Abstract
Abstract Woolly aphid, Eriosoma lanigerum , is an important pest of apples that infests both the aerial and root parts of the tree. Root colonies are protected from the pesticide sprays applied during the growing season and the climatic effects of winter. Consequently, root colonies are a major source of aerial re‐infestation in the following spring. Imidacloprid, the first of a new group of insecticides from the chloronicotinyl family, is known to provide excellent control of woolly aphid on trees up to 7‐years‐old when applied as a root soil drench. This study compared the effects of a single application of chlorpyrifos, imidacloprid, pirimicarb or vamidothion, applied as a root drench over four growing seasons. A soil wetting agent was added to each chemical to improve soil saturation and penetration. Imidacloprid provided excellent control of woolly aphid on the trees that were 17‐years‐old at the start of the study and continued to do so for four seasons. Pirimicarb appeared to offer some suppression of woolly aphid during the first season but not in subsequent seasons, while chlorpyrifos and vamidothion failed to control woolly aphid in any season. The potential role for imidacloprid in IPM programs is discussed.
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Claims 5
Claim · model-written summary
Imidacloprid controlled woolly aphid on mature apple trees for four seasons.
- Taxon
- apple trees
Malus domesticat0 - Treatment
- Imidaclopride0
- Interactor
- Eriosoma lanigerum
Eriosoma lanigerume1pest - Outcome
- control of woolly aphide0
- Direction
- excellent controle0
- Qualifier
- four seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e0“Imidacloprid provided excellent control of woolly aphid on the trees that were 17‐years‐old at the start of the study and continued to do so for four seasons.”
e1“Eriosoma lanigerum”
Claim · model-written summary
Pirimicarb suppressed woolly aphid during the first season.
- Taxon
- apple treesMalus domesticat0
- Treatment
- Pirimicarbe0
- Interactor
- Eriosoma lanigerumEriosoma lanigerume1pest
- Outcome
- suppression of woolly aphide0
- Direction
- suppressione0
- Qualifier
- during the first seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e0“Pirimicarb appeared to offer some suppression of woolly aphid during the first season but not in subsequent seasons”
e1“Eriosoma lanigerum”
Claim · model-written summary
Pirimicarb did not suppress woolly aphid in later seasons.
- Taxon
- apple treesMalus domesticat0
- Treatment
- Pirimicarbe0
- Interactor
- Eriosoma lanigerumEriosoma lanigerume1pest
- Outcome
- suppression of woolly aphide0
- Direction
- not in subsequent seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e0“Pirimicarb appeared to offer some suppression of woolly aphid during the first season but not in subsequent seasons”
e1“Eriosoma lanigerum”
Claim · model-written summary
chlorpyrifos failed to control woolly aphid in every season.
- Taxon
- apple treesMalus domesticat0
- Treatment
- chlorpyrifose0
- Interactor
- Eriosoma lanigerumEriosoma lanigerume1pest
- Outcome
- control woolly aphide0
- Direction
- failede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e0“chlorpyrifos and vamidothion failed to control woolly aphid in any season.”
e1“Eriosoma lanigerum”
Claim · model-written summary
vamidothion failed to control woolly aphid in every season.
- Taxon
- apple treesMalus domesticat0
- Treatment
- vamidothione0
- Interactor
- Eriosoma lanigerumEriosoma lanigerume1pest
- Outcome
- control woolly aphide0
- Direction
- failede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“apple trees”
e0“chlorpyrifos and vamidothion failed to control woolly aphid in any season.”
e1“Eriosoma lanigerum”
The same questions in other papers
vamidothion · Eriosoma lanigerum · Malus domestica (apple)Positive and negative results
1 in the opposite direction
- positive
imidacloprid · Eriosoma lanigerum · Malus domestica (apple)Positive and negative results
1 in the opposite direction
- negative
chlorpyrifos · Eriosoma lanigerum · Malus domestica (apple)Positive and negative results
3 in the opposite direction
- positive
- 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.