Studies on rearing Trichogramma dendrolimi Matsumura in vitro.

摘要: In recent years the utilization of trichogrammatid wasps for suppressing agricultural and forestrial insect pests has been increasing in its scale also pest range. practice eggs oak silkworm Antheraea pernyi Eri Philosamia ricini are used as factitious hosts multiplication, adult liberated into fields. But to supply enough quantities becomes a difficult problem when egg parasites very large scale. Therefore we study some artificial media culturing success obtained by using hanging drop method. Artificial nutritional originated from hen's or plus hydrolysates casein nucleic acids were applied. The lengths developing periods immature stages similar those intact hosts. still showed defects because growth individuals stopped at larval prepupal stages. Our results suggest that aside factors physical environment so provided is great importance.