B. Nagendra Reddy1*, V. Jhansi Lakshmi2, G.S. Laha2 and T. Uma Maheswari1
1College of Agriculture, Rajendranagar, PJTSAU, Hyderabad; 2 Indian Institute of Rice Research, Rajendranagar, Hyderabad
Received-20.02.2016, Revised-27.02.2016
Abstract: Compatibility between imidacloprid and entomopathogenic fungi studies were conducted at IIRR (Indian Institute of Rice Research), Hyderabad. Imidacloprid was tested at three concentrations viz., recommended concentration (RC), sub lethal concentration (0.5 RC) and more than recommended concentration (1.5 RC) against three entomopathogenic fungi viz., Beauveria bassiana, Metarhizium anisopliae and Lecanicillium lecanii (Verticillium lecani) by using poison food technique under laboratory conditions. Imidacloprid was harmless to B. bassiana and L. lecanii at three tested concentrations and slightly harmful to M. anisopliae at 1.5 RC. Combined use of imidacloprid with entomopathogenic fungi at recommended concentrations against BPH under glasshouse conditions indicating increased mortality of BPH compared to imidacloprid alone spray.
Keywords: Compatibility, Entomopathogenic fungi, Beauveria, Metarhizium, Lecanicillium, Planthopper
REFERENCES
Hassan, S.A. (1989). Testing methodology and the concept of the IOBC/WPRS working group. Pp. 1-8. In: Jepson, P.C.(Ed.). Pesticides and Non-target invertebrates. Intercept, Wimborne, Dorset.
Hokkanen, H.M.T and Kotiluoto, R. (1992). Bioassay of the side effects of pesticides on Beauveria bassiana and Metarhizium anisopliae: standardized sequential testing procedure. IOBC/WPRS Bull. 11(3): 148-151.
Jhansi Lakshmi, V., Krishnaiah, N.V and Katti, G.R., Pasalu, I.C and Vasanthabhanu, K. (2010c). Development of insecticide resistance in rice brown planthopper and whitebacked planthopper in Godavari delta of Andhra Pradesh. Indian Journal of Plant protection. 38(1): 35-40.
Kim, J.J and Kim, K.C. (2007). Compatibility of Entomopathogenic fungus Lecanicillium attenuatum and Pesticides to control Cotton Aphid, Aphis gossypii. International Journal of Industrial Entomology. 14(2): 143-146.
Matsumura, M., Hiroaki, T., Satoh, M., Morimura, S.S., Otuka, A., Tomonari, W and Thanh, D.V. (2008a). Current status of insecticide resistance in rice planthoppers in Asia. Paper presented at international Planthopper conference organized by International Rice Research Institute, Los Banos, Philippines, June, 23-25, 2008.
Moorhouse, E.R., Gillsepie, A.T., Sellers, E.K and Charnley, A.K. (1992). Influence of fungicides and insecticides on the entomogenous fungus, Metarhizium anisopliae, a pathogen of the vine weevil, Otiorhynchus sulcatus. Biocontrol Science and Technolnology, 82: 404 – 407.
Rachappa, V. Lingappa, S and Patil, R.K. (2007b). Effect of agrochemicals on growth and sporulation of Metarhizium anisopliae (Metschnikoff) Sorokin. Karnataka Journal of Agricultural Sciences. 20(2): 410-413.
Sahoo, B and Dangar, T. K. (2014). Compatibility of some fungal entomopathogens of rice leaf folder (Cnaphalocrocis medinalis Guinee) with selected chemical insecticides. Journal of Microbiology and Biotechnology Research. 4 (4):1-7.
Singh, R.K., Vats, S., Singh, B and Singh, R.K. (2014). Compatibility analysis of entomopathogenic fungi Beauveria bassiana (NCIM No-1300) with several pesticides. Research Journal of Pharmaceutical, Biological and Chemical Sciences. 5(1): 837- 844.