Paper · 1992 · American Journal of Agricultural Economics

Impact of Damage Control and Quality of Output: Estimating Pest Control Effectiveness

Bruce A. Babcock; Erik Lichtenberg; David Zilberman

7
claims
10
verbatim quotes
131
citations
4
research areas
—
Not open access

Abstract

Abstract Damage control affects both realized output and product quality; ignoring quality leads to underestimates of damage control agent productivity. Empirical analysis of pesticide use in North Carolina apple production using the damage control approach shows that fungicides and pruning reduce both yield losses and quality degradation, while insecticides reduce quality damage. Quality accounts for substantial shares of profit‐maximizing insecticide and fungicide use. Use of both insecticides and fungicides appears excessive, while the potential for substitution between mechanical and chemical disease control appears large. A Cobb‐Douglas specification of the quantity production function gives substantially larger estimates of fungicide productivity than the damage control specification.

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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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fungicides reduced both yield losses and quality degradation in North Carolina apple production.

Treatment
fungicidese0
Outcome
yield losses and quality degradatione0
Direction
reducee0
Setting
North Carolinae0

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

“Empirical analysis of pesticide use in North Carolina apple production using the damage control approach shows that fungicides and pruning reduce both yield losses and quality degradation, while insecticides reduce quality damage”

✓ located verbatim in the source · abstract, characters 153–382 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pruning reduced both yield losses and quality degradation in North Carolina apple production.

Treatment
pruninge0
Outcome
yield losses and quality degradatione0
Direction
reducee0
Setting
North Carolinae0

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

“Empirical analysis of pesticide use in North Carolina apple production using the damage control approach shows that fungicides and pruning reduce both yield losses and quality degradation, while insecticides reduce quality damage”

✓ located verbatim in the source · abstract, characters 153–382 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Insecticides reduced quality damage in North Carolina apple production.

Treatment
insecticidese0
Outcome
quality damagee0
Direction
reducee0
Setting
North Carolinae0

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

“Empirical analysis of pesticide use in North Carolina apple production using the damage control approach shows that fungicides and pruning reduce both yield losses and quality degradation, while insecticides reduce quality damage”

✓ located verbatim in the source · abstract, characters 153–382 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Quality accounts for substantial shares of profit-maximizing insecticide and fungicide use.

Outcome
substantial shares of profit‐maximizing insecticide and fungicide usee0

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

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

Verbatim

e0

“Quality accounts for substantial shares of profit‐maximizing insecticide and fungicide use”

✓ located verbatim in the source · abstract, characters 384–474 · show in text ↑
e1

“North Carolina apple production”

✓ located verbatim in the source · abstract, characters 192–223 · show in text ↑
Recommendationauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Use of both insecticides and fungicides appears excessive in apple production.

Outcome
Use of both insecticides and fungicides appears excessivee0

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

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

Verbatim

e0

“Use of both insecticides and fungicides appears excessive”

✓ located verbatim in the source · abstract, characters 476–533 · show in text ↑
e1

“North Carolina apple production”

✓ located verbatim in the source · abstract, characters 192–223 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The potential for substitution between mechanical and chemical disease control appears large in apple production.

Outcome
potential for substitution between mechanical and chemical disease controle0

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

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

Verbatim

e0

“the potential for substitution between mechanical and chemical disease control appears large”

✓ located verbatim in the source · abstract, characters 541–633 · show in text ↑
e1

“North Carolina apple production”

✓ located verbatim in the source · abstract, characters 192–223 · show in text ↑
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

A Cobb-Douglas specification of the production function gave substantially larger estimates of fungicide productivity than the damage control specification.

Outcome
estimates of fungicide productivitye0
Direction
largere0
Comparator
damage control specificatione0

Verbatim

e0

“gives substantially larger estimates of fungicide productivity than the damage control specification”

✓ located verbatim in the source · abstract, characters 700–800 · show in text ↑

fungicide · quality: general · Malus domestica (apple)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. no effect
  2. no effect
See all 3 papers →

pruning · quality: general · Malus domestica (apple)Positive and negative results

12 papers: 5 positive, 7 negative or no effect

4 papers in the same direction as this paper · 7 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

8 papers more in this group

See all 12 papers →

insecticide · pest · Malus domestica (apple)Positive and negative results

19 papers: 16 positive, 3 negative or no effect

15 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

15 papers more in this group

See all 19 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.