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STUDIES ON ECO-TOXICOLOGY AND MANAGEMENT OF MAJOR INSECT PESTS OF BRINJAL (Solanum melongena L.) AND OKRA (Abelmoschus esculentus (L.) Moench)
KrishiKosh
View Archive Info| Field | Value | |
| Title |
STUDIES ON ECO-TOXICOLOGY AND MANAGEMENT OF MAJOR INSECT PESTS OF BRINJAL (Solanum melongena L.) AND OKRA (Abelmoschus esculentus (L.) Moench)
Ph.D. |
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| Creator |
SUJAY ANAND, G. K.
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| Contributor |
R. K. Sharma
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| Subject |
Leucinodes orbonalis, Earias vittella, emamectin benzoate, neem, compatibility.
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| Description |
T-8745
Bio-efficacy and physical compatibility of biorational insecticides viz., emamectin benzoate and Neem baan was investigated against brinjal shoot and fruit borer, Leucinodes orbonalis Guenne and okra shoot and fruit borer, Earias vittella Fab. under field conditions during kharif 2010 and 2011. Eight different treatments including a control were evaluated. Both biorationals were found compatible with each other by using jar test and emulsion stability. The results revealed that in both brinjal and okra there was no phytotoxicity observed on emamectin benzoate with Neem baan combination. The lowest percent fruit infestation was observed in the treatment T6 (emamectin benzoate combined with Neem baan @ 7 ml per litre of water) i.e. 7.36% and 5.39% on number basis and 8.13% and 5.77% on weight basis in brinjal during kharif 2010 and 2011 respectively. The highest marketable fruit yield on weight basis was also obtained in the treatment T6 (12.35 t/ha and 16.89 t/ha) during kharif 2010 and 2011. Similarly in okra also T6 recorded lowest fruit infestation (5.92% and 5.59%) and highest marketable yield (1.62 t/ha & 2.19 t/ha) in 2010 and 2011 on weight basis. With regards to percent fruit infestation on weight basis in brinjal and okra, all the three combination treatments T4, T5 and T6 were superior over all other treatments during 2010 and 2011. Further, it was observed that the plant parameters like shoot length and number of flowers recorded significantly higher in (T6) than untreated control (T8) in both the years. The results indicated that the combination of neem formulation with emamectin benzoate was effective in managing L. orbonalis and E. vittella, besides minimising the chances of resistance. |
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| Date |
2016-08-27T13:29:53Z
2016-08-27T13:29:53Z 2012 |
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| Type |
Thesis
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| Identifier |
http://krishikosh.egranth.ac.in/handle/1/74091
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| Format |
application/pdf
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| Publisher |
IARI, Division of Entomology
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