Eur. J. Entomol. 112 (1): 69-74, 2015 | DOI: 10.14411/eje.2015.020
Functional response of Rhynocoris kumarii (Hemiptera: Reduviidae) to different population densities of Phenacoccus solenopsis (Hemiptera: Pseudococcidae) recorded in the laboratory
- 1 Crop Protection Research Centre, St. Xavier s College, Palayamkottai 627 002, Tamil Nadu, India; e-mail: email@example.com
- 2 Mid-Florida Research and Education Center, University of Florida, 2725 South Binion Road, Apopka, FL 32703, USA; e-mail: firstname.lastname@example.org
- 3 Indian River Research and Education Center, University of Florida, 2199 South Rock Road, Fort Pierce, FL 34945, USA; e-mail: email@example.com
Cotton mealy bug, Phenacoccus solenopsis Tinsley, a polyphagous pest is a serious threat to cotton production in several parts of Southeast Asia. Lack of an effective predator against this pest has resulted in the use of intensive chemical-based management strategies. Studies were carried out under laboratory conditions to determine the functional response of the adults and nymphs of a generalist reduviid predator, Rhynocoris kumarii Ambrose and Livingston, to different population densities (1, 2, 4, 6, 8 and 10) of P. solenopsis. Males, females and nymphs of this reduviid showed a type II functional response. There was no significant difference in the attack rate of male and female R. kumarii; however, prey-handling times of the sexes differed significantly. Of the sexes, males were more aggressive and killed a significantly higher number of third instar mealy bugs than females and had a Holling type II curvilinear functional response. Functional responses of the nymphal instars (third, fourth and fifth) and adults (female and male) of R. kumarii were more pronounced than those of the first and second nymphal instars. Results indicate that the nymphal instars of R. kumarii can be more effective at regulating P. solenepsis than adult reduviids. The findings of this study are important as they demonstrate the considerable potential of R. kumarii for controlling the cotton mealy bug, but now need to be evaluated under greenhouse and field conditions.
Keywords: Hemiptera, Reduviidae, Rhynocoris kumarii, Pseudococcidae, Phenacoccus solenopsis, bioefficacy, functional response, reduviid predator, cotton mealybug, biological control
Received: July 2, 2014; Accepted: October 13, 2014; Revised: October 13, 2014; Prepublished online: December 1, 2014; Published: January 25, 2015Show citation
- Abrams P.A. 1990: The effects of adaptive behavior on the type-II functional response. - Ecology 71: 877-885 Go to original source...
- Ambrose D.P. 2000: Suppression of Helicoverpa armigera (Hubner) and Anomis flava (Fabricius) infesting okra by the reduviid predator Rhynocoris kumarii Ambrose and Livingstone in field cages. - Pest Manag. Hortic. Ecosyst. 6: 32-35
- Ambrose D.P. & Claver M.A. 1997: Functional and numerical responses of the reduviid predator, Rhynocoris fuscipes Fab. (Heteroptera: Reduviidae) to cotton leafworm Spodoptera litura Fab. (Lepidoptera: Noctuidae). - J. Appl. Entomol. 121: 331-336 Go to original source...
- Ambrose D.P. & Claver M.A. 2001: Prey preference of the predator Rhynocoris kumarii (Heteroptera: Reduviidae) to seven cotton insect pests. - J. Appl. Zool. Res. 12: 129-132
- Ambrose D.P. & Rani M.R.S. 1991: Prey influence on the laboratory mass rearing of Rhinocoris kumarii Ambrose and Livingstone, a potential biological control agent (Insecta: Heteroptera: Reduviidae). - Mitt. Zool. Mus. Berl. 67: 339-349 Go to original source...
- Ambrose D.P. & Sahayaraj K. 1993: Predatory potential and stage preference of reduviid predator, Allaeocranum quadrisignatum (Reuter) on Dysdercus cingulatus Fab. - J. Biol. Contr. 7: 12-14
- Ambrose D.P. , Rajan P. , Jesu S. & Micheal R.J. 2008: Functional response of Rhynocoris kumarii Ambrose and Livingstone and normal and Synergy-505 exposed Rhynocoris marginatus (Fab.) to larva of Euproctis fraterna (Moore). - Indian J. Entomol. 70: 206-216
- Ben-Dov Y., Miller D.R. & Gibson G.A.P. 2009: ScaleNet: A Searchable Information System on Scale Insects. Available on-line at http://www.sel.barc.usda.gov/scalenet/scalenet.htm (accessed 8 August 2009)
- Claver M.A. & Ambrose D.P. 2001a: Evaluation of Rhynocoris kumarii Ambrose and Livingstone (Hemiptera: Reduviidae) as a potential predator of some lepidopteran pests of cotton. - J. Biol. Contr. 15: 15-20
- Claver M.A. & Ambrose D.P. 2001b: Impact of augmentative release of Rhynocoris kumarii Ambrose and Livingstone (Heteroptera: Reduviidae) on Dysdercus cingulatus (Fabricius) (Hemiptera: Pyrrhocoridae) population and damage on cotton. - J. Biol. Contr. 15: 119-125
- Claver M.A. & Ambrose D.P. 2002: Functional response of the predator, Rhynocoris fuscipes (Heteroptera: Reduviidae) to three pests of pigeon pea. - Shashpa 9: 47-51
- Claver M.A., Rajan K. & Ambrose D.P. 1996: Impact of mass rearing in the postembryonic development of Rhynocoris kumarii Ambrose and Livingstone (Heteroptera: Reduviidae). In Ambrose D.P. (ed.): Biological and Cultural Control of Insect Pests, an Indian Scenario. Adeline, Tirunelveli, India, pp. 216-219
- Fantinou A.A., Perdikis D.C., Maselou D.A. & Lambropoulos P.D. 2008: Prey killing without consumption: does Macrolophus pygmaeus show adaptive foraging behavior. - Biol. Contr. 47: 187-193 Go to original source...
- Fantinou A.A., Perdikis D.C., Labropoulosa P.D. & Maselou D.A. 2009: Preference and consumption of Macrolophus pygmaeus preying on mixed instar assemblages of Myzus persicae. - Biol. Contr. 51: 76-80 Go to original source...
- Getty T. & Pulliam H.R. 1991: Random prey detection with pause-travel search. - Am. Nat. 138: 1459-1477 Go to original source...
- Hodgson C.J., Abbas G., Arif M.J., Saeed S. & Karar H. 2008: Phenacoccus solenopsis Tinsley (Sternorrhyncha: Coccoidea: Pseudococcidae), a new invasive species attacking cotton in Pakistan and India, with a discussion on seasonal morphological variation. - Zootaxa 1913: 1-35
- Holling C.S. 1965: The functional response of predators to prey density and its role in mimicry and population regulation. - Mem. Entomol. Soc. Can. 48: 3-60 Go to original source...
- Murdoch W.W. & Oaten A. 1975: Predation and population stability. - Adv. Ecol. Res. 9: 1-131 Go to original source...
- Nagrare V.S., Kranthi S., Biradar V.K., Zade N.N., Sangode V., Kakde G. , Shukla R.M., Shivare D. , Khadi B.M. & Kranthi K.R. 2009: Widespread infestation of the exotic mealybug species, Phenacoccus solenopsis (Tinsley) (Hemiptera: Pseudococcidae), on cotton in India. - Bull. Entomol. Res. 99: 537-541 Go to original source...
- Nagrare V.S., Kranthi S., Kumar R., DharaJothi B., Amutha M., Deshmukh A.J. , Bisane K.D. & Kranthi K.R. 2011: Compendium of Cotton Mealybugs. Central Institute for Cotton Research, Nagpur, 42 pp. http://www.cicr.org.in/pdf/compendium_of_cotton_mealybugs.pdf
- Rocha L. da & Redaelli L.R. 2004: Functional response of Cosmoclopius nigroannulatus (Hem.: Reduviidae) to different densities of Spartocera dentiventris (Hemiptera: Coreidae) nympha. - Braz. J. Biol. 64: 309-316 Go to original source...
- Sahayaraj K. 1991: Bioecology, Ecophysiology and Ethology of Chosen Predatory Hemipterans and their Potential in Biological Control (Insecta: Heteroptera: Reduviidae). Ph.D. Thesis, Madurai Kamaraj University, Madurai, India, 303 pp
- Sahayaraj K. 2012: Hunter reduviids in pest management for plantation crops. In Thomas S. (ed.): Selected Beneficial and Harmful Insects of Indian Subcontinent. Lap Lambert Academic Publishing, Colne, pp. 58-69
- Sahayaraj K. & Asha A. 2010: Biological control potential evaluation of Rhynocoris kumarii Ambrose and Livingstone on Aphis craccivora (Koch). - Indian J. Agric. Sci. 44: 281-287
- Sahayaraj K. & Sivakumar K. 1995: Groundnut pest and pest stage preference of a reduviid predator Rhynocoris kumarii Ambrose and Livingstone (Heteroptera: Reduviidae). - Fresen. Environ. Bull. 4: 263-269
- Sahayaraj K., Kalidas S. & Majesh T. 2012: Stage preference and functional response of Rhynocoris longifrons (Stal) (Hemiptera: Reduviidae) on three hemipteran cotton pests. - Brazil. Arch. Biol. Technol. 55: 733-740 Go to original source...
- Solangi G.S., Lohar M.K., Abro G.H. & Buriro A.S. 2012: Biology and release of exotic predator Cryptolaemus montrouzieri Mulsant on mealybug Phenacoccus solenopsis Tinsley at Tandojam. - Sarhad J. Agric. 28: 429-435
- Tanwar R.K, Jeyakumar P. & Monga D. 2007: Mealybugs and their Management. Technical Bulletin 19, September, 2007. National Centre for Integrated Pest Management, LBS Building, Pusa Campus, New Delhi 110 012. http://www.ncipm.org.in/mealybugs/Bulletin-Mealybugs%20(English).pdf (accessed 9 September 2014)
- Vennila S., Deshmukh A.J., Pinjarkar D., Agarwal M., Ramamurthy V.V., Joshi S., Kranthi K.R. & Bambawale O.M. 2010: Biology of the mealybug, Phenacoccus solenopsis on cotton in the laboratory. - J. Insect Sci. 10:115, 9 pp. Available online: insectscience.org/10.115 Go to original source...
- Wang Y.P., Wu S.A. & Zhang R.Z. 2009: Pest risk analysis of a new invasive pest, Phenacoccus solenopsis to China. - Chinese Bull. Entomol. 46: 101-106
- Zaka S.M., Saeed S., Bukhari S.A. & Baksh E. 2006: Mealybug, Phenacoccus solenopsis (Homoptera: Pseudococcidae): a novel pest of cotton in Pakistan. In: Proceedings of 34th Pakistan (SAARC) Countries Science Conference, University of Veterinary and Animal Sciences, February 8-10, 2006, Lahore, Pakistan. p 32
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