Journal of Pharmacognosy and Phytochemistry
Vol. 7, Issue 1 (2018)
Studies on insect-pests of soybean (Glycine max) with special reference to seasonal incidence of lepidopteran defoliators
Author(s):
Sarvesh Kumar Brahman, AK Awasthi and Shailendra Singh
Abstract:
The field experiment was conducted at BTC College of Agriculture and Research Station, Bilaspur, Chhattisgarh, during 2016-17. Study about seasonal incidence of pre-dominant lepidopteran insect-pests in soybean crop the soybean leaf folder (
Omiodes indicata Fab.), tobacco caterpillar (
Spodoptera litura Fab.), green semilooper (
Chrysodexis acuta Walker), leaf webber (
Anarsia ephippias Mullar) and pod borer (
Helicoverpa armigera Hub.) were major defoliator insect causing damage at various growth stages of the soybean crop. The peak activity of
Omiodes indicata Fab. (1.67 larvae/mrl) and
Spodoptera litura Fab. (1.47 larvae/mrl) were observed during third week of September. Whereas,
Chrysodeixis acuta (1.0 larvae/mrl),
Anarsia ephippias (0.6 larvae/mrl) and
Helicoverpa armigera (0.67 larvae/mrl) were recorded during first week of September, third week of August and fourth week of August, respectively.
Pages: 1808-1811 | 1553 Views 511 Downloads
Sarvesh Kumar Brahman, AK Awasthi and Shailendra Singh. Studies on insect-pests of soybean (Glycine max) with special reference to seasonal incidence of lepidopteran defoliators. J Pharmacogn Phytochem 2018;7(1):1808-1811.