ZEITSCHRIFT FUR PFLANZENKRANKHEITEN UND PFLANZENSCHUTZ-JOURNAL OF PLANT DISEASES AND PROTECTION, vol.110, no.2, pp.203-208, 2003 (SCI-Expanded)
The development, Survivorship, and reproduction of rose aphid, Macrosiphum rosae (L.), were evaluated at four constant temperatures (17.5, 20, 22.5, and 25 degreesC). The developmental periods of immature stages ranged from 10.7 d at 17.5 degreesC to 7.95 d at 25 degreesC. The total percentages of survivorship of immature stages varied from 52.06 and 86% within the temperature range of 17.5-25 degreesC. However, the total percentages of survivorships were reduced to 52.06 and 54% at 17.5 and 25, respectively. The average longevity of adult females was 13.92, 10.74, 18.55, and 8.65 d at 17.5, 20, 22.5, and 25 degreesC) respectively. The average progeny per female was 19.75, 13.28, 34.92, and 7.23 at 17.5, 20, 22.5, and 25 degreesC, respectively. The largest r(m) (0.170865) occurred at 22.5 degreesC. The optimal temperature for M rosae population growth was 22.5 degreesC.