@misc{Kot_Jan_Experiments_1964, author={Kot, Jan}, editor={Polska Akademia Nauk. Komitet Ekologiczny}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Warszawa}, howpublished={online}, year={1964}, language={eng}, abstract={The experiments presented in this paper are concerned with Trichogramma evanescens Westw., T. cacoeciae March., and T. embryophagum (Htg.) (Hymenoptera, Chalcidnidea, Trichogrammatidae). It was found that 7 generations of T. evanescens and T. cacoeciae and 6 T. embryophagum generations can develop yearly in central Poland. The species most resistant to low temperatures are T. embryophagum and T. evanescens, while T. cacoeciae is the least resistant species. The results of experiments pertaining to the dispersal and activity of Trichogramma in relation to the density of the host population are given. Distinct differences were found between the species as concerns vertical dispersal, the effect of the parasite population density on the offspring of the parasite and host, as well as the degree to which it is polyphagous. The results of experiments in the control of pests through the introduction of laboratory reared Trichogramma are also presented.}, type={Text}, title={Experiments in the biology and ecology of species of the genus Trichogramma Westw. and their use in plant protection}, URL={http://rcin.org.pl/Content/69328/PDF/WA058_86071_P2840-T12-Eko-Pol-A-Nr-15.pdf}, volume={12}, number={15}, journal={Ekologia Polska. Seria A}, publisher={PaƄstwowe Wydawnictwa Naukowe}, keywords={Trichogramma, ecology, biology of species}, }