Abstract
The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae) for effects on longevity, possible repellency, and flight ability. The insecticide greatly reduced feeding of both insects at doses where mortality was not significantly different from untreated control insects. Imidacloprid did not affect the ratio of insects on the plant to that of off the plant, and G. atropunctata were found on the leaves rather than on the stems, whereas H. vitripennis was more frequently found on the stems. However, insecticide treatment reduced the rate of both G. atropunctata and H. vitripennis present on the stems. Sublethal doses did not reduce flight ability markedly and did not measurably reduce transmission of X. fastidiosa to grape beyond reductions in transmission ascribable to vector mortality.
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Claims 10
Claim · model-written summary
Imidacloprid greatly reduced feeding of H. vitripennis.
- Taxon
- grapee1
- Treatment
- insecticidee0
- Interactor
- Homalodisca vitripennis
Homalodisca vitripennise1pest - Outcome
- feeding of both insectse0
- Direction
- reducede0
- Comparator
- untreated control insectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticide greatly reduced feeding of both insects at doses where mortality was not significantly different from untreated control insects.”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
Imidacloprid greatly reduced feeding of G. atropunctata.
- Taxon
- grapee1
- Treatment
- insecticidee0
- Interactor
- Graphocephala atropunctata
Graphocephala atropunctatae1pest - Outcome
- feeding of both insectse0
- Direction
- reducede0
- Comparator
- untreated control insectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The insecticide greatly reduced feeding of both insects at doses where mortality was not significantly different from untreated control insects.”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
Sharpshooter mortality under these doses did not differ significantly from controls.
Verbatim
e0“mortality was not significantly different from untreated control insects.”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
Imidacloprid did not alter the insect on-plant to off-plant ratio.
- Taxon
- grapee1
- Treatment
- Imidaclopride0
- Outcome
- ratio of insects on the plant to that of off the plante0
- Direction
- did not affecte0
Not reportedComparator
Verbatim
e0“Imidacloprid did not affect the ratio of insects on the plant to that of off the plant”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
G. atropunctata occupied leaves rather than stems.
- Taxon
- grapee1
- Interactor
- G. atropunctataGraphocephala atropunctatae0peste1
- Outcome
- G. atropunctata were found on the leaves rather than on the stemse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. atropunctata were found on the leaves rather than on the stems”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
H. vitripennis was found more frequently on stems.
- Taxon
- grapee1
- Interactor
- H. vitripennisHomalodisca vitripennise0peste1
- Outcome
- H. vitripennis was more frequently found on the stemse0
- Direction
- more frequentlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“H. vitripennis was more frequently found on the stems.”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
Insecticide reduced G. atropunctata presence on stems.
- Taxon
- grapee1
- Treatment
- insecticide treatmente0
- Interactor
- G. atropunctataGraphocephala atropunctatae0peste1
- Outcome
- rate of both G. atropunctata and H. vitripennis present on the stemse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“insecticide treatment reduced the rate of both G. atropunctata and H. vitripennis present on the stems.”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
Insecticide reduced H. vitripennis presence on stems.
- Taxon
- grapee1
- Treatment
- insecticide treatmente0
- Interactor
- H. vitripennisHomalodisca vitripennise0peste1
- Outcome
- rate of both G. atropunctata and H. vitripennis present on the stemse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“insecticide treatment reduced the rate of both G. atropunctata and H. vitripennis present on the stems.”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
Sublethal imidacloprid did not markedly impair flight ability.
Not reportedComparator
Verbatim
e0“Sublethal doses did not reduce flight ability markedly”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
Claim · model-written summary
Sublethal imidacloprid did not measurably lower X. fastidiosa transmission beyond vector mortality effects.
- Taxon
- grapee1
- Treatment
- Sublethal dosese0
- Interactor
- X. fastidiosa
Xylella fastidiosae0pathogene1 - Outcome
- transmission of X. fastidiosa to grapee0
- Direction
- did not measurably reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sublethal doses did not reduce flight ability markedly and did not measurably reduce transmission of X. fastidiosa to grape beyond reductions in transmission ascribable to vector mortality.”
t0“sharpshooter vectors of Xylella fastidiosa”
e1“The neonicotinoid insecticide imidacloprid, applied in soil to grape seedlings in a series of doses, was tested on two major vectors of the bacterium Xylella fastidiosa in California: Homalodisca vitripennis (glassy-winged sharpshooter (GWSS), Hemiptera: Cicadellidae) and Graphocephala atropunctata (blue-green sharpshooter (BGSS), Hemiptera, Cicadellidae)”
The same questions in other papers
imidacloprid · pest · VitisPositive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.