Vol. 11, Issue 9 (2022)

Author(s):
Neha Kumari, Vinod Kumar, Anupam Kumar, Alok Kumar, Kailash Sati, Om Prakash and Nalini Kapoor

Abstract:
The present investigation entitled “Studies on the Biology of Maize weevil, (Sitophilus zeamais Motschulsky)” was conducted at Abhilashi University Mandi, Himachal Pradesh. Under laboratory condition in BOD Incubator with three replications. The result shows that the laboratory experiments and revealed that the duration of various developmental stages such as incubation period, larval period, pupal period and adult longevity. The incubation period ranged from 7 to 10 days with mean 8.21±0.025 and the total larval period ranged from 31 to 38 days with mean 37.46±0.033 days and the total pupal period ranged from 9 to 14 days with mean 11.33±0.022 days. The total life cycle from egg to adult as 87 to 102 days with mean of 92.37±0.08 days in males and 98 to 109 days with mean of 98.62±0.154 days in females during winter November 2021 to January 2022 the temperature and relative humidity ranges from 30 °C and 60-75% RH respectively.