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Vol. 11, Special Issue 1 (2022)

Age specific life-table of Bactrocera dorsalis (Hendel) under room temperature

Author(s):
Vinod Kumar, Rajendra Singh, Ankur Prakash Verma, Pankaj Batham, Ravi Shankar, Sushant Kumar and Reetesh Pratap Singh
Abstract:
The present investigation entitled “Age specific life-table of Bactrocera dorsalis under room temperature”. The experiments were undertaken at Bio-control Laboratory, Department of Entomology, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut (U.P.) during years 2019. It was the insect required 71 days for the complete its generation at room temperature. The table clearly revealed that a drop in the survivorship (lx) for the first 3rd days. It again started decline on 4th to 18th day. A longpause where no survivorship reduction was recorded between 19th to 30th day. Thereafter, a long pause where no survivorship reduction was recorded between 32nd to 36th day. It again started decline on 37th day. In difference of survivorship, mortality curve followed an irregular pattern with few high and negative peaks. The highest mortality (30) was recorded on 7th day, followed by 29 on 5th day, 26 on 4th and 8th day, 25 on 6th day, 18 on 3rd day, 15 on 12th and 67th day, 13 on 7th, 31st and 61st day, 11 on 10th day and 10 on 9th and 55th day, respectively. The lowest mortality of 2 occurred on starting day (at evening) and 71st day, followed by 3 death were observed on 14th, 17th and 18th day, 4 death were observed on 15th day, 5 death were observed on 16th, 37th and 49th day and 7 death were observed on 13th and 43rd day, respectively. No mortality was point out in rest remaining days.
Pages: 792-795  |  268 Views  60 Downloads
How to cite this article:
Vinod Kumar, Rajendra Singh, Ankur Prakash Verma, Pankaj Batham, Ravi Shankar, Sushant Kumar and Reetesh Pratap Singh. Age specific life-table of Bactrocera dorsalis (Hendel) under room temperature. The Pharma Innovation Journal. 2022; 11(1S): 792-795.

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