San Diego County, San Diego Rat Control Situation:
Hi David, Is a UV blacklight still useful, exterior-wise, if it rains after the rodents leave their urine stains? I am in the process of performing exterior maintenance to better exclude my roof rats. 1) I have a 25 year old cedar shake roof in San Diego California with openings under each shake along the rake edge of the roof at the gable ends of my house. There's no drip edge, i.e. under the shakes I have roofing paper (now somewhat curled) that runs more or less up to and rests right atop the fascia board. Because I have skip sheathing, and since the cross section of a shake is a wedge that is up to one inch at the upper, thick end, this appears to create many huge entry points along the rake edges even though the sheathing is rabbeted into the fascia board. As a result, I'm thinking of getting a UV blacklight to use outside the house to sleuth for urine stains along the upper edge of the gable end shakes and fascia boards. My question is, how easily does the winter rain wash away the urine, rendering this a pointless exercise? 2) I noticed a new product called "rat-out gel" and was thinking of applying it along the rake edges mentioned above. Or, maybe I should just buy many rolls of X-Clude and use that instead. Or maybe both. Any comment? Thanks very much for your website, Doug
My response: First off, I do not have experience using UV lights to detect rat urine. But I do suspect that rain will severely limit the effectiveness of this approach. I have never heard of Rat-Out Gel or XClude, but I typically stick to physical barriers rather than repellent type devices. If your roof makes this impossible, you might have a tough time keeping the rats out.
San Diego Rat Control Tip of The Week
Different Types Of Rat Snap Traps
Spring traps for big rodents, such as rats or squirrels, are powerful enough to break the animal's neck or spine. They may break human fingers too, while a customary spring-based mousetrap is probably not going to break a human finger. Rat spring traps may not be sufficiently delicate to spring when a mouse takes the bait.
A rat cage trap is a metal enclosure box-shaped gadget that is planned principally to get rats without killing them. Food bait (not poisoned) is placed in the cage trap. When an animal gets into the cage and moves towards the bait, the component triggers and shuts the door. The animal is caught alive and without injury. The animal can be relocated somewhere else or killed subsequently.
Glue traps are non-poisonous sticky glue that are spread over card sheets and kept in places rats visit, which gets them stuck to it when they pass over it. The rat will die from dehydration and suffocation. A bait may likewise be set on the cardboard to attract the rats.
Another type of non-deadly trap is where the wires used in its construction are cut and framed into a funnel shape directed to the cage's body. This design is usually dome-shaped with the funnel at the crown. Rats are very adaptable and can push through the smaller opening into the confine, but can't escape because of the closures of the wires poking them in the face. The advantage of this design is that it can catch more than one rat in a setting.
