2024-03-29T02:22:01Z
https://meral.edu.mm/oai
oai:meral.edu.mm:recid/154
2021-12-13T01:08:49Z
1582963567848:1582969200180
user-yau
Biology of the Cassava Mite, Tetranychus truncatus Ehara (Acari: Tetranychidae)
Aung Myo Win
Htar Htar Naing
Ah Nge Htwe
Ei Han Kyaw
Thi Tar Oo
The duration of developmental stages of Tetranychus truncatus Ehara was studied at four different temperature regimes (20, 25, 30 and 35˚C) on excised mulberry leaves. Longevity and fecundity of fe-male and sex ratio were also observed at 30˚C. Mites completed their development within this tem-perature range. T. truncatus eggs hatched to larvae in the shortest duration of 2.38 ± 0.06 days at 35˚C and the longest duration of 7.65 ± 0.05 days at 20˚C. Development time for completion of the life cycle de-creased significantly with increasing temperature. The longest (16.93 ± 0.11 days) and the shortest (5.34 ± 0.11 days) life cycle were observed at 20˚C and 35˚C respectively. The highest immature mortality was 13.94% at 35˚C followed by 10.35% at 20˚C. A female mite laid 55.07 eggs during its oviposition period of 10.93± 0.29 days at 30˚C. The oviposition rate was 5.13± 0.24 eggs/female/day at 30˚C. The sex ratio of T. truncatus at 30˚C was 1 : 3.12 (male: female).
2018
http://hdl.handle.net/20.500.12678/0000000154
https://meral.edu.mm/records/154