Abstract
A field cage evaluation of the parasitoid Eretmocerus nr. californicus as a biological control agent of Bemisia argentifolii Bellows & Perring was conducted in Southern California cotton during June through August of 1992. Percentage of parasitism was highest in early August at 61% in the high parasitoid release treatment and was significantly higher than both the low parasitoid release and control treatments. The density of B. argentifolii pupae on leaves in the high parasitoid release treatment was approximately one-fifth of the other treatments. Seed cotton yield was significantly higher in the high parasitoid release cage in comparison with those of the low parasitoid release and control cages. We conclude that E. nr. californicus may be a useful control agent in an augmentative release strategy against whitefly on cotton and is deserving of large-scale, open field studies.
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Claims 4
Claim · model-written summary
High parasitoid release produced 61% parasitism in early August, significantly above low release and control.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- high parasitoid release treatmente0
- Outcome
- Percentage of parasitisme0
- Direction
- higheste0
- Value
- 61%e0
- Qualifier
- early Auguste0
- Comparator
- low parasitoid release and control treatmentse0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage of parasitism was highest in early August at 61% in the high parasitoid release treatment and was significantly higher than both the low parasitoid release and control treatments.”
t0“Cotton”
Claim · model-written summary
High parasitoid release reduced B. argentifolii pupal density on leaves to about one-fifth of other treatments.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- high parasitoid release treatmente0
- Interactor
- B. argentifolii
Bemisia argentifoliie0pest - Outcome
- density of B. argentifolii pupae on leavese0
- Direction
- lowerinferrede0
- Value
- one-fifthe0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The density of B. argentifolii pupae on leaves in the high parasitoid release treatment was approximately one-fifth of the other treatments.”
t0“Cotton”
Claim · model-written summary
High parasitoid release significantly increased seed cotton yield relative to low release and control.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- high parasitoid release cagee0
- Outcome
- Seed cotton yielde0
- Direction
- highere0
- Comparator
- low parasitoid release and control cagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed cotton yield was significantly higher in the high parasitoid release cage in comparison with those of the low parasitoid release and control cages.”
t0“Cotton”
Claim · model-written summary
The authors suggest E. nr. californicus may be useful for augmentative whitefly control and merits open-field studies.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- whiteflye0pest
- Second interactor
- E. nr. californicuse0biocontrol_agent
- Outcome
- augmentative release strategy against whitefly on cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We conclude that E. nr. californicus may be a useful control agent in an augmentative release strategy against whitefly on cotton and is deserving of large-scale, open field studies.”
The same questions in other papers
biocontrol · yield · Gossypium hirsutum (cotton)Positive and negative results
8 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
6 papers more in this group
See all 10 papers →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.