Abstract
Air‐borne conidia of apple powdery mildew, trapped for two seasons, showed a marked seasonal periodicity. Spore concentration rose rapidly in spring (October) to reach a peak in early summer (November) then declined until the end of February. No evidence was found for a weekly periodicity of spore release. Fungicidal spray experiments in a third season demonstrated the importance of close‐interval spray application during spring (October—November), the period during which apple trees show active extension growth. Such spraying was important both in reducing current season build‐up of infection and in preventing the formation of overwintering sources of primary infection in buds.
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Claims 5
Claim · model-written summary
Airborne apple powdery mildew conidia showed marked seasonal periodicity.
- Taxon
- apple
Malus domesticae0 - Interactor
- Podosphaera leucotricha
Podosphaera leucotrichat0pathogen - Outcome
- Air‐borne conidia of apple powdery mildewe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Air‐borne conidia of apple powdery mildew, trapped for two seasons, showed a marked seasonal periodicity.”
t0“apple powdery mildew, Podosphaera leucotricha”
Claim · model-written summary
Spore concentration rose in October, peaked in November, and declined through February.
- Taxon
- appleMalus domesticat0
- Interactor
- Podosphaera leucotrichaPodosphaera leucotrichat0pathogen
- Outcome
- Spore concentratione0
- Direction
- rose rapidlye0
- Qualifier
- spring (October)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spore concentration rose rapidly in spring (October) to reach a peak in early summer (November) then declined until the end of February.”
t0“apple powdery mildew, Podosphaera leucotricha”
Claim · model-written summary
No weekly periodicity in spore release was detected.
- Taxon
- appleMalus domesticat0
- Interactor
- Podosphaera leucotrichaPodosphaera leucotrichat0pathogen
- Outcome
- weekly periodicity of spore releasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No evidence was found for a weekly periodicity of spore release.”
t0“apple powdery mildew, Podosphaera leucotricha”
Claim · model-written summary
Close interval fungicide sprays in spring reduced current-season infection buildup.
- Taxon
- appleMalus domesticat0
- Treatment
- close‐interval spray applicationt1
- Interactor
- Podosphaera leucotrichaPodosphaera leucotrichat0pathogen
- Outcome
- current season build‐up of infectione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Such spraying was important both in reducing current season build‐up of infection”
t0“apple powdery mildew, Podosphaera leucotricha”
t1“close‐interval spray application”
Claim · model-written summary
Close interval fungicide sprays in spring prevented overwintering primary infection in buds.
- Taxon
- appleMalus domesticat0
- Treatment
- close‐interval spray applicationt1
- Interactor
- Podosphaera leucotrichaPodosphaera leucotrichat0pathogen
- Outcome
- overwintering sources of primary infection in budse0
- Direction
- preventinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in preventing the formation of overwintering sources of primary infection in buds.”
t0“apple powdery mildew, Podosphaera leucotricha”
t1“close‐interval spray application”
The same questions in other papers
application · Podosphaera leucotricha · Malus domestica (apple)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.