Insecticide Applications
Contents
1. aerosol or RTU insecticide to all exterior utilities entering the structure telephone cable TV natural gas water Seal utility entrances Reapply treatments to all exterior areas mentioned as needed during warmer months Inside Investigate crawlspaces and basement areas containing exposed soil If cockroaches or signs are found make crack and crevice liquid aerosol or RTU applications to headers undersides of floor joists around vents and windows and sill plate areas You may also want to apply gel baits or tamper proof bait stations e Make spot treatments with either gel bait or tamper proof bait stations underneath sinks and tubs behind water and gas meters around floor drains underneath water heaters and around humidifiers American Cockroaches Although American cockroaches are less common than the other species they can occasionally become a problem in Nebraska dwellings They are found in all locations where German cockroaches are found and in some areas where oriental cockroaches are found If signs of American cockroaches are found follow the specific treatment recommendations given for German and oriental cockroaches Some habitats are especially attractive to American cockroaches and should be specifically investigated These areas are very warm moist locations such as boiler rooms steam tunnels heated floor drains around hot water supply pipes and heating ducts In general liquid aerosol and RT2. Insecticide Applications Chapter 9 Insecticide Applications Insecticides are an important tool used for cockroach control but to be both effective and safe to sith inhabitants these insecticides must f Wi be applied properly This chapter WW will explain common terminology W types of application equipment and application methods for controlling different cockroach species Definitions Broadcast Coarse spray of liquid insecticide or application of a dust insecticide over a large area should be evenly distributed Band Perimeter Coarse spray of liquid insecticide in a wide band or strip usually several inches centimeters wide Usually around perimeter of a structure Spot Application of an insecticide to a small area usually a gel bait Crack and Crevice Aerosol lInsecticide application of a specialty aerosol using the application tube provided to place insecticides into voids cavities cracks and crevices or other small tight areas Crack and Crevice Placement of the insecticide into cracks crevices or seams Applications must be made so no insecticide residue is found outside the crack crevice or seam Dusting Thin coat of dust formulation not more than one particle thick Bait Station Placement Careful placement of tamper proof bait stations in areas inaccessible to children and pets and near existing cockroach infestations Figure 9 1 Squeeze gel bait into cracks and crevices where co
3. U formulations will degrade quickly under hot moist conditions Dust and bait applications if made properly will be less affected by heat and moisture and will last longer than liquid formulations Before using any insecticide always read and follow all instructions given on the label This information is not only informative and useful but it is the law Any use not consistent with the label is considered a violation of the law and carries with it strict penalties
4. a crack and crevice aerosol or a sprayer fitted with a crack and crevice applicator tool to treat areas where cockroaches are hiding Which insecticide formulation you choose is also very important Many materials commonly used in home construction can adversely react with certain insecticide formulations resulting in ineffective control For example emulsifiable concentrate EC formulations will usually penetrate into porous materials making the insecticide unavailable to control cockroaches Wettable powder WP formulations on the same porous materials will remain active on the surface of the material after the water has dried Another example if you decide to make an application with an EC formulation you risk damaging some plastic materials But a gel bait application which may be even more effective will eliminate the chance of Insecticide Applications Table 5 Formulations and application techniques for effective treatment of cockroach harborages Situation Formulation Application Wooden floors Not recommended Wooden C amp C aerosol liquid WP Crack and crevice aerosol liquid WP or RTU baseboards or RTU Vinyl baseboards RTU C amp C aerosol liquid WP or Crack and crevice aerosol liquid WP or RTU Not recommended Electrical outlets motors compressors Gel bait dust C amp C aerosol Spot bait placements dusting crack and crevice aerosol treatment using plast
5. applicator tube or Cockroach Control Manual straw which is inserted into cracks and crevices during application Some of these crack and crevice aerosols consist of pure highly concentrated insecticides dissolved in an inert carrier gas When the insecticide is injected into a narrow crevice the inert gases quickly evaporate leaving only insecticide on the treated surface These insecticide residues last longer than standard liquid insecticide residues because pure insecticide is more stable than insecticide mixed with water or emulsifiers Crack and crevice aerosols have been formulated with many different active ingredients because these aerosols are so safe and effective when used properly Active ingredients include hydroprene boric acid silica aerogel pyrethrum and many synthetic pyrethroids Ready to Use Sprayers RTU Ready to use home pest control liquid formulations provide another way to apply residual insecticide sprays These products are sold with the applicator nozzle included They generally have a pistol grip hand pump attached to the insecticide container and a siphon tube extending to the bottom of the container These hand pump sprayers can make most of the same liquid spray applications as the compressed air sprayers although they usually do not come with a crack and crevice application tube Aerosol Sprayers and Foggers Surface and space insecticide applications can be made with a
6. ckroaches are hiding owes Application Equipment Bait Stations and Gel Bait Applicators Insecticide baits are available in sealed tamper proof plastic stations or as a gel in a syringe applicator Figure 9 1 The adhesive tape on the bait stations can be stuck to nearly any surface When the syringe applicator is used the gel bait is applied as buttons or small globs spot application in areas inaccessible to children and pets Determine appropriate locations to place tamper proof bait stations and or gel bait based on results from sticky traps used in your N cockroach population WW monitoring efforts Figure 9 2 A hand bellows duster can apply dusts in deep into wall D u s t voids where cockroaches Applicators To deliver dusts in cracks live Dusts often remain active for a long time B Ogg and crevices you might need to buy a hand operated duster Figure 9 2 Look for a local pest control company which sells pest control supplies to the public or on the Internet The most common types are bulb and bellows type dusters Many over the counter dust products are sold in specially designed containers designed to deliver the dust Crack and Crevice Aerosols Some aerosols equipped with a narrow application tube are available through pest control companies which sell pest control supplies the Internet and sometimes locally at discount or hardware stores Figure 9 3 These aerosols have a narrow
7. d cockroach If infestations or signs are found treat the interior of furniture using a crack and crevice liquid aerosol or RTU insecticide or apply insecticidal Insecticide Applications baits Other furniture such as chairs and couches can also be infested If found apply a crack and crevice liquid aerosol or RTU treatment to the underside of infested furniture Hollow locations such as curtain and drapery rods table legs and pole lights are important harborages for brownbanded cockroaches as well Treat these areas similarly as for crack and crevice locations or carefully apply small amounts of dust Baits are also especially effective in these locations Oriental Cockroaches Oriental cockroaches require cool temperatures high moisture and readily available drinking water They can occur in many of the locations mentioned earlier for German cockroaches but concentrate in basements bathrooms laundry rooms and under the kitchen sink Follow the same treatment recommendations as for German cockroaches plus add those listed here Outdoors e Make a band perimeter treatment with a liquid aerosol or RTU insecticide to all external entry areas especially thresholds to the entire perimeter of basement foundation and to other slab construction areas garage porches sidewalks and stairways Reduce vegetation near the foundation of the house Make a crack and crevice and or spot treatment with a liquid
8. er tops touch walls and sinks Examine baseboards ceiling trim boards and wall paneling Apply crack and crevice treatments of liquid aerosol or RTU insecticides or gel bait if signs of cockroaches are found Examine wall decorations like clocks and pictures for the presence or evidence of cockroaches Use freezing treatments gel baits or crack and crevice aerosols Small appliances such as toasters and blenders should be checked for signs of cockroaches Gel baits crack and crevice aerosols or freezing are best treatments Avoid insecticide contact with food contact surfaces Examine large appliances for signs of cockroaches Pay particular attention to areas under magnetic seals on refrigerator and freezer doors If they are found carefully apply crack and crevice liquid aerosol or RTU insecticides and or gel baits to the infested areas Never apply insecticides so food dishes or utensils can become contaminated e Wall ceiling or floor voids in kitchens and bathrooms are also favored habitats Dusts crack and crevice liquid aerosol RTU or gel bait applications can be used in these locations The most likely entrance into wall void areas is through openings around pipes under the sinks Treat and seal these openings Hollow locations such as table and chair legs are important harborages because they are easily overlooked Treat these areas similarly as for crack and crevice locations or carefully apply small amount
9. erosol sprayers and aerosol foggers These aerosol products don t need any other application equipment We do not recommend the use of total release foggers for cockroach control Compressed Air Sprayers The basic mechanical unit used by pest control technicians to apply residual sprays for insect control is the compressed air sprayer One example is the B amp G stainless steel sprayer which has an adjustable nozzle that is capable of delivering different spray straw tip delivers insecticide in cracks and crevices where cockroaches live patterns This sprayer can be adapted for crack and crevice treatment Compressed air sprayers are easy to use efficient and readily available _ Application Methods B Ogg How insecticides are applied is extremely important Many people apply insecticides ineffectively because they either choose the wrong product wrong formulation or wrong application method For example many people use over the counter ant and roach aerosols and expect them to provide long term control This products are contact insecticides with little residual control Contact insecticides kill on contact which means you have to spray the insecticide on the insect for it to work Another example is when sprays are applied to baseboards rather than to cracks and crevices where cockroaches live Because most cockroaches don t live behind baseboards this application will not be very effective Instead use
10. ic applicator Painted drywall Above false ceilings Dust tamper proof bait Dusting bait station placements stations Around or on pipes C amp C aerosol or RTU gel bait dust Crack and crevice aerosol or RTU spot bait placements dusting Wall voids Dust C amp C aerosol Dusting crack and crevice aerosol application Insulation fiberglass C amp C aerosol liquid EC or RTU gel bait or tamper proof bait stations Appliances Dust C amp C aerosol gel bait or tamper proof bait stations Cabinets C amp C aerosol liquid EC or RTU gel bait or tamper proof bait stations Hot locations C amp C aerosol liquid EC or RTU gel bait or tamper proof bait stations Food storage locations Crack and crevice aerosol liquid EC or RTU spot bait placements and or bait station placements Dusting under and around crack amp crevice aerosol or spot bait placements and or bait station placements Crack and crevice aerosol liquid EC or RTU spot bait placements and or bait station placements Crack and crevice aerosol liquid EC or RTU spot bait placements and or bait station placements Wet locations Gel bait or tamper proof Spot bait placements and or bait station bait stations placements C amp C aerosol liquid WP or RTU gel bait and or tamper proof bait stations Greasy locations Crack and crevice aerosol liquid WP or RTU spot bait placements and or bait station
11. placements Aerosol liquid EC or RTU Band perimeter and or broadcast EC formulations can react with chemicals in wood stains carpet dyes and vinyl resulting in reduced insecticide activity and damage to the surface Crack and crevice Because these crack and crevice products contain no water or oil emulsifiers they are ideal for treating electric motors and switch boxes The motor housings of refrigerators and freezers are an important and overlooked place where German cockroaches find an ideal habitat 4 Before application remove all food and utensils and protect them from exposure to the insecticide Cockroach Control Manual damage Table 5 gives the most effective insecticide formulations and application methods at locations where cockroaches live Species Specific Management Because cockroach species have preferred habitats you will need to target specific areas within your home for most effective control The following will help guide your control efforts German Cockroaches e Concentrate in kitchen bathrooms and any other room where food and or water is readily available Look for possible cockroach habitats near electrical heat sources like refrigerator compressors and fan motors Apply crack and crevice treatments and or gel baits to all cracks crevices and seams where cockroach activity is observed Preferred habitats are in cracks between under and behind cabinets and where count
12. s of dust Baits are also especially effective in these locations Brownbanded Cockroaches Because brownbanded cockroaches have a lower water requirement than the other cockroach species they can be found in all rooms of the house apartment or building In addition to all the locations mentioned for German cockroaches additional locations may need to be treated Check trim and framing around windows doors and closets If a treatment is required use a crack and crevice liquid or aerosol application or gel bait Examine pictures tapestries and other wall decorations carefully These locations are especially common for brownbanded infestations If infestations are found use freezing treatments gel or tamper proof baits or crack and crevice aerosols Check television stereo radio clocks and other electric motors with warm microclimate areas Use special caution when attempting treatment because of the possibility of electrical shock Use freezing treatments where possible and dust applied very lightly for others Some of the crack and crevice aerosols may be labeled for use in electrical appliances as well Textured ceilings are a common place for the female brownbanded cockroaches to attach egg cases Physically remove egg cases paint the ceiling to discourage cockroaches from returning and apply a gel bait as a spot treatment if necessary Furniture with drawers in the bedroom and living room is attractive to the brownbande
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