A newly established cell line was obtained from the culture of embryonic cells of the potato tuher moth Phthorinma operculella in low temperature conditions (19" C) using modified Grace's medium supplemented with 10% fetal bovine serum. The population doubling time was about 80 h when cells wele cultivated at 19" C and 38 II at 27" C. The cell line had a relatively homogeneous population consis...

The lab persistence of Phthorimaea opercullela granulovirus (PhopGV) with and without lignin for egg bioassay with different five virus concentrations (lab experiment60, 10, 1.67, 0.28 and 0.046 LE/l 200.015432 LE/l ) to determine the inactivation curve under artificial UVlight, assess the effect and verify the protective capacity of lignin with PhopGV for virus preparations suspensions of raw ...

Polyembryony is a unique mode of development in which multiple genetically identical embryos develop from a single egg. In some polyembryonic species a proportion of the embryos develop into soldier larvae, which attack competitors in the host. We studied the development of the polyembryonic wasp Copidosoma koehleri in its host Phthorimaea opercullela. We dissected hosts parasitized by either v...

J. Econ. Enlomol. 74: 30}-308 (1981) Larvae and adults of Phthorimaea operculella (Zeller) in potato foliage were effectively controlled by commercial applications of azinphosmethyl and a combination of methomyl and methamidophos, but eggs and pupae were not significantly affected. Azinphosmethyl, methomyl, and methamidophos provided adequate control of foliar larval populations, but larval par...

Invasive tomato leaf miner, Phthorimaea absoluta causes serious damage and yield loss in production open-field protected cultivation. Use of chemical pesticides is uneconomical adversely affects humans the environment. Host-plant resistance an effective, economical eco-friendly alternative to pesticides. In this study, four wild accessions from World Vegetable Center along with one susceptible ...