REACTION OF COWPEA GENOTYPES FOR RESISTANCE AGAINST LEGUME POD BORER, Maruca vitrata (Fabricius)

S. AARTHI *

Department of Entomology, Annamalai University, Chidambaram, Tamil Nadu, India.

V. SELVANARAYANAN

Department of Entomology, Annamalai University, Chidambaram, Tamil Nadu, India.

*Author to whom correspondence should be addressed.


Abstract

Among different pulses, cowpea is considered as most important source of nutrition to human and livestock. Several insect pests cause major constraint in cowpea production. Among the pests, the legume pod borer, Maruca vitrata (Fabricius) is a serious threat which ultimately reduces the quality and quantity of the economic produce. Management of M. vitrata using insecticides is commonly followed. But, indiscriminate use of insecticides leads to unwanted repercussions in the environment. It prompted to turn the focus on eco friendly methods to manage this pest. Among various management methods, use of tolerant and/or resistant genotypes is the first line of defence against insect pests. In the light of this consideration, 280 cowpea genotypes were screened against M. vitrata during Rabi, 2020 and Kharif, 2021 seasons at Vallampadugai Village, Cuddalore district, Tamil Nadu state, India. The per cent flower and pod infestation were noted at different days after sowing. The results revealed that, minimum flower infestation was noted on IC-202800(6.60% and 5.00%) in both rabi and kharif. Maximum infestation in rabi and kharif was noted on IC-249141(76.66%) and IC-9883 (66.66%) respectively. Minimum and maximum per cent pod infestation was noted on IC-39870 (15.00% in rabi and 10.00% in kharif) and EC-161916(100% in rabi and 93.33% in kharif) in both seasons. Based on per cent pod damage, 30 genotypes were found highly resistant, with 52 moderately resistant, 81 susceptible genotypes and 38 highly susceptible genotypes in rabi season. In kharif, 18 genotypes were highly resistant and 86 genotypes have recorded moderately resistant in contrast to 13 genotypes secured highly susceptible ratings.

Keywords: Cowpea, genotypes, field screening, Maruca vitrata, resistance


How to Cite

AARTHI, S., & SELVANARAYANAN, V. (2022). REACTION OF COWPEA GENOTYPES FOR RESISTANCE AGAINST LEGUME POD BORER, Maruca vitrata (Fabricius). UTTAR PRADESH JOURNAL OF ZOOLOGY, 43(11), 1–6. https://doi.org/10.56557/upjoz/2022/v43i113043

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References

Alghali AM. Intercropping as a component for insect pest management for cow pea Vigna unguiculata Walp. production in Nigeria. Insect Sci. and its Appl. 1993;14:49-54.

Singh BB, Ajeigbe HA, Tarawali SA, Fernandez-Rivera S, Abubakar M. Improving the production and utilization of cowpea as food and fodder. Field Crops Res. 2003;84(1-2):169-177.

Singh SE, Jackai LEN. Insect pests of cowpeas in Africa: their life cycle, economic importance and potential for control. Cowpea Res prod Util. 1985;2:217-231.

Chouraddi M, Balikai RA, Mallapur CP, Topagi SC. Present status on bio-ecology and management of spotted pod borer, Maruca vitrata (Geyer). Res J. Agric. Sci. 2012;3(2):571-577.

Sharma HC. Bionomics, host plant resistance and management of legume pod borer, Maruca vitrata- a review. Crop Prot. 1998;17:373-386.

Alabi OY, Odebiyi JA, Jackai LEN. Field evaluation of cowpea cultivars (Vigna unguiculata (L) Walp.) for resistance to flower bud thrips (Megalurothrips sjostedti Trybom) (Thysanoptera: Thripidae). In.l J. of Pest Mgmt. 2003;49:287-291.

Fatokun CA. Breeding cowpea for resistance to insect pests: attempted 52 crosses between cowpea and Vigna vexillata. In: Fatokun CA, Tarawali, SA, Singh, BB, Kornawa, pm, Tamo M. (eds). Challenges and opportunities for enhancing sustainable cowpea production, Proceedings of the world Cowpea conference III. International Institute of Tropical Agriculture (IITA), Ibadan Nigeria, 4-8 September 2000. IITA, Ibadam, Nigeria. 2002;52-61.

Jackai LE. A field screening technique for resistance of cowpea (Vigna unguiculata) to the pod-borer Maruca testulalis (Geyer) (Lepidoptera: Pyralidae). Bull. Entomol. Res. 1982;72(1):145-156.

Lalasangi MS. Bionomics, loss estimation and control of the pod borer, Maruca testulalis (Geyer) (Lepidoptera: Pyralidae) on cowpea (Vigna unguiculata W.). M. Sc. (Agri.) Thesis, University of Agricultural Sciences, Bangalore, Karnataka (India). 1984;187-188.

Anusha C, Balikai RA, Deshpande SK. Screening of cowpea genotypes against different insect pests. J Exp Zool. 2013; 16(2):683-688.

Jayappa BG. Screening of cowpea germplasm for resistance to pod borers and aphids. M. Sc. (Agri.) Thesis, University of Agricultural Sciences, Bangalore, Karnataka, India. 1984;32-34.