Claim · model-written summary
Bracon adults emerged alongside sawfly adults and began oviposition around mid-July.
- Taxon
- Wheat
Triticum aestivumt0 - Interactor
- wheat stem sawfly
)_(37764584531).jpg?width=60)
Cephus cinctuse0pest - Second interactor
- B . cephiBracon cephie0biocontrol_agent
- Outcome
- B . cephi emergede0
Verbatim
e0“Adults of B . cephi emerged at the same time as the adults of their host, the wheat stem sawfly, and started to oviposit about mid-July.”
t0“Wheat”
Title
N. D. Holmes; W. A. Nelson; L. K. Peterson; et al. The Canadian Entomologist 1963. doi:10.4039/ent95113-2
Other claims from this paper (11)
- Observation The second Bracon generation began emerging between August 5 and 15.
- Observation Most Bracon larvae present at harvest came from eggs laid after August 1.
- Observation Most overwintering Bracon occurred in lower internodes of infested wheat stems.
- Observation Most sawflies escaped Bracon parasitism after cutting their wheat stems.
- Association High sawfly density per hollow wheat stem harmed Bracon larvae early in the season.
- Association Sawfly-susceptible wheat was more suitable for parasitism than resistant wheat.
- Association Longer survival of sawfly larvae in wheat and barley hosts led to higher parasitism.
- Association Parasitism rose when sawfly larvae cut host stems late enough for second-generation Bracon establishment.
- Association Parasitism declined when sawflies cut stems too early for second-generation Bracon.
- Association Early ripening in two consecutive years produced low parasitism.
- Association Moderate to high parasitism appeared to require late crop ripening in at least one of two years.
Triticum