“People should never sweep up or vacuum rodent droppings or nesting material when they find it,” said Jack Miller, director of the County Department of Environmental Health. “Instead, they should ventilate closed areas for at least 30 minutes, and then carefully use bleach or a full-strength disinfectant before removing them.”

The best way people can prevent the disease is to keep mice out of houses, garages and sheds by sealing holes larger than the size of a dime, County officials said.

Hantavirus can cause hantavirus pulmonary syndrome (HPS), which begins with flu-like symptoms but can grow into severe breathing difficulties and even death.

The rodents that tested positive during the last week included: two deer mice from Campo; one deer mouse each from Carlsbad and Escondido; one harvest mouse from Oceanside and a vole from Carlsbad. Thirty-seven rodents have tested positive for hantavirus in the county this year, compared to 21 in 2010.

Source: Associated Press

George Williams,
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA

UPDATE: Wal-Mart Deli, Bakery Reopen After Rodent Problem

The deli and the bakery at the Wal-Mart superstore in Lebanon have reopened after being shut down for a rodent problem.

News 8 initially reported the problem on Thursday, Aug. 4. A store spokeswoman said the problem was first discovered at the end of June but that pest control efforts were unsuccessful. The spokeswoman would not say what type of rodent had gotten into the store.

Here is the complete statement the company issued on Thursday:

"Unfortunately it has come to our attention that rodents have found their way into our store in Lebanon, Pa. We are aware of the situation and we are working to resolve this issue.

As part of our commitment to food safety, the bakery and deli remain closed until the problem can be corrected. We’re working with a pest control company, a professional cleaning service and the Department of Agriculture to remedy the situation.

We make every effort to ensure our stores are clean and pest free and apologize to our customers for this inconvenience. Once the Department of Agriculture inspects our store and gives us the okay to re-open, we will."

On Friday, a company spokesperson updated the situation, saying the store had passed the inspection and the deli and bakery are open for business

Source = wgal.com

George Williams
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA

Squirrels Do 17% of the Damage to Fiber Optic Network

Fred Lawler, senior vice president of global field services at Level 3, said that "squirrel chews" account for a whopping 17 percent of the company's damage repairs this year, across 57,000 miles of intercity and 27,000 miles of metropolitan fiber.

Lawler noted, "Of all the animals in the whole world, almost all of our animal damage comes from this furry little nut eater. Squirrel chews account for a whopping 17% of our damages so far this year! But let me add that it is down from 28% just last year and it continues to decrease since we added cable guards to our plant. Honestly, I don’t understand what the big attraction is or why they feel compelled to gnaw through cables. Our guys in the field have given this some thought and jokingly suspect the cable manufacturers of using peanut oil in the sheathing. If you have any new ideas on how we can combat these wayward rodents, I’d love to hear from you. We are always looking for ways to improve."

George Williams
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA