Formosan Entomologist (2003) 23, 275-290

Mei-Hwa Kuo and Yu-Hui Kuo (2003)
[Effects of host plant transplantation on the population of the root aphid, Tetraneura nigriabdominalis (Sasaki) (Homoptera: Pemphigidae) in the laboratory]
Formosan Entomologist 23 (4), 275-290
Abstract: Host alterations of the root aphid, Tetraneura nigriabdominalis (Sasaki), among four host plants (Eleusine indica, Oryza sativa, Zea mays, and Sorghum bicolor) were studied by comparing adult longevity, fecundity, and population parameters in the laboratory. Transplanted host plants were evaluated at 30± 1-2°C (70-80% RH; 12L: 12D) for continuous observations on six generations. Survivorship for nymphs growing to adults of T. nigriabdominalis in the first generation when transferred from E. indica to O. sativa, Z. mays, or S. bicolor was lower than 50%, and that of aphids transferred from O. sativa to E. indica was 52%. Nymph mortality decreased over three generations after host transfer. Survivorship of adult continually increased with time up to six generations to 78~92%. Adult fecundity, the intrinsic rate of increase, the finite rate of increase, and the net reproductive rate of populations continually increased to six generations after transplantation. However, there were no significant differences after the populations had bred for three or four generations on the four host plants.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Chinese)
Database assignments for author(s): Mei Hwa Kuo

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetraneura nigriabdominalis	Maize/corn (Zea mays)	Taiwan
	Tetraneura nigriabdominalis	Sorghum (crop)	Taiwan
	Tetraneura nigriabdominalis	Rice (Oryza)	Taiwan
	Tetraneura nigriabdominalis	Eleusine (crop)	Taiwan