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Current IssueEditorial BoardOnline First ArticlesArchive

Research Article

volume 53 issue 5 (october 2019) : 599-603,   Doi: 10.18805/IJARe.A-5196

Field evaluation of biocontrol agents and biopesticides against spotted pod borer, Maruca vitrata (Geyer) on lablab 

K
K. Haripriya
S
S. Jeyarani
S
S. Mohankumar
R
R.P. Soundararajan
1Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore- 641 003, Tamil Nadu, India.
Cite article:- Haripriya K., Jeyarani S., Mohankumar S., Soundararajan R.P. (2019). Field evaluation of biocontrol agents and biopesticides against spotted pod borer, Maruca vitrata (Geyer) on lablab. Indian Journal of Agricultural Research. 53(5): 599-603. doi: 10.18805/IJARe.A-5196.

ABSTRACT

Microplot field trial was conducted from March to May 2017 to assess the efficacy of various biopesticides, pathogen, predator and parasitoid against M. vitrata on lablab (var. Co Gb 14). The experiments were carried out in a randomized block design (RBD) with nine treatments and three replications. Results revealed that spinosad 45% SC @ 75 ml ha-1 was significantly superior to all other treatments by recording a cumulative mean population reduction of 72.58 per cent. The next in the order of efficacy were emamectin benzoate 5% SG @ 200 ml ha-1 (65.16 %) > sequential application of emamectin benzoate (200 ml ha-1) + Bracon brevicornis (2000 adults ha-1 released after fortnight) (63.70%) > emamectin benzoate (100 ml ha-1) + B. brevicornis (1000 adults ha-1) @ half the dose each (62.06 %) > azadirachtin 0.03% @ 2.5 L ha-1 (39.33 %) > B.  brevicornis @ 2000 adults ha-1(32.77 %) > Crude suspension of B. bassiana (Bb 112) @ 108 Spores ml-1 (25.95 %) > Xylocoris flavipes @ 40,000 adults ha-1 (20.22 %).

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Indian Journal of Agricultural Research
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