Bioefficacy of different insecticides on cowpea aphid (Aphis craccivora Koch)

Roshan Dhakal, Reeta Ghimire, Madan Sapkota, Samita Thapa, Atal K. Bhatta, Rajendra Regmi

Abstract


Aphid (Aphis craccivora Koch) is one of the serious pests of cowpea. Bioefficacy of four insecticides with different concentrations namely Jholmol (125 ml/L), Neemix (2 ml/L), Cannabis extract (100 g/L), Chlorpyrifos 50% EC and Cypermethrin 5% EC (2 ml/L) along with control were evaluated against aphid at Research Station of Agriculture and Forestry University, Rampur, Chitwan, Nepal in 2018. Five treatments; four different insecticides and control were laid out in a randomized complete block design with four replications. The results indicated that all the insecticides were significant for aphid reduction. The effects were higher in Neemix followed by Jholmol and cannabis extract. The yield of cowpea was significantly highest (11.10 t/ha) with Neemix application, while lowest in control (7.58 t/ha). The highest net profit (NRs.61670) was obtained in Neemix followed by treatments of Jholmol (NRs.46175) and Cannabis extract (NRs.35815). The lowest incremental Cost/Benefit ratio was obtained in Neemix (1.341) and followed by treatments of, jholmol (1/1.12) and Cannabis extract (1/0.85), respectively. Thus, application of Neemix @ 2 ml/L could be used in cowpea to control aphid with high yield.


Keywords


Aphid; Aphis craccivora Koch; insecticides; bioefficacy; cowpea

Full Text:

ACCEPTED

References


Baidoo, P. K., D. Baidoo-Ansah and I. Agbonu. 2012. Effects of neem (Azadirachta indica A. Juss) products on Aphis craccivora and its predator Harmonia axyridis on cowpea. American Journal of Experimental Agriculture, 2: 198-206.

Chejara, B. K. 2013. Studies on Gram Pod Borer, Helicoverpa armigera (Hub.) on Chickpea and its control with insecticides and biopesticides (Unpublished) M.Sc. thesis, Jawaharlal Nehru Krishi Vishwavidyalaya, Jabalpur, M.P., India.

Choudhary, A. L., A. Hussain, M. D. Choudhary, R. Samota and S. Jat. 2017. Bioefficacy of newer insecticides against aphid, Aphis craccivora Koch on cowpea. Journal of Pharmacognosy and Phytochemistry, 6: 1788-1792.

El-Ghareeb, A. M., M. A. K. Nasser, A. M. K. El-Sayed and G. A. Mohamed. 2002. Possible mechanisms of insecticide resistance in the cowpea aphid Aphis craccivora Koch ll The role of general estrase and oxidase enzymes in insecticide resistance of cowpea aphid. Nepal's First Conference on Agriculture: 635-649.

Gomez, A. A. and K. A. Gomez. 1984. Statistical procedures for agricultural research. Statistical Procedures for Agricultural Research, 6: 680.

Jackai, L. E. N. 1993. The use of Neem in controlling cowpea pests. UTA Research, 7: 5-11.

Kotadia, V. S. and P. A. Bhalani. 1992. Residual toxicity of some insecticides against Aphis craccivora Koch on cowpea crop. Gujarat Agricultural University Research Journal, 17: 161-164.

Kumar, V. S. and V. Navaratnam. 2013. Neem (Azadirachta indica): prehistory to contemporary medicinal uses to humankind. Asian Pacific journal of tropical biomedicine, 3: 505-514.

LWF Nepal. 2017. Identification and Scientific Documentation of the Indigenous Eco-friendly and Climate-resilient Agricultural Practices in Nepal, p. 11-15.

Mordue, A. J. and A. J. Nisbet. 2000. Azadirachtin from the neem tree Azadirachta indica: its action against insects. Anais da Sociedade Entomológica do Brasil, 29: 615-632.

Partridge, M. J. and J. H. Borden. 1997. Evaluation of neem seed extract for control of the spruce aphid, Elatobium abietinum (Walker) (Homoptera: Aphidae). Canadian Entomologist, 129: 899-906.

Prasannath, K. and S. Mahendran. 2013. Efficacy of botanicals on the control of cowpea pests. International Conference of Eastern University. Eastern University, Sri Lanka.

Püntener, W. 1981. Manual for field trials in plant protection second edition. Agricultural Division, Ciba-Geigy Limited, Delhi, India.

Satpathy, S., T. M. Shivalingaswami, A. Kumar, A. B. Raj and M. Rai. 2009. Efficacy of biopesticides and new insecticides for managements of cowpea pod borer, Maruca vitrata. International conference on grain legumes: Quality improvement value addition and trade.

Schepers, A. 1988. Aphids- their biology, natural enemies and control. World Crop Pests, 2C. Elsevier, Amsterdam, p. 89-121.

Singh, B. B., D. R. MohanRaj and K. E. Dashiell. 1997. Advances in cowpea research. Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Japan, p. 375.

Tang, Y. Q., Weathersbee, A. A. III and R. T. Mayer. 2002. Effect of neem seed extract on Brown citrus aphid (Homoptera: Aphididae) and its parasitoid Lysiphlebus testaceipes (Hymenoptera: Aphidiidae). Environmental Entomology, 31: 172-176.

Thapa, R. B. and D. R. Dangol. 1988. A preliminary survey of weed flora at IAAS and its vicinity, In: F. P. Neupane, (ed.), IAAS Research Report (1985-1991). Institute of Agriculture and Animal Science, Rampur, Chitwan, Nepal. p. 59-65.

Ulrichs, C. H., I. Mewis and W. H. Schnitzler. 2001. Efficacy of neem and diatomaceous earth against cowpea aphids and their deleterious effect on predating Coccinelidae. Journal of Applied Entomology, 125: 571-575.




DOI: https://doi.org/10.33687/entomol.007.01.2629

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

 

International Journal of Entomological Research

ISSN: 2310-3906 (Online), 2310-5119 (Print).

© ESci Journals Publishing. All Rights Reserved.

.