Abstract
Abstract We investigated the ability of entomopathogenic nematodes to infect diamondback moth (DBM), Plutella xylostella (L.) (Lepidoptera: Plutellidae) on a leaf surface. In a leaf disk assay, mortality of late stage DBM larvae ranged from <7% caused by Steinernema kushidai Mamiya to >95% caused by S. carpocapsae (Weiser) All strain. LC 50 values for S. carpocapsae, S. riobravis Cabanillas, Poinar & Raulston, and Heterorhabditis bacteriophora Poinar NC1 strain were 14.6, 15.4, and 65.4 nematodes/larva, respectively. S. carpocapsae, S. riobravis , and H. bacteriophora caused 29%, 33%, and 14% mortality of DBM pupae, respectively. DBM mortality caused by S. carpocapsae on radish declined at low (<76%) to moderate (76–90%) RH, because nematode survival and infectivity declined at low (76%) to moderate (76–90%) RH. However, DBM mortality caused by S. riobravis did not decline with RH. S. riobravis survival declined with RH, but infectivity did not. Overall, nematode survival and infectivity to DBM larvae were lower for S. riobravis than for S. carpocapsae. In addition, DBM mortality was higher on radish plants (pubescent leaves) than on cabbage plants (glaborous leaves).
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
In a leaf disk assay, Steinernema kushidai caused less than 7% mortality of late stage moth larvae.
- Taxon
- radish
Raphanus sativuse1 - Interactor
- DBMe0pest
- Second interactor
- Steinernema kushidaiSteinernema kushidaie0biocontrol_agent
- Outcome
- mortality of late stage DBM larvaee0
- Value
- <7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mortality of late stage DBM larvae ranged from <7% caused by Steinernema kushidai Mamiya to >95% caused by S. carpocapsae (Weiser) All strain.”
e1“DBM mortality caused by S. carpocapsae on radish declined at low (<76%) to moderate (76–90%) RH”
Claim · model-written summary
S. carpocapsae caused over 95% mortality of late stage moth larvae.
- Taxon
- radishRaphanus sativuse1
- Interactor
- DBMe0pest
- Second interactor
- S. carpocapsae
Steinernema carpocapsaee0biocontrol_agent
- Outcome
- mortality of late stage DBM larvaee0
- Value
- >95%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mortality of late stage DBM larvae ranged from <7% caused by Steinernema kushidai Mamiya to >95% caused by S. carpocapsae (Weiser) All strain.”
e1“DBM mortality caused by S. carpocapsae on radish declined at low (<76%) to moderate (76–90%) RH”
Claim · model-written summary
S. carpocapsae had an LC50 of 14.6 nematodes per larva.
- Interactor
- S. carpocapsae
- Outcome
- LC 50 valuese0
- Value
- 14.6e0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LC 50 values for S. carpocapsae, S. riobravis Cabanillas, Poinar & Raulston, and Heterorhabditis bacteriophora Poinar NC1 strain were 14.6, 15.4, and 65.4 nematodes/larva, respectively.”
Claim · model-written summary
S. riobravis had an LC50 of 15.4 nematodes per larva.
Not reportedTaxon
Verbatim
e0“LC 50 values for S. carpocapsae, S. riobravis Cabanillas, Poinar & Raulston, and Heterorhabditis bacteriophora Poinar NC1 strain were 14.6, 15.4, and 65.4 nematodes/larva, respectively.”
Claim · model-written summary
H. bacteriophora had an LC50 of 65.4 nematodes per larva.
- Interactor
- Heterorhabditis bacteriophora
_Poinar%2C_1975.jpg?width=60)
Heterorhabditis bacteriophorae0biocontrol_agent - Outcome
- LC 50 valuese0
- Value
- 65.4 nematodes/larvae0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poinar%2C_1975.jpg?width=500)
Verbatim
e0“LC 50 values for S. carpocapsae, S. riobravis Cabanillas, Poinar & Raulston, and Heterorhabditis bacteriophora Poinar NC1 strain were 14.6, 15.4, and 65.4 nematodes/larva, respectively.”
Claim · model-written summary
S. carpocapsae caused 29% mortality of moth pupae.
- Interactor
- DBMe0pest
- Second interactor
- S. carpocapsae
- Outcome
- mortality of DBM pupaee0
- Value
- 29%e0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S. carpocapsae, S. riobravis , and H. bacteriophora caused 29%, 33%, and 14% mortality of DBM pupae, respectively.”
Claim · model-written summary
S. riobravis caused 33% mortality of moth pupae.
- Interactor
- DBMe0pest
- Second interactor
- S. riobravise0biocontrol_agent
- Outcome
- mortality of DBM pupaee0
- Value
- 33%e0
Not reportedTaxon
Verbatim
e0“S. carpocapsae, S. riobravis , and H. bacteriophora caused 29%, 33%, and 14% mortality of DBM pupae, respectively.”
Claim · model-written summary
H. bacteriophora caused 14% mortality of moth pupae.
- Interactor
- DBMe0pest
- Second interactor
- H. bacteriophoraHeterorhabditis bacteriophorae0biocontrol_agent
- Outcome
- mortality of DBM pupaee0
- Value
- 14%e0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S. carpocapsae, S. riobravis , and H. bacteriophora caused 29%, 33%, and 14% mortality of DBM pupae, respectively.”
Claim · model-written summary
Moth mortality caused by S. carpocapsae on radish declined at low to moderate humidity.
- Taxon
- radishRaphanus sativuse0
- Treatment
- low (<76%) to moderate (76–90%) RHe0
- Interactor
- DBMe0pest
- Second interactor
- S. carpocapsae
- Outcome
- DBM mortalitye0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DBM mortality caused by S. carpocapsae on radish declined at low (<76%) to moderate (76–90%) RH”
Claim · model-written summary
Moth mortality caused by S. riobravis did not decline with humidity.
- Taxon
- radishRaphanus sativuse1
- Treatment
- RHe0
- Interactor
- DBMe0pest
- Second interactor
- S. riobravise0biocontrol_agent
- Outcome
- DBM mortalitye0
- Direction
- did not declinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DBM mortality caused by S. riobravis did not decline with RH.”
e1“DBM mortality caused by S. carpocapsae on radish declined at low (<76%) to moderate (76–90%) RH”
Claim · model-written summary
S. riobravis survival declined with humidity, while infectivity did not.
Not reportedTaxon
Verbatim
e0“S. riobravis survival declined with RH, but infectivity did not.”
Claim · model-written summary
Survival and infectivity to moth larvae were lower for S. riobravis than S. carpocapsae.
- Interactor
- DBMe0pest
- Second interactor
- S. riobravise0biocontrol_agent
- Outcome
- nematode survival and infectivitye0
- Direction
- lowere0
- Comparator
- S. carpocapsaee0
Not reportedTaxon
Verbatim
e0“nematode survival and infectivity to DBM larvae were lower for S. riobravis than for S. carpocapsae.”
Claim · model-written summary
Moth mortality was higher on radish than cabbage plants.
- Taxon
- radishRaphanus sativuse0
- Interactor
- DBMe0pest
- Outcome
- DBM mortalitye0
- Direction
- highere0
- Comparator
- cabbage plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DBM mortality was higher on radish plants (pubescent leaves) than on cabbage plants (glaborous leaves).”