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Posts: 3
Reply with quote  #1 

Have a four family rental with three of the apartments having a roach problem, any suggestions short of an exterminator, please let me know.  Hvae been spray bombing the units as of now.


Posts: 3,801
Reply with quote  #2 

The best thing I have heard of to deal with roaches is Combat Gel.  I've never used this product, but it has been recommended highly by a lot of LLs.  It costs about $8 a tube here, but is supposed to be really good.  Much better than the sprays and bombs.  Don't bomb when you use this I am told.  This is a clear gel that you use like caulk, running beads around baseboards, inside cabinets, etc.  You are going to need several tubes.  Read the directions well to make sure you use care around children and pets.  Treat all 4 units, not just the 3 infected ones.  (Otherwise they will all run to the clean unit.)  Try this and repeat usage about 10 days later.  Hopefully it will work and you won't need an exterminator.  It will take several days to kill them, so be patient.


Posts: 45
Reply with quote  #3 

We had a mega-roach infestation when we purchased our 5 family. After 3 visits from the exterminator, haven't seen a live roach in months.

Did set us back a few hundred $'s though.

Posts: 43
Reply with quote  #4 

Terminex and then sign up for their yearly plan.  Well worth the money if you live in an area with this type of problem.

Rental Property Repair, LLC ( is a rental and investment property repair and renovation company that services Mercer & Burlington Counties in New Jersey and Bucks County, Pennsylvania.

To inquire about our services you can visit us online at

Posts: 2
Reply with quote  #5 
WHAT ABOUT ANTS!!!,  Does nny one have any good suggestions for ANTS!!,
My tenant is resoniably clean but for some reason the anuts seem to just overwhelm the place from time to time..


Posts: 3,801
Reply with quote  #6 
There are some granules you can sprinkle around the building for ants, I can't seem to remember what the name of the stuff was, but it comes in a big bag like grass seed.  I'll see if I can find the name for you.

OK, I went back and checked.  I have the name of 2 products for you.  The first one is called Terro.  It was the product I was thinking of but couldn't remember the name.  I have used this product and it worked reasonably well.

Another product that was recommended by another LL was MaxForce Ant Granules.  I have not used these, but the other LL said they do work.  Try inquiring about these two products at your big box store.

Edited later:
I also read recently that you can put out instant grits or a yeast and sugar mixture.  The instant grits are supposed to dehydrate the ants by making them swell and taking the water out of their digestive systems.  The yeast is supposed to cause them to swell and die of the trapped gas inside.  Haven't tried either method yet, but if someone tries these before I do, please post back.  I'm interested in their effectiveness.  A nonpoisonous method that would be harmless to people and pets would be a good trick to have in your arsenal against pests.

Posts: 64
Reply with quote  #7 

boric acid mixed with sugar 1/2 & 1/2


Posts: 1
Reply with quote  #8 

Grant's Ant Bait!!!!!!!! Works perfectly.


Posts: 123
Reply with quote  #9 

Maxforce gel bait. It will take 45 days and 3 applications to have a falling off the wall infestation to roach free. Cut off water for the roaches, food source , reduce places to hide.

Here read this thread it will tell you all and probably MORE than you want to know.


Roaches (by mike [MO]) Posted on: Jan 19, 2008 4:44 PM

Get rid of nasty tenants. Use combat gel or max force

Roaches (by Noel [PA]) Posted on: Jan 19, 2008 4:54 PM

Ditto Mike,

1st get rid of the problem, tenant, tenant with "new" used appliances, tenant with "dirty habits." The combat gel is sooo easy to use, also the boric acid powder.


Roaches (by Robert,Ontario,Canada [ON]) Posted on: Jan 19, 2008 6:14 PM

First there are elements of survival which are food, water and place to live. If something is infested with roaches one can toss it out on a cold day or night then the roaches will make a run for it. Chalking all the cracks in the baseboards then fill around the water and drain pipe with insulation foam will eliminate the homes where the roaches can start a new family. Fix any dripping faucets or remove any water source. Drain the defrost pan in the refrigerator then put bleach in the pan. Clean thoroughly behind the fridge and stove removing any food source. Finally use max force, combat gel along with bait stations. Roach traps work if placed around the perimeter of the room. The above is called Integrated Pest Control or IPM. In other words make it impossible for roaches to live. Roaches always travel around the perimeter of the room never in the centre of the room. Had a problem with roaches over a year ago now the roaches are gone. Placing bait stations to be sure there is return of roaches. --


Roaches (by Sean [CA]) Posted on: Jan 19, 2008 6:37 PM


Sean --


Roaches (by JD [CA]) Posted on: Jan 19, 2008 10:43 PM:

I used BORIC ACID.. It worked well.. Ended up putting it along the bottom of the wall all the way around the house and outside.. BAM they were all gone.

JD --


Roaches (by Josh [CA]) Posted on: Jan 20, 2008 12:07 AM

Yes with complete success. Search roach in Message or Title for LOTs of detailed info. Follow the tips above. Robert (ON), Sean (CA), BillyButton (MD) was of great help as well as many others with my recent roach problems which are solved.

Copperseeds and bugspray you can order products online.

Maxforce Gel, advert is maxforce gel in a spray can with a fine tip to get into tight places, Gentrol is spray that is odorless and colorless. Gentrol makes the roaches sterile so they cannot reproduce. Maxforce Gel is candy to roaches they are drawn to it. You can feed the boogers right from the gel applicator. I've done it. The gel they ingest and die. The other roaches eat the dead and die from eating the bait saturated roach carcass.

Paint everything with a good primer and a good coat/s of paint. Getting rid of the smell of roaches will get them gone faster.

Get rid of the water sources. Put bleach in your drip pan of your refers. Close the toilet lids and or put bleach in the water when the place isn't in use. Make sure sinks bath tub/showers don't drip. Caulk up inside of cabinets, floor boards, around windows.

Seal up around pipes like under sinks. Use foam, white duct tape, wall mud, plastic cement. I removed all the carpeting also and tossed it. Padding too if you use padding.

Be Patient. Gel will take about a month to do its job. It will do it. Do not bomb and gel together or too close together. Bombing will make the gel worthless.



Roaches (by Jason PA [PA]) Posted on: Jan 20, 2008 6:34 AM

I had been using combat get for years with mixed results, I now use what the exterminators use, cypermethrine sold on ebay. one container mixes up to like 50 gallons and is really cheap, I use a hose sprayer and spray cracks and crevices, baseboards under/behind appliances and cabinet with one or 2 gallons. If they were real bad I go back and do it again after a week and then apply combat for long lasting effect. --


Roaches (by Josh [CA]) Posted on: Jan 20, 2008 1:34 PM

I haven't read anything about fire getting rid of roaches. I have however read several times in various places that COLD/freezing will kill roaches and kill the roach eggs.

To put smaller items you want to be roach free in the freezer.

On Monday December 3rd 2007 I will be treating all 10 of your apartments again. NO prep will be needed.

It is not harmful to children or pets. This is the gel and baiting part of the process. Also called by some Pest experts

the "No Chemical pest solution." The following is the text from where I ordered some

of these products. I will be using 3 different products.


Let the Roaches do the work for you. They will pick up the gel and carry it back to the nest inside your walls and destroy the entire colony. No need to use a liquid spray. That would only force them back in the walls and they would find a new path around the treated area.

2.) Gentrol

The gentrol is a birth control for roaches. Keeps them from breeding. The traps will catch any you miss and let you know where to apply bait. The new select bait is the most accepted bait on the market. Roaches are easy to kill if you get bait acceptance.

3.) Maxforce FC Roach Bait Stations are all about fast control and secondary kill. Due to Fipronil and its accelerated Domino Effect™ kill Maxforce FC Roach Bait Stations start to kill roaches in just eight hours. And field tests show 75% population reductions in just two days for roaches! Maxforce FC Ant Bait Stations start to kill ants in just six hours. And tests show 90% population reductions in just four days for ants!

The bait formula is irresistible to roaches, and works that fast.

It's also convenient and easy to use. The small roach and ant bait station bags contain loose-packed single stations and are resealable to keep baits fresh and protected from contamination. Plus, the patented inspectable red station lids now have an additional feature: A debossed lid that's index welded to the base, creating even greater bait station integrity. And, the easy peel-and-stick adhesive makes application fast.

Accelerated Maxforce Domino Effect™ Our new fast control formula still gives you superior long-term control of roaches compared to contact sprays. The new active ingredient, Fipronil, provides a unique mode of action that works through both ingestion and contact, knocking down roaches that eat or simply touch the bait. Either way, one contaminated roach kills many others where they live and breed. The Domino Effect™ still achieves population control, but with faster visible results.


Thank you for working with me to make our home a bug free environment once again.

As always please feel free to contact me when you have concerns about our building.

Communication is the key to all positive relationships.


______________Your Landlord


A couple more tips. What I did was to bomb all 10 units. With only a few here and there until I had the Piggies/2 legged roaches, in units 3 and 4. Out of my property. This building is 2 story 5 units up and 5 units down.

I used Raid fumigators 3 in each 1 bedroom apartment. Starting from the far ends working towards the 2 infested units. Driving the creepies towards the two Infested units.

6 7 8 9 10 Upper

1 2 3 4 5 Lower

I started bombing in 6 + 10 then 7 + 9 then 8.

Next 1 + 5

Then 2

Did 3 + 4.

Asked all tenants when they went back in after the bombing if they found any dead roaches. Only a couple in #8, couple in #1 and #2. Units 3 & 4 good googlie mooglie. Eweeo...

If you have a roach problem in an area that doesn't freeze. Like CA, FL, NV, New Mexico, to name a couple. You need to take aggressive action and stay on it.

Bombs & Sprays are roach repellents. They make the roaches want to steer clear.

Gels =Maxforce/Combat are baits. They draw the roaches to them. To feed on and die from the posion. They have roach stink Luv potion #86 in them. The gel to die for.

Powders. Many powders kill by dehydrating. When walked on. The crystals make cuts on the roach’s feet/legs. The powder dehydrates the roach through these cuts.

If you have occupied units your Tenants must be willing to work with you. As Mike mentioned you cannot have clutter. I had pack rats/hoarders in unit #4. KayRapp 4 foot deep and 5 foot tall around all walls.

I also used boric acid inside of the light switches and wall plugs with the plates off to get the boric acid inside of the walls. Boric acid can be harmful to pets and children. So be careful and thoughtful when treating units with this product as well as all pest treatments.

Ways to apply Gel bait. I tear-up the cardboard box that Maxforce comes in. Into chunks. Apply a bait line on the cardboard. Slip the cardboard maxforce laidened pieces under stoves. Under refers

in cabinets. Take the kitchen drawers out and put some painters tape on the back outside drawer backs that face the wallls. Apply the maxforce to the tape. Next application, remove the old tape and apply new tape and gel.

Open up a cabinet. The frame around the door on the inside top is a good application area.

The under side of cabinets many are recessed. Apply there. Underside of sinks in kitchens and bathrooms.

Up under counter-top edges. Inside of air vents.

Apply every 15 days for 3 sessions. You should be done with the creepies by the end of the 3rd 15 day treatment.

Include roach baiting as part of your turn over process.

I did a compare between combat and maxforce gel bait.. Maxforce was better hands down for me.

Maxforce for me was better in kill force. Quickness to kill and lasted longer.



Roaches (by Dejay [TX]) Posted on: Dec 31, 2008 2:43 PM

They sell Combat Gell at HD or Lowes. It has the same active ingredient and concentration (fripinal?) as MaxForce Gel. But I have found the MaxForce works much better.

You can buy the maxforce at --


Long Beach CA Landlord

Posts: 4
Reply with quote  #10 
Thanks for all the helpful information everybody! I've been having a few ant problems myself once spring and summer come along so this will help me greatly in the future...


Posts: 7
Reply with quote  #11 
the combat gel works amazingly well,my home remains roach free because of it.i can deal with ants,its the roaches and mice i cant stand.

Posts: 563
Reply with quote  #12 
USE BORIC ACID!!  Boric Acid WORKS!!  I can tell you first hand I was at my wits end, then I made some roach treats consisting of Boric Acid (not borax, has to be the real thing) and peanut butter.  Roll little balls and put them in the back of cupboards, behind sinks, etc., they will eat them up like candy and before you know it, you have a roach suicide party on your hands. 

First you'll see the big ones laying dead, then the smaller ones, then once you see the baby roaches (who come out looking for food because the parents are dead), you know you've got them tackled.  Then just sprinkle straight boric acid in hidden places to keep them away.

It dehydrates them to a point of no return.  They cannot survive once they've walked thru the powder or have injested (with peanut butter) it.  Once it's on them in any form, they take it back to their nest as well and feed it to their young and spread it on their eggs, which is really what you want to happen

One of my places went from roach fest to roach free in just 2 weeks.  and no sign of them since.

Can buy boric acid online -- I bought a huge bucket so I'll have plenty for all my rentals for some time to come.  It's a miracle!

Posts: 3
Reply with quote  #13 

I've had termites in a certain area and had the exterminators come out and treat just the area...I wonder if they can do that for roaches too?


Posts: 3,801
Reply with quote  #14 

I wouldn't recommend only treating one specific area of a property for roaches.  Termites live in the wood and aren't that mobile.  They won't simply run to another area of the property like roaches do when the spray comes.  I would treat the whole property for roaches.


Posts: 9
Reply with quote  #15 
Like other people said, boric acid works as well as diatomaceous earth. Both dehydrate their alien shell and somehow ends up killing them.

In my case I wasn't able to secure a perimeter where they were getting into the unit and it didn't really help.

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