Host-parasitoid interaction of Aphis gossypii Glover Homoptera: Aphididae) and Aphelinus mali Haldemanymenoptera: Aphelinidae)

• Main Authors: Perng, Jen-jiun, 彭仁君
• Other Authors: Liu, Yu-chang
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/35466585716544554208

博士 === 國立中興大學 === 昆蟲學系 === 82 === The systematic analyses and studies of host-parasitoid inter -actions of ~u2;Aphis~u1; ~u2;gossypii~u1; andAphelinus~u1; ~u2; mali~u1; were under- taken in this study by using the concepts and methods of Systems analysis. A series of experiments were conducted to determine the effect of parasitization by parasitoid ~u2;A.~u1;u2;mali~u1; on the demographic processes for host popu -lation of ~u2;A.~u1;u2; gossypii~u1;. The development and re- production of aphids after being parasitizedin different age intervals were compared with unpara- sitized aphids. The parasitizing effect of ~u2;A. ~u1;u2;mali~u1; become distinct at day 3 after parasitization. The effects of parasiti- zation on the development and reproduction of host aphids were related to the aphid age attacked: when the first and 2nd day old young nymphs had been parasitized by the parasitoid, the parasitized- aphids were killed by mummification before reached adult stage, however, the nymphs could develop to adult stage and to produce offsprings when had being parasitized in the older 3rd and 4th day old ages.