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How-to Control German Roaches
Follow the standard control procedures but more frequent service may be required because of their rapid reproductive rate. Baits are particularly effective, but correct placement along junctions and/or in cracks and crevices in or near harborages is essential. Incorporating IGRs (insect growth regulators) into the service helps with long-term control.
An interesting note:
Occasionally, some have noticed an "albino roach" crawling around. This is not an albino roach it is a newly emerged roach after shedding its exoskeleton and prior to the the hardening" process where the new exoskeleton hardens and turns darker.
Some actual demonstration application photos Click here
Baiting for the German roach is probably one of the most challenging jobs for a pest control professional. The most important thing is to treat where the roach stays (harbors) and bait close to that resting spot. Many bait placements is better that a long thin bead of the bait because crowding may take place when feeding. Depending on the size of the colony will dictate the spacing of bait placements. For mild, or light infestations use a gel placement every 18" - 24" and do your best to locate any crack or crevice to insert the bait into. The placement of Gentrol Point Sources is an important addition to good control. These devices are a simple frame container with a filter paper disc below a glass ampoule which is crushed just prior to placement in the cabinet, or other closed area being baited. This is very important to effective and complete control. The cost is minimal and the results are greatly enhanced! Place these approximately every three to five feet of cabinet length and place them up in the top areas of the cabinet. Heavier infestation may a slightly closer spacing.
If the infestation is heavier, then the gel spacing will have to be reduced and spots made more frequently. Remember that many small placements are better than large sloppy placements. The spot has more surface feeding area for the roach to feed. It is important to follow up in a day or so to inspect the placements to make certain that an ample amount of bait is always present and is fresh. Baiting must be done close to where the roaches are harboring or aggregating. German roaches very infrequently travel no more than 4 - 5 feet from there primary harborage point. This should be used to your advantage when controlling them.
Baiting is almost an art. The art is inspecting to find the harborage points and then placing the baits as close as possible to the roaches in the harborage. Many times (almost 95% of the time) the German roaches cannot be seen, just fecal pellets are visible in the frame recesses of a cabinet door. Insert a small gel spot there...if you see fecal pellets, they will return, find and then consume the bait...then they will die. In about two days, (if baited adequately) you will notice a dramatic decline in the population,.... don't stop! You must go back to the places you previously baited and inspect to see if the bait is gone (consumed), or hardened and made unpalatable to the roach. Bait must be fresh and moist. Moisture is the primary attractant to roaches. One of the major constituents of the bait is water! After control is achieved, then the excess bait can be wiped off with warm-soapy water. I would wait for a few weeks before I made that determination.
Another hint is to remove the dishes after the roaches have been eliminated and wash the entire cabinet down with the same warm and soapy-water solution. This will remove any traces of roach fecal matter. The fecal matter contains an aggregation pheromone that causes the roach to aggregate into a clusters.
Once the roaches have been controlled, baiting may become unnecessary and maintenance may consist of only minimal spacing of Gentrol Point Sources on an every 3-4 month basis. The Gentrol point sources available from us are mare effective because of increased surface area and the higher concentration of growth regulator.
We recommend these products:
- IG Regulator
- MaxForce Gel Bait
- Delta Dust
- Crusade Duster
- Gentrol Point Source
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