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RODENTS
Rats are perhaps one of the most destructive pests that you are likely to encounter. Once they gain access to your property, they will cause trouble by contaminating food products, nesting, gnawing on structures, and by spreading parasites and diseases to humans and domesticated animals.

There are two main species of Rat that are prevalent here in the Philippines. These are the Brown Rat (aka Norway Rat) and the Black Rat (aka Roof Rat). Both species of rats are highly adaptable, and they can be found in a wide range of residential, agricultural and industrial structures and areas. Rats breed quickly and left untreated, they are likely to multiply quickly and become a major issue. It is essential that you take action upon the first sign of a suspected rat infestation as this will drastically reduce the length of time needed to effectively control an infestation.
Brown Rat
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The Brown Rat (Rattus Norvegicus) or Norway Rat is the natural host for the Seoul Hantavirys, causing hemorrhagic fever with renal symptoms (HFRS) in humans. Despite its name, the Norway rat is believed to have originated in Asia, possibly Northern China. Brown rats are now found on every continent in the world.

Characteristics
  • Up to 40cm in length
  • Blunt nose and small thick ears
  • Powerful body and strong front legs,weighing on average 300-500g
  • Tail is 85% of the length of its body
Lifecycle
  • Gestation period 21 days
  • Sexual Maturity 10 - 12 weeks
  • Average of 7 per litter
  • Adult female can have 3-6 litters per year
  • Lifespan 1-3 years
Diet
  • Omnivorous but preferred food is cereal
  • Daily intake 30g of food, 60ml of water.
Black Rat
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The Black Rat (Rattus Rattus) or Sewer Rats are very similar in appearance to brown rats, but they are slimmer and smaller, with relatively larger ears and a longer tail. Despite their name, they come in a variety of colours. They are extremely agile and are known to spread a number of diseases, some of which are incurable.

Characteristics
  • 16-24m in length
  • Tail is longer than the body and head .
  • They have a pointed nose, large ears and a slender body
  • Weighing between 150–200g
Lifecycle
  • Gestation period 21 days
  • Sexual Maturity 12 - 16 weeks
  • Average of 10 per litter - 3-6 litters per year
  • Lifespan typically 12 months
Diet
  • Omnivorous but preferred food is fruit
  • Daily intake 15g of food,15ml of water.
INSPECTION
Both species of Rat are active all year round here. As such, it is worth checking periodically, as the sooner you spot a potential rat infestation, the easier it will be to eliminate. When DBM Pest Control visit your property, we will carry out both an external and internal Inspection in order to ascertain:

  • Species of rat

  • Level of infestation

We will concentrate on locating signs of rats in dark sheltered areas, perhaps under wooden decking, heavy foliage, wood piles, sheds, utility rooms, or in areas where garden debris has been allowed to accumulate.

Droppings Rat droppings are brown, cylindrical pellets that are usually about 1/2 -1 inch long and about 1/8" in diameter.

Burrows - Rats can dig burrows along structure foundations and walls, around plants, bushes, shrubs and around and under yard debris. The entrance/exit holes of burrows are typically 2-4 inches in diameter and are usually smooth from repeatedly being walked on and rubbed by the rat's belly.

Runways - Rats prefer to use the same path over and over to get from nesting areas to food and water sources. This repeated use of the path will create "runways" that will be noticeable. Grass will be pushed down or there will be small furrows or depressions on the soil.

Gnaw Marks - Rats' teeth grow quickly as they constantly gnaw on hard objects, usually to gain entry to new harborage areas or in search for food. Look for wood and pipes that show indications of gnawing.
INTERNAL INSPECTION
Once rats have moved indoors, especially in residential structures, you will quickly become aware of their presence and hear them moving around inside the floors, walls, or roof voids as they forage for food. There are several signs of a rat infestation to look for indoors:

Droppings - Rat droppings.

Urine - Rats urinate frequently and the urine has a pungent, musky odour. This will be most noticeable in the rat nesting area. Rat urine is fluorescent and is visible under a blacklight.

Grease or rub marks - Rats like to travel with one side of their body rubbing against a vertical surface and since they travel the same path again and again, over time a greasy grey mark will be left behind. Typically, you will find these marks on beams, rafters, baseboards, and the bottom of door frames.

Squeaking or gnawing sounds
- While rats like to hide as much as possible, they are rarely quiet intruders. Following the sounds can help locate their nesting areas.

Food tampering - Check food packages in cupboards and pantries for evidence that rats have gnawed into the package or otherwise tampered with the food.
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