Todd, we just using Trichogramma evanecens against WCM and haven´t experimented with other Trichogramma wasps in museums yet. On the cards we use from the supplier, there are also unhatched moth eggs, but never with problems starting a moth infestation. Trichogramma evanecens wasps are also used against stored food pests moths, like Plodia i. or Ephestia spp.
Best, Stephan Stephan Biebl IPM and Pest Control Consultant Germany Von: [email protected] <[email protected]> Im Auftrag von Todd Holmberg Gesendet: Mittwoch, 9. Januar 2019 23:32 An: [email protected] Betreff: [pestlist] Trichogramma Wasps Hello Group, We recently experimented with Trichogramma wasps (minutum) to see if they would have an effect on webbing cloths moths in an area where there's been some activity in the past. Not enough time has passed to really get a sense of if there has been much of an effect yet. A question came up that I wanted to run past the entomologists in this group. Apparently (according to the supplier) the "host eggs" on the Trichogramma tabs are "Ephestia". Someone asked whether or not there could be a risk of starting another infestation of Ephestia by bringing 1,000's of those eggs into an environment (thinking some of the eggs on the tab contained Ephestia, not Trichogramma). We decided to freeze the egg tabs after having them out for a few weeks to ensure that any remaining unhatched eggs are now dead. I did notice a few trichogrammas in a sticky trap that was next to one of the egg tabs. Seeing one next to a webbing moth really helps give you a sense of how tiny these things are. If anyone has any thoughts about Ephestia moths, or the general "host eggs on a trichogramma tab creating an infestation issue", I would be interested in hearing it. Also any other notable Trichogramma related experiences you may have had would be interesting to hear about. Thanks, Todd -- You received this message because you are subscribed to the Google Groups "Museumpests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at https://groups.google.com/group/pestlist. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/CAMxAh%2BidaSi2q9M6pCGGv8Pjbb-0cU2VV1pL00zNqCi3%2B1UfTw%40mail.gmail.com<https://groups.google.com/d/msgid/pestlist/CAMxAh%2BidaSi2q9M6pCGGv8Pjbb-0cU2VV1pL00zNqCi3%2B1UfTw%40mail.gmail.com?utm_medium=email&utm_source=footer>. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Museumpests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/pestlist. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/HE1P18901MB01723D5E250174638027D482CA840%40HE1P18901MB0172.EURP189.PROD.OUTLOOK.COM. For more options, visit https://groups.google.com/d/optout.
