Vol. 12, Issue 10 (2023)

Author(s):
Satyam Mandloi, Yogita Dawar, Pushplata Dawar and UC Singh

Abstract:
Seasonal occurrence of okra-insect pests and identify okra varieties less vulnerable to Earias vittella (F.), the shoot and fruit borer, whitefly, and jassid. The outcomes are listed below in summary form. Whitefly and jassid activity peaked in the first week of July (27^th SW) and persisted until the fourth week of November (47^th SMW). At (33^rd SMW), where the minimum and maximum temperatures as well as the relative humidity were 33.4 °C, 25.9 °C, and 72.3%, respectively, the whitefly and jassid populations were at their peak. Okra shoot and fruit borer activity began in the third week following transplantation (the 29^th SMW) and persisted through the fourth week of November (the 47^th SMW). At 34^th SMW, the highest point for shoot infestation was recorded at 37.6 °C, the lowest for maximum temperature and relative humidity was 26.8 °C and 59.3% at 39^th SMW, the highest point for fruit infestation was observed at 36.0 °C, the lowest for maximum temperature and relative humidity was 24.9 °C and 58.3%. The population of jassids and whiteflies in the current study significantly correlated positively with both the minimum and maximum temperatures. Conversely, a statistically significant positive association was noted between the relative humidity and the populations of jassids and whiteflies. Additionally, a highly favourable association between fruit infestation and the lowest and maximum temperatures was found.