The growth and development of teratocytes was examined in the Cotesia kariyai-Pseudaletia separata system. Cotesia kariyai embryos released an average of 163 teratocytes at the time of hatching, 3.5 days after oviposition. The cells increased in diameter from 30 to 77 µm until 7 days post-parasitization, after which there was no significant increase in average diameter. However, there was signi...

* The authors would like to thank those whose comments improved the quality of this document. Isolde Birdthistle, Edward De Vos, Ronald Slaby, Joan Vaz Serra Hoffman, Cheryl Vince-Whitman and Debbie Whitcomb from the Educational Development Center of Harvard University made valuable suggestions. Rafael Lozano of the World Health Organization and Carlos Castillo of the Pan American Health Organi...

Attempts to establish Cotesia flavipes Cameron (Hymenoptera: Braconidae) in Louisiana sugarcane fields to control the sugarcane borer, Diatraea saccharalis (F.) (Lepidoptera: Crambidae) have been unsuccessful. Experiments were conducted to investigate the feasibility of using an alternative larval host and host plants to overcome barriers preventing establishment. In addition, we evaluated C. ...

We determined whether plant volatiles help explain why Cotesia chilonis (a parasitoid of the target pest Chilo suppressalis) is less abundant in Bt than in non-Bt rice fields. Olfactometer studies revealed that C. chilonis females responded similarly to undamaged Bt and non-Bt rice plants. Parasitoids preferred rice plants damaged by 3(rd)-instar larvae of C. suppressalis, but did not different...

Odonata is an insect that plays important role in the balance of ecosystem, acting as predators. Most Odonata’s life water form larvae. occupies some specific habitat types waters. This study aims to determine diversity, abundance, and distribution (dragonflies damselflies) upstream area Kalibendo river, Banyuwangi. The research method used River Tracking with 4 points observation which each ha...

Cotesia congregata polydnavirus (CcPDV) is essential for successful parasitism of Manduca sexta larvae by the braconid wasp Cotesia congregata. To determine the molecular mechanisms for the vertical transmission of CcPDV in the wasps, we analysed the different forms of the virus sequences containing the gene encoding the early parasitism-specific protein 1 (EP1). By a detailed molecular analysi...

Parasitoids employ different types of host-related volatile signals for foraging and host-location. Host-related volatile signals can be plant-based, originate from the herbivore host or produced from an interaction between herbivores and their plant host. In order to investigate potential sex- and species-related differences in the antennal response of parasitoids to different host-related vol...