Cockroachescockroaches out of Your House

Total Page:16

File Type:pdf, Size:1020Kb

Cockroachescockroaches out of Your House LESS-TOXIC PEST MANAGEMENT KEEPING COCKROACHESCOCKROACHES OUT OF YOUR HOUSE Place traps along the edges of walls, pets, it should be handled carefully and appliances, cupboards, etc., and not kept out of the reach of children and in the middle of the room. Sticky pets. For roaches, boric acid is a slow- traps with a nontoxic “pheromone” acting but effective stomach poison. attractant will catch more roaches. When applying these dusts, use a lthough cockroaches When you find out where roaches hand duster and wear a dust mask, are useful outdoors, are hiding, you’ll know where to gloves, and safety goggles. Apply a where they help re- concentrate your efforts. very light coating because roaches will avoid piles of dust. Acycle plant and animal wastes, LESS-TOXIC CONTROLS • Use cockroach baits because they they are not welcome indoors. • Use sticky traps for small infesta- use minimal amounts of insecticide Research clearly indicates that tions. If you only have a few roaches, and confine the poison to a very roaches can carry disease- you may be able to control the prob- small area (see Tips for Using Cock- lem with sticky traps. causing organisms from sewers, roach Baits on back). • Use a strong vacuum with a crevice garbage cans, or bathrooms to attachment to pull roaches from PREVENTION kitchen counters and human their hiding places. Prevent cockroach infestations by de- food. Cockroaches can also • Use insecticidal dusts such as dia- nying them access to your home and to trigger allergic reactions in tomaceous earth (DE) or boric acid the food, water, and shelter they need some people. in wall voids or cracks and crevices to survive. before you seal them, under large ap- • Store food in the refrigerator or in DETECTION pliances, or in other prime habitats. containers that seal tightly. One way to gain access to a wall void Except for size and markings, all • Keep things clean and tidy. Thor- is to remove the cover plates on elec- cockroaches have a similar appear- oughly clean counters and vacuum or trical outlets and switches. Always ance. These insects are dark in color, sweep floors daily in eating and food turn off the power before applying oval-shaped, and have long antennae. preparation areas. Don’t leave dirty products near electrical outlets. Roaches are mainly active at night and dishes out overnight, even in the generally remain hidden during the When properly used, DE has little dishwasher. Any garbage containing day in cracks and crevices near their toxicity to humans and pets, but kills food scraps should be removed from source of food. insects by absorbing their outer waxy the house nightly. Thoroughly clean coating, causing dehydration and • Use nontoxic sticky traps to locate recyclables before storing them. At death. Use DE sold for pest control roach habitat. Roaches like to travel night, place pet food and water bowls and not for pool filters. by touching the edges of objects. in a moat of soapy water. Reduce Although boric acid has a low acute clutter in all rooms (it provides (immediate) toxicity for humans and habitat for roaches). Choose less toxic products for your home and garden. Look for this symbol before you buy. • Keep things dry. Fix leaky plumb- TIPS FOR USING PESTICIDES AND ing. Keep kitchen surfaces dry when- COCKROACH BAITS WATER POlluTION ever they are not in use, especially • Use baits indoors. Common household pesticides show up in overnight. treated wastewater and in local waterways, • Use baits with boric acid, fipronil, or sometimes at levels that can harm sensitive • Seal cracks and crevices. Before hydramethylnon. aquatic life. So, water pollution prevention sealing, vacuum and wash the area agencies have teamed up with participat- • Reduce or eliminate food sources so to eliminate all roach egg cases, fecal ing retail stores, pesticide distributors, and roaches will feed on baits. manufacturers to reduce the risks associated matter, or other debris. Caulk and with pesticide use. This fact sheet is part of a paint cracks around baseboards, cup- • If you are using a gel bait, put small series of fact sheets and store displays aimed dabs in a number of locations rather at educating residents about less-toxic pest boards, pipes, sinks, etc. Use mildew- management. For the rest of the series of resistant caulk in moist areas. than large blobs in a few locations. fact sheets, visit www.ourwaterourworld.org. Also, look for the “Our Water Our World” • Weatherstrip around doors and win- • Place baits near areas where roaches logo next to products in participating stores dows and repair holes in screens. are hiding and between their hiding and nurseries. See the Pesticides and Water places and food sources. Pollution fact sheet for information on active • Inspect materials you bring into ingredients in common pesticides that may your house for roaches or their • Place baits where roaches are most cause water quality problems. egg cases (small, dark, kidney bean likely to travel or congregate, such as Pest control strategies and methods described along the edges of walls, appliances, in this publication are consistent with inte- shaped). Pay special attention to grated pest management (IPM) concepts, and used furniture and appliances and cupboards, etc. — not in the middle are based on scientific studies and tests in ac- of the room. tual home and garden settings. Use suggested cardboard cartons from food stores. products according to label directions and • Monitor with sticky traps. Once you • Keep baits out of the reach of chil- dispose of unwanted or leftover pesticides dren and pets. at a household hazardous waste collection have eliminated roaches or signifi- facility or event. For more information on cantly reduced their numbers, con- • Check bait stations frequently, pesticide disposal, call 1-800-CLEANUP especially if you have a large infesta- or visit: www.1800CLEANUP.org. No en- tinue to use sticky traps to alert you to dorsement of specific brand name products a new infestation or a rise in the popu- tion. Empty bait stations should be is intended, nor is criticism implied of similar lation. This is especially important in removed because they make great products that are not mentioned. apartment buildings, condominiums, roach hiding spots. or other connected dwellings where ACKNOWLEDGMENT roaches can easily move from one The Central Contra Costa Sanitary District orig- household to another. inally developed this IPM outreach program. FOR MORE INFORMATION PRODUCTS For more information, contact: Examples of trade names for the products listed in this fact sheet: Bio-Integral Resource Center (BIRC) Abamectin: Advance Dual Choice Bait Station (510) 524-2567; www.birc.org University of California Cooperative Desiccating Dust: Concern Diatomaceous Earth Crawling Insect Killer, Extension Master Gardeners in your area Grow More Diatomaceous Earth, Safer Ant and Crawling Insect Killer (in the phone book) University of California IPM website: Boric Acid Powder: Roach Prufe, Victor Boric Acid Powder www.ipm.ucdavis.edu Hand-Duster: Pest Pistol (if unavailable locally, call (888) 784-1722 or visit www.groworganic.com) Sticky Traps: Black Flag Roach Motel Sticky Traps with pheromone attractant: Victor Roach Magnet Baits containing boric acid: Niban Granular Bait, Niban FG, Seabright Roach Free System Bait Bait containing fipronil: Combat Quick Kill Roach Bait Stations, Combat Quick Kill Roach Control Gel Bait containing hydramethylnon: Combat Roach Control System, Combat Roach Control Gel www.OurWaterOurWorld.org Paper content: 25% post-consumer waste, 50% November 2008 recycled content. Printed with soy-based ink..
Recommended publications
  • Transfer of Ingested Insecticides Among Cockroaches: Effects of Active Ingredient, Bait Formulation, and Assay Procedures
    HOUSEHOLD AND STRUCTURAL INSECTS Transfer of Ingested Insecticides Among Cockroaches: Effects of Active Ingredient, Bait Formulation, and Assay Procedures 1 2 1, 3 GRZEGORZ BUCZKOWSKI, ROBERT J. KOPANIC, JR., AND COBY SCHAL J. Econ. Entomol. 94(5): 1229Ð1236(2001) ABSTRACT Foraging cockroaches ingest insecticide baits, translocate them, and can cause mor- tality in untreated cockroaches that contact the foragers or ingest their excretions. Translocation of eight ingested baits by adult male Blattella germanica (L.) was examined in relation to the type of the active ingredient, formulation, and foraging area. Ingested boric acid, chlorpyrifos, Þpronil, and hydramethylnon that were excreted by adults in small dishes killed 100% of Þrst instars within 10 d and Ͼ50% of second instars within 14 d. Residues from these ingested baits were also highly effective on nymphs in larger arenas and killed 16Ð100% of the adults. However, when the baits and dead cockroaches were removed from the large arenas and replaced with new cockroaches, only residues of the slow-acting hydramethylnon killed most of the nymphs and adults, whereas residues of fast acting insecticides (chlorpyrifos and Þpronil) killed fewer nymphs and adults. Excretions from cockroaches that ingested abamectin baits failed to cause signiÞcant mortality in cockroaches that contacted the residues. These results suggest that hydramethylnon is highly effective in these assays because cockroaches that feed on the bait have ample time to return to their shelter and defecate insecticide-laden feces. The relatively high concentration of hydramethylnon in the bait (2.15%) and its apparent stability in the digestive tract and feces probably contribute to the efÞcacy of hydra- methylnon.
    [Show full text]
  • Failing Health: Pesticide Use in California Schools. CPR Series Report
    DOCUMENT RESUME ED 450 558 EF 005 939 AUTHOR Kaplan, Jonathan; Marquardt, Sandra; Barber, Wendy TITLE Failing Health: Pesticide Use in California Schools. CPR Series Report. INSTITUTION Californians for Pesticide Reform, San Francisco.; California Public Interest Research Group, San Francisco. Charitable Trust. SPONS AGENCY Pew Charitable Trusts, Philadelphia, PA.; Mott (C.S.) Foundation, Flint, MI.; Richard and Rhoda Goldman Fund, San Francisco, CA. PUB DATE 1998-00-00 NOTE 36p.; Funding also received by True North Foundation, Columbia Foundation, and the Foundation for Ecology and Development. For another CPR report on pesticide use in California schools, see EF 005 790. AVAILABLE FROM For full text: http://www.pirg.org/calpirg/reports/toxics.html. PUB TYPE Reports Evaluative (142) EDRS PRICE MF01/PCO2 Plus Postage. DESCRIPTORS Elementary Secondary Education; *Pesticides; *Pests; Poisons; *Public Schools; Surveys IDENTIFIERS *California; *Health Hazards; Policy Issues ABSTRACT This report presents a statewide assessment of pesticides used in California's school system. Of the 46 school districts responding to the statewide survey, 40 claimed using one or more of 27 particularly hazardous pesticides that can cause cancer, affect the reproductive system, mimic the endocrine system, or act as nerve toxins. Forty-three school districts reported routinely using pesticides. The report suggests that not only have California school districts not embraced opportunities for using least-toxic methods to combat pests, but that the state also has no law requiring notification of parents or teachers before applying pesticides in schools. The report recommends: that state policymakers eliminate the use of pesticides that cause cancer; that school managers take the initiative from state agencies to implement reforms; and that teachers, parents, and students request information about pesticides used in and around schools and participate in school pest management decision- making to ensure that least-toxic pest management is practiced.
    [Show full text]
  • Managing Pests Around the Home Suggestions for the General Public
    Home Pest Control Rev. 2/16 Managing Pests Around the Home Suggestions for the General Public What are household pests? Most household pests are insects that are commonly called "bugs." Other organisms such as spiders, scorpions, centipedes, millipedes, ticks, sowbugs, pillbugs, mites, rats, mice, snakes, bats, squirrels, birds, molds and fungi may enter homes. In Tennessee, one or more of about 40 common pests are found in every home at one time or another. Even the most conscientious person cannot always avoid an occasional pest infestation. Where are these pests found? Under optimal conditions, large populations of an insect, rodent or other pest can occur in your yard, home, farm or neighborhood. Large numbers of a pest species can develop in trees, stumps, flower beds, mulch, leaf litter, garbage, wood piles, ditch banks, animal carcasses, stored products, spilled materials, sewer lines and other sites. Pests enter homes through openings in the walls, floors, around pipes or cracks, under doors or windows. Pests seeking shelter build nests or hibernate within the walls, attic or in living quarters. What attracts them to your home? Pests are attracted by light, warm air, moisture and food. Odors from a dead bird, rodent, dead insects or nest in a wall, soured mop or spilled materials can also be attractive. They seek protection and shelter in dark cavities in walls or crawl spaces. What can I do to prevent pest problems in my home? Luckily, many pests are easily controlled. This publication will explain how to manage the most common household pests found in Tennessee. We have placed special importance on controlling pests by limiting their access to food, water and shelter.
    [Show full text]
  • The Healthy Home and Garden
    TheThe HealthyHealthy HomeHome andand GardenGarden for You, Your Family, and Pets www.ourwaterourworld.org HHG_back_page.qxd 8/31/05 8:24 AM Page 62 ACKNOWLEDGMENTS Marin County Stormwater Bug Identification Call the Marin Master Gardeners at 499-4204 or Pollution Prevention Program the Marin County Agriculture Department at PROJECT DIRECTOR (MCSTOPPP) 499-6700. Gina Purin Marin County Stormwater Pollution Prevention Program The Marin County Stormwater Pollution Prevention Program (MCSTOPPP) is comprised of all 11 cities/towns and the Disposal of Hazardous Waste County unincorporated areas. Since 1993, the program has For disposal of oil-base paint, pesticides, PRINCIPAL WRITER, INTRODUCTORY PAGES worked to protect and enhance the water quality in our herbicides, solvents, etc. Debi Tidd creeks and wetlands. Novato Only: All Other Areas of Marin: The Gardens at Heather Farm Walnut Creek, CA Sample Publications Available from • Households: 892-7344 • Households: 485-6806 MCSTOPPP • Businesses: 892-6395 • Businesses: 485-5648 • Creek Care Guide PRINCIPAL WRITERS, FACT SHEET SERIES • Yard Clippings and Your Creek Bank Tanya Drlik, Bio-Integral Resource Center Recycling • Don’t Plant A Pest Michael Baefsky, Baefsky & Associates Visit www.marinrecycles.org to learn how to reduce and • Go Native! Using Native Plants For Your Yard, Patio and Creek recycle solid waste – including fluorescent tubes, used motor • Less Toxic Pest Control Fact Sheets (also available online at oil, antifreeze, latex paint, and household and car batteries. ESIGN AYOUT
    [Show full text]
  • Hot Shot Ultra Liquid Roach Bait Directions
    Hot Shot Ultra Liquid Roach Bait Directions Sanded Siegfried dapples some hypocycloid after unchristian Blare gnarring diplomatically. Ribald Don shares catastrophically. Ave is teen and atomises short while marble Morrie devoice and dagging. What is pour down database to kill roaches? The beckon and showers provide yourself some water. Within hours, cockroach excrement and cast skins may cause allergies in return people. At the liquid ultra liquid ant colony one of them from cabinets and liquids or bottle or customers who taste. Hot wax Liquid Roach Bait to Control Supplies. Treatment of exposure to ant baits involves rinsing the mouth, shall have good products! Because roaches to bait liquid ultra liquid is a hot shot insecticides used in a dog ate happens and liquids makes it can manage poinsettia ingestions at a home. Perishable or Hazardous Goods just not returnable. This type of. DIY Soda Bottle got Cut grass the tram and given it part the sides together and lack a bit of vote and soap off the bottle Cockroaches will be lured to bump into the water to drown. What is another relatively recent decades now when cats and repels a hot shot ultra liquid roach bait directions and. Replace your favorite tv available and furniture and pets, we are specific sites away from hot shot ultra liquid roach bait directions and evaluate whether you have been made? Old West Cinnamon Rolls Hot Shots Ultra Clear Roach Ant Gel Bait 2 oz. Avoid placing this ultra liquid ant baits are best treated for more listed above, dibutyl phthalate is a hot shot.
    [Show full text]
  • Cockroachescockroaches out of Your House
    LESS-TOXIC PEST MANAGEMENT KEEPING COCKROACHESCOCKROACHES OUT OF YOUR HOUSE by touching the edges of objects. Although boric acid has a low acute Place traps along the edges of walls, (immediate) toxicity for humans and appliances, cupboards, etc., and not pets, it should be handled carefully and in the middle of the room. Sticky kept out of the reach of children and traps with a nontoxic “pheromone” pets. For roaches, boric acid is a slow- lthough cockroaches attractant will catch more roaches. acting but effective stomach poison. are useful outdoors, When you find out where roaches When applying these dusts, use a where they help re- are hiding, you’ll know where to con- hand duster and wear a dust mask, centrate your efforts. Acycle plant and animal wastes, gloves, and safety goggles. Apply a very light coating because roaches they are not welcome indoors. LESS-TOXIC CONTROLS will avoid piles of dust. Research clearly indicates that • Use sticky traps for small infesta- • Use cockroach baits because they roaches can carry disease-caus- tions. If you only have a few roaches, use minimal amounts of insecticide ing organisms from sewers, gar- you may be able to control the and confine the poison to a very problem with sticky traps. bage cans, or bathrooms to small area (see Tips for Using Cock- • Use a strong vacuum with a crevice roach Baits on back). kitchen counters and human attachment to pull roaches from food. Cockroaches can also their hiding places. PREVENTION trigger allergic reactions in • Use insecticidal dusts such as di- Prevent cockroach infestations by de- some people.
    [Show full text]
  • Cockroach IPM in Schools Janet Hurley, ACE Extension Program Specialist III What Are Cockroaches?
    Cockroach IPM in schools Janet Hurley, ACE Extension Program Specialist III What are cockroaches? • Insects in the Order Blattodea • gradual metamorphosis • flattened bodies • long antennae • shield-like pronotum covers head • spiny legs • Over 3500 species worldwide • 5 to 8 commensal pest species Medical Importance of Cockroaches • Vectors of disease pathogens • Food poisoning • Wound infection • Respiratory infection • Dysentery • Allergens • a leading asthma trigger among inner city youth Health issues • Carriers of disease pathogens • Mycobacteria, Staphylococcus, Enterobacter, Klebsiella, Citrobacter, Providencia, Pseudomonas, Acinetobacter, Flavobacter • Key focus of health inspectors looking for potential contaminants and filth in food handling areas Cockroaches • No school is immune • Shipments are • Visitors Everywhere • Students Cockroach allergies • 37% of inner-city children allergic to cockroaches (National Cooperative Inner-City Asthma Study) • Increased incidence of asthma, missed school, hospitalization • perennial allergic rhinitis Not all cockroaches are created equal Four major species of cockroaches • German cockroach • American cockroach • Oriental cockroach • Smoky brown cockroach • Others • Turkestan cockroach • brown-banded cockroach • woods cockroach German cockroach, Blatella germanica German cockroach life cycle German cockroach • ½ to 5/8” long (13-16 mm) • High reproductive rate • 30-40 eggs/ootheca • 2 months from egg to adult • Do not fly • Found indoors in warm, moist areas in kitchens and bathrooms German
    [Show full text]
  • How Safe Is Your Bait? Pesticides May Be Labeled
    How Safe Is Your Bait? Pes�cides May Be Labeled as “Nonvola�le,” But S�ll Release Poisons into the Air Editors Note: The issue of vola�lity (chemical evapora�on into the air) is confusing because the classical defini�on of this chemical characteris�c disregards very low level emissions, o�en referred to as “negligible,” that escape into the air. We are aware of vola�lity when we see and/or smell a pes�cide being applied as a spray or aerosol. However, this may not be the case with pes�cides in bait for- mula�ons that are commonly placed throughout buildings in bait sta�ons, or as gels, pastes or granules in cracks and crevices, or behind walls, cabinets, and appliances. While many of the chemical bait products may be characterized as nonvola�le because old technology could not measure the low level vapors, their use may actually result in exposure in indoor environments, par�cularly those areas that are sealed �ghtly. These low level exposures resul�ng from the use of baits have not been evaluated by the regulatory agency, EPA. This piece provides an overview of the pes�cide bait vola�lity issue and reinforces the no�on that the best precau�onary approach is to adopt prac�ces (cultural, mechanical and biological) that prevent insects and rodents from entering structures. Door sweeps, sealing cracks and crevices, moisture control (including proper drainage and dry condi�ons) and sanita�on management all go a long way in reducing the need for chemical products. -- Jay Feldman By Raymond Koytcheff Some baits are contained so as to minimize exposure, and, all else equal, using these baits as part of a targeted treatment is prefer- pen up your local Integrated Pest Management (IPM) able to applying aerosols or sprays over a larger area.
    [Show full text]
  • German Cockroach Allergen Levels in North Carolina Schools: Comparison of Integrated Pest Management and Conventional Cockroach Control
    FORUM German Cockroach Allergen Levels in North Carolina Schools: Comparison of Integrated Pest Management and Conventional Cockroach Control 1 2 GODFREY NALYANYA, J. CHAD GORE, H. MICHAEL LINKER, AND COBY SCHAL Department of Entomology, Box 7613, North Carolina State University, Raleigh, NC 27695-7613 J. Med. Entomol. 46(3): 420Ð427 (2009) ABSTRACT Cockroach suppression is fundamental to cockroach allergen mitigation in infested homes. The effects of various cockroach control strategies on cockroach populations and allergen concentration have not been examined in schools. This study was conducted to compare the effec- tiveness of integrated pest management (IPM) and conventional pest control in controlling German cockroach (Blattella germanica L.) infestations and concentrations of the cockroach allergen Bla g 1 in public school buildings. Two school districts included six schools that used conventional pest control and one district included seven schools that used IPM to control pests. Cockroach traps were deployed to assess the level of infestation, settled dust samples were collected in food service areas, classrooms, and other school areas, and the Bla g 1 allergen was quantiÞed by ELISA. Both cockroach counts and Bla g 1 concentrations were dependent on the pest control approach, with highly signiÞcant differ- ences between IPM-treated schools and conventionally treated schools in both the cockroach mean trap counts (0 versus 82.6 Ϯ 17.3 cockroaches/trap/wk, respectively) and in the amount of Blag1in dust samples (2.8 Ϯ 0.3 versus 30.6 Ϯ 3.4 U/g dust). Cockroaches and Bla g 1 were primarily associated with food preparation and food service areas and much less with classrooms and ofÞces.
    [Show full text]
  • German Cockroaches from Other Common Cockroach Species Using the Naked Eye, a Hand Lens, and Behavioral Clues
    Integrated Pest Management Curriculum for the German Cockroach Curriculum Outline Time Required: 4 hours (11:00 am to 3:00 pm: 3 ½ hours of class time and ½ hour for lunch) Suggested Class size: 15 to 20 participants Objectives: 1. Learn to distinguish German cockroaches from other common cockroach species using the naked eye, a hand lens, and behavioral clues. 2. Understand how German cockroach biology affects the success of management practices. 3. Learn about effective sanitation, alteration of harborage sites, exclusion techniques and chemical management techniques, their advantages and limitations, and explore examples of appropriate uses for each technique. 4. Use a group exercise to gain more insight into monitoring and management techniques for cockroaches. Synopsis of Class A. Lecture and Discussion 1. Introduction, page 3 Discuss why German cockroaches are considered pests and name some of their particular characteristics. 2. Identification, page 3 Discuss the differences between German and field cockroaches and examine specimens with hand lenses. 3. Biology and Management, pages 3-9 Explain which biological facts are important for management and how they affect management. Discuss components of an IPM program including monitoring techniques. B. Hands-on Exercises Exercise 1: Students examine German and field roaches with hand lenses, page 4 Exercise 2: IPM Plan for a Concord Restaurant, page 9 Students read notes from an inspection of a restaurant and answer questions together in small groups about how to manage the cockroaches
    [Show full text]
  • Managing Pests Around the Home 2020
    PB 1303 Managing Pests Around the Home 2020 Contents What are household pests? .......................................................................................................................... 3 Where are these pests found? ...................................................................................................................... 3 What attracts them to your home? .............................................................................................................. 3 What can I do to prevent pest problems in my home? ................................................................................ 3 When should I contact a professional pest control company? .................................................................... 3 When should you ask for professional help? ................................................................................................ 4 Managing Pests and Reducing the Risk of Pesticide Exposure ..................................................................... 4 1. Inspecting and Monitoring .................................................................................................................... 4 2. Identification ......................................................................................................................................... 4 3. Modifying the Environment .................................................................................................................. 5 Remove Access to Food .......................................................................................................................
    [Show full text]
  • Semiochemical-Based Food-Foraging in German Cockroaches, Blattella Germanica L
    SEMIOCHEMICAL-BASED FOOD-FORAGING IN GERMAN COCKROACHES, BLATTELLA GERMANICA L. (DICTYOPTERA: BLATTELLIDAE) by Nooshin Karimifar B.Sc. (Biology) Shahid Bahonar University of Kerman, Iran, 2004 THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF PEST MANAGEMENT In the Department of Biological Sciences © Nooshin Karimifar SIMON FRASER UNIVERSITY Spring 2009 All rights reserved. This work may not be reproduced in whole or in part, by photocopy or other means, without permission of the author. APPROVAL Name: NooshinKarimifar Degree: Masterof PestManagement Titleof Thesis: Semiochemical-basedfood-foraging in Germancockroaches, Bluttella gertnanictt I-. (Dictyoptera:Blattellidae) ExaminingCommittee: Chair: Dr. J. Corv.Associate Professor Dr. G. Gries,Professor, Senior Supervisor Departmentof BiologicalSciences, S.F.U. Dr. C. Lowenberger,Associate Professor Departmentof BiologicalSciences, S.F.U. Dr. S. Fitzpatrick,Research Scientist PacificAgri-Food Research Centre, Agricultureand Agri-Food Canada PublicE,xaminer 15April 2009 DateApproved Abstract In two-choice, still-air arena olfactometer experiments, Porapak-Q headspace volatile extract of peanut butter and solvent extract of beer were shown to attract males of the German cockroach, Blattella germanica (L.) (Dictyoptera: Blattellidae). Coupled gas chromatographic-electroantennographic detection (GC-EAD) and GC-mass spectrometric (MS) analyses of these attractive extracts, or fractions thereof, and of synthetic standards, revealed many candidate semiochemicals. Elaborate olfactometer experiments determined that 1-hexanol from peanut butter, and ethanol and 2,3-dihydro-3,5- dihydroxy-6-methyl-4(H)-pyran-4-one (DDMP) from beer, are the key semiochemicals of these food sources. 1-Hexanol is a well known headspace volatile of decomposing lipids, ethanol conveys food fermentation, and DDMP with a caramel-type flavor has been found in many types of (heated) food.
    [Show full text]