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German Cockroach Control
DoMyOwnPestControl.com is your online source for roach control products and information.
If you have a German Roach problem, it could be that you are at your wits' end wondering how to get rid of one of the most stubborn household pests in existence. German Roaches get into everything, multiply rapidly, and can survive for several months without food and up to two weeks without water. These little guys definitely pose a challenge, but with the proper tools and products, you can win the battle over German Roaches by using the following steps:
German Roach Pictures
STEP 1- Keep the Place Clean
Sanitation is by far the most important component of any pest control effort! Failure to practice good housekeeping is the primary reason for outbreaks of German Roaches. Like most pests, German Roaches require 3 things to thrive-food, water, and harborage. If you can eliminate even one of these things through proper sanitation, the roach population will be forced to either die or move someplace else. We will discuss how to eliminate or drastically reduce the availability of each of the elements that roaches require for survival. First however, it is vital to understand that in order for any of the following IPM components to work against German Roaches, sanitation must continually be practiced and remain the backbone of the program.
STEP 2- Eliminate Food Sources
Eliminating food sources is a constant battle in German Roach control. While this effort involves a great deal of work and vigilance, the results are well worth the effort.
- Clean Kitchen Appliances. Roaches in your kitchen are probably living off of the months or years worth of grease and food spills under, behind, and alongside your appliances. The greatest problem spots usually include the refrigerator, dishwasher, stove, toaster, microwave, and underneath the kitchen sink.
- Empty Cabinets and Clean them out. Another common food source for German Roaches are the crumbs and food spills inside kitchen cabinets.
- Limit food consumption to one room of the house. Allowing food to be consumed in all areas of the home leads to crumbs and food spills that often go unnoticed and make tasty temptations for German Roaches. This practice contributes to the spread of an infestation to other areas of the home other than the kitchen.
- Vacuum the kitchen floor thoroughly each night before bed. German Roaches come out to feed at night. If you will practice your most rigorous cleaning rituals in the kitchen just before bed each night, there will be nothing or very little left for foraging roaches to snack on.
- Vacuum all other non-food areas of the home every 2 to 3 days. This practice contributes to overall sanitation and also helps to eliminate roach feces, skins, body parts, and egg sacs, all of which contain pheromones that attract other roaches to the same areas.
- Wipe down kitchen countertops with a disinfectant spray each night
- Empty pet food containers at night, or place them on the back porch or in a plastic bag.
- Store Food in Sealed Containers. German roaches are small enough to slip into the cardboard packaging that many foods are stored in.
- Use a trash can with a tight fitting lid, and take out the trash each night before bed.
STEP 3- Eliminate Water Sources
While it is nearly impossible to eliminate all water sources, even greatly limiting available sources will cause negative stress on a German Roach population. Fewer water sources to go around means that many roaches will die.
- Fix leaky faucets and pipes.
- Repair sweating pipes.
- Before bed, stop up sinks in the kitchen and bathrooms and dry them completely with a paper towel.
- Dry out the bathtub and shower completely and stop up the drain before bed.
- Place wet dish rags and sponges in an airtight plastic storage bag overnight, or place them directly in the washing machine.
- Pet water dishes should be placed outside overnight or be dried completely and refilled in the morning.
- Wet toothbrushes should be dried as best they can and sealed in plastic bags.
STEP 4- Spray 'em Dead
If the German Roach infestation is limited to the kitchen and bathroom only (i.e. you have not see any roaches in any other areas of your home) you may be able to get away with using baits only. In apartment buildings where roaches come down from other units through wall voids, it is absolutely essential to include dusts and roach sprays in your german roach control program. The idea with dusting and spraying is that the chemical settles where pest travel and hide-along baseboards, walls, and deep inside cracks and crevices. Immersed in enough chemical for a long enough period of time, German Roaches will begin to die.
- Dusts. The dusts that work best against German Roaches include Delta Dust and CB Borid Boric Acid. Using a hand duster and following label instructions, apply dust liberally underneath and behind baseboards, behind wall outlets, and underneath appliances such as washers and dryers. Dusts may also be sprinkled in the back of bathroom cupboards and cabinets, and applied liberally in wall voids. Dusts are usually effective up to 8 months, or as long as they remain dry.
- Residual Sprays. Suspend SC or Demon WP provide excellent control when mixed in a 2 gallon sprayer and applied at a low-pressure setting along baseboards, window and door frames, on the underside of furniture, behind bookshelves, and in other problem areas as listed on the product label. Residual sprays need to be reapplied every month to every 3 months, depending on the level of infestation. It is also a good idea to alternate products with different active ingredients each application. This will help prevent the roaches from quickly building up a resistance to any single active ingredient.
- Contact Sprays. Contact sprays will kill roaches immediately on contact, and can also be used to "flush out" roaches from suspected harborages. Contact Sprays for German Roaches include Cy-Kick Aerosol and 565 Plus XLO.
STEP 5- Use Roach Baits for Complete Control
Next to sanitation, the next most important and essential component to an IPM program for German Roaches is baiting. By using gel bait placements in areas of highest travel, German Roach infestations can be reduced by up to 90% or eliminated completely within weeks. The idea behind baits is that each roach that feeds on the poisoned bait can contaminate up to 40 other roaches by way of contact, feces, or the other roaches feeding on its poisoned carcass. This domino effect knocks out roach populations at an incredible rate. Top of the line superior bait formulations for German Roach control include Maxforce FC Roach Gel and Advion Roach Bait Gel. All are effective, but it could be that a given German Roach population prefers one formula over another, so you may want to try several baits in succession with a couple of weeks in between to measure success.
The following image shows a german roach next to a Maxforce FC Roach Bait Station:
Gel bait and bait stations should be placed in the following locations for greatest efficacy:
- Behind kitchen cabinets and counter tops.
- Behind wall hangings such as pictures, clocks, or posters
- Behind, next to, and under the stove.
- In the corners up under the sink and other cabinets.
- In stored paper bags and boxes.
- Around pipes, cords, and cables that come out of the wall.
- Behind and under bathroom fixtures.
- Behind the medicine cabinet and vanity.
- In any cracks or crevices around shelves or wood
Note: Residual spray insecticides should not be used in the kitchen or bathroom where bait placement exists, as the spray insecticides will repel roaches from baited areas, making it impossible for the bait to take effect and do its job.
Bait should be reapplied every 4 weeks or when placements appear to be used up, for heavy infestations.
STEP 6- Stop the Infestation for Good with IGRs
Even if baits, chemicals, and sanitation work to successfully kill off the present adult roach population, there will still exist egg sacs that hatch within 1 to 2 months after that last adult roach is sighted. That is why your german roach control program must include an IGR, or Insect Growth Regulator.
What is an IGR? An IGR is a chemical used to disrupt and impede the life cycle of insects in the egg and larvae stage of development. The idea with an IGR is that if an insect cannot reach adulthood, it cannot reproduce. In short, IGR is a form of "birth control" for German Roaches and other pests, which helps to keep populations under control by preventing current and future infestations.
- The most common and effective IGR used for German Roach control is Gentrol IGR, which comes in an aerosol, concentrated liquid, and point-source tablet.
- We recommend adding an IGR to your hand sprayer and sprayed right along with your baseboard chemical (Suspend, Demon, or Demand).
- For kitchen and bathroom areas, Gentrol Aerosol is the formulation of choice. Using the straw attachment, the IGR should be applied liberally to all visible cracks and crevices, including underneath, behind, and alongside appliances, behind outlets, along pipe collars, inside wall voids, and on top of kitchen cabinets near the ceiling.
- Continue to apply IGR every 4 to 6 weeks for up to 6 months, or until all signs of infestation have been eliminated.
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