Canadian Forest Service Publications
Reproductive Ecology of Trichogramma). 2016. Martel, V.; Boivin, G. Pages 251-285 in Vinson, S.B.; Greenberg, S.M.; Liu, T.-X.; Rao, A.; Volosciuk, L.F., eds. Biological control of pests using Trichogramma: current status and perspectives. Northwest A&F University Press, Yangling, China.
Issued by: Laurentian Forestry Centre
Catalog ID: 38356
CFS Availability: PDF (request by e-mail)
Reproduction is a key aspect for successful mass rearing and biological control. Although Trichogramma are relatively easy to rear, a good understanding of their reproduction is necessary for more efficient rearing, release and control. In this chapter, we present the known aspects of egg parasitoids' reproduction, focusing on Trichogramma, covering mate search and choice, gamete production and management, oviposition behavior, host exploitation and sex allocation, for both males and females. For each section, we present the available literature and some perspectives on their possible impacts for successful mass rearing and biological control, in addition to identify the knowledge gaps that would need to be addressed.
Plain Language Summary
In this book chapter, the researchers present aspects of the reproduction of parasitoids of insect eggs, focusing on Trichogramma. Topics such as the search for and selection of partners are discussed, as well as the production and management of eggs and spermatozoids, egg-laying behaviour and how hosts are used.
For each topic, the researchers provide the literature available, along with observations about the success of mass breeding of these parasitoids for biological control purposes. Knowledge gaps about these topics are also described.
The parasitoid Trichogramma is widely used around the world for controlling pests of plants such as cotton and sugar cane, as well as forest pests. In Quebec and Canada, it is commercially available and is abundantly used in agriculture. It is being studied in a forestry environment, particularly for controlling the spruce budworm.