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Vol. 10, Special Issue 8 (2021)

Studies on seasonal incidence of whorl maggot and other major insect pests of rice

Author(s):
Kantesh KT, Dr. S Upendhar, Dr. K Vani Sree, Dr. S Ameer Basha and Dr. V Sridhar
Abstract:
Studies were conducted to record the seasonal incidence of whorl maggot and other major pests of rice at College farm, College of Agriculture, Rajendranagar, Hyderabad during late rabi 2020-21. The seasonal incidence of whorl maggot was noticed from7thstandard week (3rd week of February) and reached its peak activity during 10th SW (2nd week of March). The incidence of yellow stem borer was noticed during 7th SW and reached itspeak during 9th standard week and the highest per cent 27.59% of white ears were recorded during 14th SW (1st week of April). The initial 15 days of vegetative stage after transplantation the incidence of leaf folder was not observed. From 8th SW (21 DAT) the incidence of leaf folder larvae was observed. The incidence of leaf folder was highest during 11th SW (11.44%). The correlation studies revealed that per cent leaf damage by whorl maggot showed negative significant correlation with minimum temperature (r = -0.653*), RH-II (r = -0.849**). Whereas minimum temperature (r = 0.821**) showed significant positive correlation with the incidence of yellow stem borer. Furtherin case of leaf folder incidence, RH-II (r = -0.693*) showed significant negative correlation.
Pages: 280-283  |  441 Views  180 Downloads
How to cite this article:
Kantesh KT, Dr. S Upendhar, Dr. K Vani Sree, Dr. S Ameer Basha and Dr. V Sridhar. Studies on seasonal incidence of whorl maggot and other major insect pests of rice. The Pharma Innovation Journal. 2021; 10(8S): 280-283.

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