Abstract
Studies were conducted to determine if any adverse effects ensued when larvae of Heliothis virescens (F.) survived various feeding periods on cotton treated with Bacillus thuringiensis Berliner. Some of the 2nd instars that were fed B. thuringiensis -treated terminals for 6, 18, or 30 h and then transferred to an untreated diet survived. The ability of larvae to recover decreased with increases in dosage rate or exposure time. After feeding periods of 18 or 30 h, duration of the larval stage was significantly increased. Effects on pupae were similar. No effects on adult longevity, fecundity, egg viability, or F1 larval survival were detected.
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Claims 5
Claim · model-written summary
Some second instar tobacco budworms survived feeding on treated cotton terminals for 6, 18 or 30 hours and transfer to untreated diet.
- Taxon
- cotton
Gossypium hirsutume1 - Interactor
- Heliothis virescens
Heliothis virescense1pest - Second interactor
- Bacillus thuringiensis BerlinerBacillus thuringiensis serovar berlinere1biocontrol_agent
- Outcome
- survivede0
- Qualifier
- 6, 18, or 30 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some of the 2nd instars that were fed B. thuringiensis -treated terminals for 6, 18, or 30 h and then transferred to an untreated diet survived.”
e1“larvae of Heliothis virescens (F.) survived various feeding periods on cotton treated with Bacillus thuringiensis Berliner.”
Claim · model-written summary
Larval recovery decreased with higher bacterial dose or longer exposure.
- Taxon
- cottonGossypium hirsutume1
- Interactor
- Heliothis virescensHeliothis virescense1pest
- Second interactor
- Bacillus thuringiensis BerlinerBacillus thuringiensis serovar berlinere1biocontrol_agent
- Outcome
- ability of larvae to recovere0
- Direction
- decreasede0
- Qualifier
- increases in dosage rate or exposure timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ability of larvae to recover decreased with increases in dosage rate or exposure time.”
e1“larvae of Heliothis virescens (F.) survived various feeding periods on cotton treated with Bacillus thuringiensis Berliner.”
Claim · model-written summary
Feeding on treated cotton for 18 or 30 hours significantly lengthened the larval stage.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- cotton treated with Bacillus thuringiensis Berlinere1
- Interactor
- Heliothis virescensHeliothis virescense1pest
- Second interactor
- Bacillus thuringiensis BerlinerBacillus thuringiensis serovar berlinere1biocontrol_agent
- Outcome
- duration of the larval stagee0
- Direction
- increasede0
- Qualifier
- 18 or 30 he0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After feeding periods of 18 or 30 h, duration of the larval stage was significantly increased.”
e1“larvae of Heliothis virescens (F.) survived various feeding periods on cotton treated with Bacillus thuringiensis Berliner.”
Claim · model-written summary
Pupae had similar effects after larval feeding on treated cotton.
- Taxon
- cottonGossypium hirsutume1
- Interactor
- Heliothis virescensHeliothis virescense1pest
- Outcome
- Effects on pupae were similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effects on pupae were similar.”
e1“larvae of Heliothis virescens (F.) survived various feeding periods on cotton treated with Bacillus thuringiensis Berliner.”
Claim · model-written summary
No effect was detected on adult longevity, fecundity, egg viability or F1 larval survival.
- Taxon
- cottonGossypium hirsutume1
- Interactor
- Heliothis virescensHeliothis virescense1pest
- Outcome
- No effects on adult longevity, fecundity, egg viability, or F1 larval survival were detectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No effects on adult longevity, fecundity, egg viability, or F1 larval survival were detected.”
e1“larvae of Heliothis virescens (F.) survived various feeding periods on cotton treated with Bacillus thuringiensis Berliner.”
The same questions in other papers
Bacillus thuringiensis · Heliothis virescens · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.