A report on occurrence of aphidophagous predators of Aphis odinae (van der Goot) (Hemiptera: Aphididae) in cashew ecosystem from Goa, India

Ramasamy Maruthadurai, Narendra Pratap Singh

Abstract


The aphid, Aphis odinae (Van der Goot) (Hemiptera: Aphididae) is a polyphagous, occasional insect pest of cashew.  A field survey was conducted from 2014 to 2015 in cashew plantations to record the incidence of aphid and its predators.  Periodical sampling revealed, the occurrence of six species of aphidophagous predators comprising three species of coccinellids, viz., Scymnus castaneus Sicard, Cheilomenes sexmaculata (Fabricius) and Pseudaspidimerus flaviceps (Walker) and three species of syrphids, viz., Paragus serratus (Fabricius), Dideopsis aegrota (Fabricius) and Ischidon scutellaris (Fabricius) were found predating on A. odinae.  All the immature stages of predators were found predating on first, second, third and fourth instars of the aphid.  Among the coccinellids, the dominant species were S. castaneus (4.26 grubs/nut) followed by C. sexmaculata (0.42 grubs/leaf) and P. flaviceps (0.14 grubs/nut).  Of the syrphids, P. serratus 2.39 larvae/nut was the major predator. The species D. aegrota (1.2 larvae/leaf) and I. scutellaris (0.5 larvae/nut) were recorded as minor predators.  Seasonal abundance of predators was synchronized with the aphid with a maximum occurrence during February 2015.  The aphid population gradually reduced from April onwards due to the voracious feeding activity of the predators.  The study concluded that the aphidophagous predators, viz., coccinellids and syrphids play a  major role in managing the aphid A. odinae in cashew and could be encouraged for augmentation and conservation of these predators in a cashew based ecosystem.


Keywords


Aphid; cashew; coccinellids; predation; predators; syrphids.

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References


Barbagallo, S. & L.A. Santos (1989). Toxoptera odinae (V.D.G.) (Homoptera: Aphididae), infesting (Anacardium occidentale L.) in Mozambique. [Toxoptera odinae (V.D.G.) (Homopter: Aphididae), uma nova praga do cajueiro (Anacardium occidentale L.) em Mocambique.] Phytophaga 3: 163–171.

Baskaran, R.K.M., S, Sasikumar, D.S. Rajavel & K. Suresh (2009). Studies on population fluctuation of guava aphid, Aphis gossypii Glover (Hemiptera: Aphididae) and its predators. Journal of Entomological Research 33: 247–255.

Blackman, R.L., M. Sorin & M. Miyazaki (2011). Sexual morphs and colour variants of Aphis (formerly Toxoptera) odinae (Hemiptera: Aphididae) in Japan. Zootaxa 3110: 53–60.

Devi, K.D., S. Maisnam & R. Varatharajan (2010). Density, diversity and differential feeding potentials of aphidophagous insects in the tea ecosystem. Journal of Biopesticides 3: 58–61

Dhingra, S. (1992). Development of resistance in the bean aphid Aphis

craccivora to various insecticides used for nearly a quarter century. Journal of Entomological Research 18(2): 105–108.

Garcia, B.U. (1974). Laboratory study on the biology and predation of Scymnus on Aphis gossypii. Revista Peruana de Entomologia 17: 54–59.

Lokeshwari, D., A. Verghese, S. Shivashankar, N.K. Krishna Kumar, H. Manjunatha & R. Venugopalan (2014). Effect of Aphis odinae (Hemiptera: Aphididae) infestation on sugars and amino acid content in mango. African Entomology 22(4): 823–827; http://doi.org/10.4001/003.022.0418

Mani, M. & A. Krishnamoorthy (1989). Impact of insect predators in the control of Aphis gossypii Glov. on guava. Journal of Biological Control 3: 128–129.

Martin, J.H. (1989). Identification, occurrence and pest status of Toxoptera odinae (Van der Goot) (Hemiptera: Aphididae) in Africa. Bulletin of Entomological Research 79: 611.

Maruthadurai, R. & N.P. Singh (2015). First report of invasive mealybug Phenacoccus solenopsis Tinsley infesting cashew from Goa, India. Phytoparasitica 43: 121–124; http://doi.org/10.1007/s12600-014-0421-6

Poorani, J. (2002). An annotated checklist of the Coccinellidae (Coleoptera) (excluding Epilachninae) of the Indian subregion. Oriental Insects 36: 307–383; http://doi.org/10.1080/00305316.2002.10417335

Raychaudhuri, D.N., D. Ghosh, D. Raychaudhuri & B.K. Agarwala (1981). Studies on the aphids (Homoptera: Aphididae) from South India. Insecta Matsumura 23: 1–20.

Satapathy, C.R. (1993). Bioecology of major insect pests of cashew (Anacardium occidentale L.) and evaluation of certain pest management practices. PhD Thesis. University of Agricultural Sciences, Bangalore, India.

Sunil, J., C.R. Ballal & N.S. Rao (1999). Evaluation of biotic potential of Syrphid predators Ischiodon scutellaris (Fabr.) and Paragus serratus (Fabr.) (Diptera: Syrphidae). Journal of Aphidology 13: 9–16.

Venugopal, M.S., N. Rajmohan & A.A. Basha (1975). Some observations on the natural population of Aphis gossypii Glov. (Aphididae: Homoptera) on Bhendi and its coccineliid predators. Labdev Journal of Science and Technology 13: 237–239.

Vidya, M. & K.M. Rajanna (2014). Role of Insect Predators in the Control of Toxoptera odinae (Hemiptera: Aphididae) in Cashew Plantation. Biopesticides International 10(1): 112–115.




DOI: http://dx.doi.org/10.11609/jott.2435.9.2.9858-9861

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