Abstract
Abstract Brachycaudus divaricatae Shaposhnikov has spread in many European countries over the last decades, where it causes intensive damage to Prunus cerasifera . Forty P. cerasifera trees were monitored in 2013 at Dārziņi, on the outskirts of Riga city (Latvia), to obtain data on seasonal dynamics of an exotic aphid species, B. divaricatae. Brachycaudus divaricatae was predominant on its only known host plant species, P. cerasifera . Other aphid species were found on monitored trees: Brachycaudus sp., Hyalopterus pruni (Geoffroy) and Rhopalosiphum nymphaeae (L.). The target species, B. divaricatae was the most abundant, followed by H. pruni , but only B. divaricatae reached the highest infestation level. The latest date of registered B. divaricatae colonies was 31 October 2013. Many predatory arthropods belonging to Acari, Araneae, Coleoptera, Diptera, Hymenoptera, and Neuroptera were registered in B. divaricatae colonies. The most abundant predators were dipteran larvae from the families Cecidomyiidae and Syrphidae. Predatory dipterans most abundant were only at the beginning of the season (June). Later in the season, the number of spiders increased in aphid colonies, and of 365 spiders, 43.8% were members of the Linyphiidae family. Five ant species were caught in B. divaricatae colonies, and Formica cinerea Mayr was the most abundant.
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Claims 9
Claim · model-written summary
Brachycaudus divaricatae was predominant on P. cerasifera.
- Taxon
- P. cerasifera
Prunus cerasiferae0 - Interactor
- Brachycaudus divaricataeBrachycaudus divaricataee0pest
- Outcome
- Brachycaudus divaricatae was predominante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brachycaudus divaricatae was predominant on its only known host plant species, P. cerasifera .”
Claim · model-written summary
Brachycaudus sp., Hyalopterus pruni and Rhopalosiphum nymphaeae also occurred on the trees.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Interactor
- Brachycaudus sp.
Brachycauduse0pest - Outcome
- Other aphid species were found on monitored treese0
- Qualifier
- Hyalopterus pruni (Geoffroy) and Rhopalosiphum nymphaeae (L.)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“Other aphid species were found on monitored trees: Brachycaudus sp., Hyalopterus pruni (Geoffroy) and Rhopalosiphum nymphaeae (L.).”
Claim · model-written summary
B. divaricatae was most abundant, followed by H. pruni, and alone reached the highest infestation level.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Interactor
- B. divaricataeBrachycaudus divaricataee0pest
- Outcome
- infestation levele0
- Direction
- higheste0
- Comparator
- H. prunie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“The target species, B. divaricatae was the most abundant, followed by H. pruni , but only B. divaricatae reached the highest infestation level.”
Claim · model-written summary
B. divaricatae colonies were recorded as late as 31 October 2013.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Interactor
- B. divaricataeBrachycaudus divaricataee0pest
- Outcome
- latest date of registered B. divaricatae coloniese0
- Value
- 31 October 2013e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“The latest date of registered B. divaricatae colonies was 31 October 2013.”
Claim · model-written summary
Predatory arthropods from six orders occurred in aphid colonies.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Interactor
- B. divaricataeBrachycaudus divaricataee0pest
- Outcome
- predatory arthropods belonging to Acari, Araneae, Coleoptera, Diptera, Hymenoptera, and Neuroptera were registerede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“Many predatory arthropods belonging to Acari, Araneae, Coleoptera, Diptera, Hymenoptera, and Neuroptera were registered in B. divaricatae colonies.”
Claim · model-written summary
Cecidomyiidae and Syrphidae larvae were the most abundant predators.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Interactor
- CecidomyiidaeCecidomyiidaee0biocontrol_agent
- Outcome
- most abundant predatorse0
- Direction
- most abundante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“The most abundant predators were dipteran larvae from the families Cecidomyiidae and Syrphidae.”
Claim · model-written summary
Predatory dipterans were most abundant at the start of the season in June.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Outcome
- Predatory dipteranse0
- Direction
- most abundante0
- Qualifier
- beginning of the season (June)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“Predatory dipterans most abundant were only at the beginning of the season (June).”
Claim · model-written summary
Spider numbers increased later in the season; 43.8% of 365 spiders were Linyphiidae.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Interactor
- LinyphiidaeLinyphiidaee0biocontrol_agent
- Outcome
- number of spiderse0
- Direction
- increasede0
- Value
- 43.8%e0
- Qualifier
- 365 spiderse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“Later in the season, the number of spiders increased in aphid colonies, and of 365 spiders, 43.8% were members of the Linyphiidae family.”
Claim · model-written summary
Five ant species occurred in aphid colonies, with Formica cinerea most abundant.
- Taxon
- Prunus CerasiferaPrunus cerasiferat0
- Interactor
- B. divaricataeBrachycaudus divaricataee0pest
- Second interactor
- Formica cinerea Mayr
Formica cinereae0other - Outcome
- Five ant species were caughte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Prunus Cerasifera”
e0“Five ant species were caught in B. divaricatae colonies, and Formica cinerea Mayr was the most abundant.”