Paper · 1997 · Plant Disease

Summer Pruning as a Method for Reducing Flyspeck Disease on Apple Fruit

Daniel R. Cooley; James W. Gamble; Wesley R. Autio

5
claims
8
verbatim quotes
40
citations
4
research areas
✓
Open access · public-domain

Abstract

Summer pruning of apples, as opposed to the conventional commercial practice of dormant pruning, consistently reduced the incidence of flyspeck on apple fruit by approximately 50% in each of 2 years in trees where no fungicides were applied. In commercial orchard blocks using fungicides, summer pruning also produced a slight but significant decrease in disease severity. There appear to be at least two mechanisms contributing to decreased flyspeck incidence and severity in summer-pruned apple trees. Summer pruning resulted in a small change in the apple canopy microclimate, decreasing the hours of relative humidity >95% in the canopy by 63% and increasing the evaporative potential. Summer pruning also resulted in improved spray deposition in the upper two-thirds of the tree canopy when applications were made with an airblast sprayer.

Abstract from the paper’s OpenAlex record; open copy licensed public-domain. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Summer pruning reduced flyspeck incidence by about 50% versus dormant pruning in unsprayed apple trees.

Treatment
Summer pruninge0
Outcome
incidence of flyspecke0
Direction
reducede0
Value
approximately 50%e0
Comparator
dormant pruninge0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Summer pruning of apples, as opposed to the conventional commercial practice of dormant pruning, consistently reduced the incidence of flyspeck on apple fruit by approximately 50% in each of 2 years in trees where no fungicides were applied”

✓ located verbatim in the source · abstract, characters 0–240 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Summer pruning slightly but significantly decreased flyspeck severity in fungicide-treated commercial orchards.

Treatment
summer pruninge0
Outcome
disease severitye0
Direction
decreasee0
Setting
commercial orchard blockse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“In commercial orchard blocks using fungicides, summer pruning also produced a slight but significant decrease in disease severity”

✓ located verbatim in the source · abstract, characters 242–371 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 60–65 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Summer pruning decreased hours above 95% relative humidity in the apple canopy by 63%.

Treatment
Summer pruninge0
Outcome
hours of relative humidity >95% in the canopye0
Direction
decreasinge0
Value
63%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Summer pruning resulted in a small change in the apple canopy microclimate, decreasing the hours of relative humidity >95% in the canopy by 63%”

✓ located verbatim in the source · abstract, characters 504–647 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Summer pruning increased evaporative potential.

Treatment
Summer Pruningt0
Outcome
evaporative potentiale0
Direction
increasinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“increasing the evaporative potential”

✓ located verbatim in the source · abstract, characters 652–688 · show in text ↑
t0

“Summer Pruning as a Method for Reducing Flyspeck Disease on Apple Fruit”

✓ located verbatim in the source · title, characters 0–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Summer pruning improved spray deposition in the upper two-thirds of the canopy with an airblast sprayer.

Treatment
Summer pruninge0
Outcome
spray depositione0
Direction
improvede0
Qualifier
upper two-thirds of the tree canopye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Malus domestica
Malus domestica · TaxonW.carter · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Summer pruning also resulted in improved spray deposition in the upper two-thirds of the tree canopy when applications were made with an airblast sprayer”

✓ located verbatim in the source · abstract, characters 690–843 · show in text ↑
t0

“Apple”

✓ located verbatim in the source · title, characters 60–65 · show in text ↑

pruning · disease · Malus domestica (apple)Positive and negative results

24 papers: 16 positive, 8 negative or no effect

15 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. negative

20 papers more in this group

See all 24 papers →

pruning · growth · Malus domestica (apple)Positive and negative results

106 papers: 58 positive, 48 negative or no effect

57 papers in the same direction as this paper · 47 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

102 papers more in this group

See all 106 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.