Life history parameters of <Emphasis Type="Italic">Thrips tabaci</Emphasis> (Thysanoptera: Thripidae) on six commercial cultivars of canola |
| |
Authors: | Seyed Ali Asghar Fathi Fatemeh Gholami Gadir Nouri-Ganbalani Abdolamir Mohiseni |
| |
Institution: | (1) Department of Plant Protection, University of Mohaghegh Ardabili, Ardabil, Iran;(2) Borujerd Agricultural Research Station, Borujerd, Lorestan, Iran |
| |
Abstract: | The onion thrips, Thrips tabaci Lind. (Thysanoptera: Thripidae), is an important pest of the canola crop, Brassica napus L., in the Ardabil region. In this study, life history parameters of T. tabaci were investigated on six canola cultivars, namely: Talayh, Zarfam, RGS003, Opera, Option500, and Hayola401. Experiments were
performed in a climate chamber set at 25 ± 1°C and 55 ± 5% RH under 16L:8D. The results indicated that the development time
of immature stages was significantly longer on RGS003 than on Opera, Hyola401, Zarfam, Option500, and Talayh. The onion thrips
reared on RGS003 had the lowest number of eggs laid per female (15.5) and the lowest survival rate (40%) among the tested
cultivars. The lowest intrinsic rate of natural increase (r
m) and population growth rate (λ) were observed on RGS003, and were the highest on Zarfam. The generation time (T) was shortest on Zarfam (21.5 days) and longest on RGS003 (26.5 days). Similarly, the doubling time (DT) was shortest on
Zarfam (4.5 days) and longest on RGS003 (8.1 days). Considering the significant effect of the host plant on the life history
parameters of onion thrips, it was concluded that RGS003 is the least suitable cultivar among the other tested canola cultivars
for integrated management of onion thrips in canola fields. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|