Journal of Pharmacognosy and Phytochemistry
Vol. 8, Issue 5 (2019)
Seasonal incidence of rice yellow stem borer, Scirpophaga incertulas (Walk.) and its correlation with weather parameters and natural enemies
Author(s):
Rekha M Samrit, BN Chaudhari and KD Gahane
Abstract:
A field experiment was conducted during
kharif season of 2018 at Agriculture Research Station, Sakoli, Dist. Bhandara (MS) under Dr. Panjabrao Krishi Vidyapeeth, Akola to study the seasonal incidence of major insect pests in an experimental plot of 500 m
2 and incidence of major insect pests were correlate with natural enemies and abiotic factors. The results revealed that, Incidence of rice stem borer was initiated from 32
nd MW and continued to 47
th MW and its peak incidence during 36
th MW (6.45% DH) and 42
nd MW (11.23% DH). Similarly 5.9 per cent white earheads was recorded before harvesting during 47
th MW. The peak population of spiders was observed at 47
th MW (0.67 nos./hill) and the correlation analysis results revealed that, minimum temperature (r= -0.501) had significant negative correlation with incidence of rice stem borer.
Pages: 740-742 | 1504 Views 848 Downloads
Rekha M Samrit, BN Chaudhari and KD Gahane. Seasonal incidence of rice yellow stem borer, Scirpophaga incertulas (Walk.) and its correlation with weather parameters and natural enemies. J Pharmacogn Phytochem 2019;8(5):740-742.