Comparative development, reproduction and life table parameters of three populations of Thrips tabaci (Thysanoptera: Thripidae) on onion and tobacco

نویسنده:
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سال
: 2009
چکیده: An investigation was carried out to study the developmental time, reproduction and life table of

three populations of the onion thrips, Thrips tabaci Lindeman, on onion (Khorasan and Golestan

populations) and also on tobacco (Mazandaran population) in the laboratory at 25°C, 50% RH and 16: 8 h

L: D. The total life cycle from egg to adult of Khorasan, Golestan and Mazandaran populations were

gauged as 15.22, 14.66 and 17.82 days, respectively. However, theses populations showed 30%, 38% and

58% immature mortality, respectively. The females of T. tabaci laid 29.5, 27.7 and 26.3 eggs averagely,

and had a mean longevity of 18.0, 17.78 and 19.07 days in Khorasan Razavi, Golestan and Mazandaran

populations, respectively. The net reproductive rate (R0) was 19.75, 18.48 and 10.84, and the intrinsic rate

of increase (rm) was 0.143, 0.141 and 0.096 in Khorasan Razavi, Golestan and Mazandaran populations,

respectively. Khorasan Razavi and Golestan populations (both reared on onion) had similar

developmental time, mortality and life table parameters, while Mazandaran population (on tobacco)

yielded significantly different values. Based on the differences of development, fecundity and life table

parameters, there might be two distinct populations exploiting onion and tobacco in Iran.
کلیدواژه(گان): Thrips tabaci,population,biology,onion,tobacco
کالکشن :
  • نمایش متادیتا
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