Rapid Elimination of German Cockroach, Blatella germanica, by Fipronil and Imidacloprid Gel Baits
AbstractBackground: Baits have become popular and effective formulations against urban insect pests. Compared with residual sprays toxic gel baits are used more and more frequently to control urban cockroach populations. The aim of this study was to investigate the usage of two commercially available fipronil and imidacloprid gel bait formulations against Blattella germanica field infested in Iran.Methods: The study was carried out in an urban area at Tehran from March 2004 to September 2005. The 0.05% fipronil and 2.15% imidacloprid gel baits were placed continuously in 3 residential German cockroach infested units. Pre- and post-treatment cockroach density was assessed by visual count method.Results: Pre- and post-treatment visual count of cockroaches in treatment and control areas, and percentage reduction in cockroach density in treatment areas in comparison to control areas was showed that density reduction was increased with the 0.05% fipronil and 2.15% imidacloprid gel baits in treated areas from 1st to 9th week in comparison to control area. After 60 days, German cockroaches eliminated completely from these areas.Conclusion: These results show that fipronil and imidacloprid gel baits are highly effective in field German cockroach infested after insecticide spraying control failure German cockroach infested fields where spraying of pyrethroid insecticides failed to control the situation and confirm previous reports stating that avermectin and hydramethylnon are more effective than conventional insecticides in baits against cockroaches. Therefore, fipronil and imidacloprid gel baits are appropriate candidates for controlling German cockroach infested dwellings in Iran where control with other insectices failed because of resistance.
Appel AG (1990) Laboratory and field per- formance of consumer bait products for German cockroach (Dictyoptera: Blat- tellidae) control. J Econ Entomol. 83:153-59.
Appel AG (1992) Performance of gel and paste bait products for German cock- roach (Dictyoptera: Blattellidae) control: laboratory and field studies. J Econ En- tomol. 85: 1176-1183.
Appel AG, Benson EP (1995) Performance of abamectin bait formulations against German cockroaches (Dictyoptera: Blat- tellidae). J Econ Entomol. 88: 924-931.
Appel AG, Tanley MJ (2000) Laboratory and field performance of an imidacloprid gel bait against German cockroaches (Dictyoptera: Blattellidae). J Econ En- tomol. 93:112-118.
Atkinson TH, Wadleigh RW, Koehler PG, Patterson RS (1991) Pyrethroid resis- tance and synergism in a field strain of the German cockroach (Dictyoptera: Blat- tellidae). J Econ Entomol. 84:1247-1250.
Benson EP, Zungoli PA (1997) Cock- roaches. In: Mallis A, editor. Handbook of pest control, 8th ed. Mallis Handbook and Technical Training Company. Cleve- land, USA. pp. 123-202.
Cochran DG (1985) Mortality and reproduc-tive 9effects of avermectin B1 fed to German cockroaches. Entomologia Ex- perimentalis et Applicata. 37: 83-88.
Cochran DG (1989) Monitoring for insecti- cide resistance in field-collected strains of the German cockroach (Dictyoptera: Blattellidae). J Econ Entomol. 82: 336-341.
Cochran DG (1997) Misuse of the tarsal- contact method for detecting insecticide resistance in the German cockroach (Dic- tyoptera: Blattellidae). J Econ Entomol.90: 1441-1444.
Cochran DG (1999) Cockroaches: their biol- ogy, distribution and control. Document WHO/CDS/CPC/WHOPES/99.3. World Health Organization, Geneva.
Cox C (2001) Insecticide Factsheet/ Imida- cloprid, Northwest Coalition for Alternatives to Pesticides (NCAP). J Pesticide Reform. 21(1): 15-21.
Czajka E, Pancer K, Kochman M, Gliniewicz A, Sawicka B, Rabczenko D, Stypuł- kowska Misiurewicz H (2003) Char- acteristics of bacteria isolated from body surface of German cockroaches caught in hospitals. Przegl Epidemiol. 57: 655-662. Dong K, Valles SM, Scharf ME, Zeichner B, Bennett GW (1998) The knockdown re- sistance (kdr) mutation in pyrethroid-re- sistant German cockroaches. Pestic Bio-chem Physiol. 60: 195-204.
Eggleston PA, Luisa KA (2001) Ecology and elimination of cockroaches and allergens in the home. J Allergy Clin Immunol. 107: 422-429.
Harbison B, Kramer R, Dorsch J (2003)Stayin alive. Pest Control Technology.83: 24-29.
Kaakeh W, Reid BL, Bennett GW (1997) Toxicity of fipronil to German and Ameri- can cockroaches. Entomol Exp Appl. 84:229-237.
Kaakeh W, Reid BL, Bohnert TJ, Bennett GW (1997b) Toxicity of imidacloprid in the German cockroach (Dictyoptera: Blattellidae) and the synergism between imidacloprid and Metarhizium anisopliae (Imperfect fungi: Hyphomycetes). J Econ Entomol. 90: 473-482.
Katial RK (2003) Cockroach allergy. Immu- nol Allergy Clin North Am. 23: 483-489. Kocak O (1990) Food preference and effi- ciency of boric acid on German cock- roaches, Blattella germanica (L.). Doga Turk Zooloji Dergisi. 14: 84-88.
Koehler PG, Patterson RS, Owens JM (1995) Chemical systems approach to German cockroach control. In: Rust MK, Owens JM, Reierson DA [eds.]: Understanding and controlling the German cockroach. Oxford University press. New York, pp. 287-323.
Ladonni H (2001) Evaluation of three meth- ods for detecting permethrin resistance in adult and nymphal Blattella germanica (Dictyoptera: Blattellidae). J Econ En- tomol. 94: 694-697.
Lee CY, Yap HH, Chong NL (1996) Insecti- cide resistance and synergism in field collected German cockroaches (Dic- tyoptera: Blattellidae) in Peninsular Ma- laysia. Bull Entomol Res. 86: 675-682.
Leicht W (1993) Imidacloprid- a chloronicotinly insecticide pestic. Pesticide Out- look. 4: 17-21.
Londershausen M (1996) Approaches to new parasiticides. pestic Science. 48: 269-292.
MacDonald RS, Annette GW, Kinoshita GB (1987) Control of German cockroaches, Blattella germanica L. (Orthoptera: Blat- tellidae), using hydramethylnon baits in an animal health facility. Proceedings of the Entomological Society of Ontario. pp. 118, 712.
Moschetti R (2004) Fipronil Briefing Docu- ment from PAN UK. IPM of Alaska. Avail- able at: http://www.ipmofalaska.com/ files/fipronil.html.
Mulla MS (1971) Control of chironomid midges in recreational lake. J Econ En- tomol. 64: 300-307.
Nasirian H, Ladonni H, Shayeghi M, Vatandoost H, Yaghoobi-Ershadi MR, Rassi Y, Abolhassani M, Abaei MR (2006b) Comparison of permethrin and fipronil toxicity against German cockroach (Dic- tyoptera: Blattellidae) strains, Iranian J Publ Health. 35: 63-67.
Nasirian H, Ladonni H, Vatandoost H, Shayeghei M, Poudat A (2006) Labora- tory performance of 0.05% fipronil and 2.15% imidacloprid gel baits against Ger- man cockroaches, Blattella germanica. Hormozgan Medical J. 10(2): 157-166.
Prado MA, Pimenta FC, Hayashid M, Souza PR, Pereira MS, Gir E (2002) En- terobacteria isolated from cock- roaches (Periplaneta americana) captured in a Brazilian hospital. Rev Pnam Salud Publica. 11: 93-8.
Reierson DA (1995) Baits for German cock- roach control. In: Rust MK, Owens JM, Reierson DA [eds.]: Understanding and controlling the German cockroach. Oxford University Press, New York, pp.231-265.
Roberts J (1996) Cockroaches linked with asthma. Br Med J. 312 (7047): 1630.
Ross MH (1993) Laboratory studies on the response of German cockroaches (Dic- tyoptera: Blattellidae) to abamectin gel bait. J Econ Entomol. 86: 767–771.
Scott JG (1991) Toxicity of abamectin and hydramethylnon to insecticide-suscepti- ble and resistant strains of German cock- roach (Dictyoptera: Blattellidae). Agric Entomol. 8: 77-82.
Scott JG, Cochran DG, Siegfried BD (1990)Insecticide toxicity, synergism, and re- sistance in the German cockroach (Dic- tyoptera: Blattellidae). J Econ Entomol.83: 1698-1703.
Tilak R, Tilak VW, Yadav JD, Dutta Gupta KK (2002) Eifficacy of fipronil and propoxur in the control of German cock- roaches (Dictyoptera: Blatellidae). J Com- mun Dis. 34: 65-9.
Valles SM (1999) K-cyhalothrin-resistance detection in the German cockroach (Blat- todea: Blattellidae). J Econ Entomol. 92:293-297.
Valles SM, Dong K, Brenner RJ (2000) Mechanisms responsible for cyperme- thrin resistance in a strain of German cockroach, Blattella germanica. Pestic Biochem Physiol. 66: 195-205.
Valles SM, Yu SJ (1996) Detection and bio- chemical characterization of insecticide resistance in the German cockroach (Dic- tyoptera: Blattellidae). J Econ Entomol.89: 21-26.
Wei Y, Appel AG, Moar WJ, Liu N (2001) Pyrethroid resistance and cross-resistance in the German cockroach, Blattella ger- manica (L.). Pest Manag Sci. 57: 1055-1059.