Paper · 1987 · New Zealand Journal of Crop and Horticultural Science

Boysenberries: Control of botrytis fruit rot by fungicides

L. H. Cheah; K. G. Tate; P. T. Holland

9
claims
22
verbatim quotes
0
citations
4
research areas
✓
Open access

Abstract

Abstract The efficacy of fungicides and the optimum time of application were evaluated in spray programmes for control of botrytis fruit rot (caused by Botrytis cinerea Pers.: Fr.) in export boysenberries ( Rubus hybrid). All fungicides tested controlled the disease, with dicarboximides (iprodione, myclozolin, procymidone, vinclozolin) and dichlofluanid being more effective than captan, thiram, or folpet. Avoiding dicarboximide sprays after 10% blossom (two applications of dicarboximide before 10% blossom), followed by folpet until mid harvest resulted in slightly more berry rot than a full dicarboximide programme (9 applications), but did not reduce marketable yield: therefore, a reduced use of dicarboximides is recommended to avoid problems associated with the resistant strains of B . cinerea identified in New Zealand. Degradation of dicarboximide residues on fruit after programmes of 9 applications followed first‐order kinetics with calculated half‐lives of 10–12 days for iprodione, 9 days for procymidone, 7 days for vinclozolin, and 5.5 days for myclozolin. These decay rates are discussed in relation to residue restrictions imposed by countries importing New Zealand boysenberries.

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Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All tested fungicides controlled botrytis fruit rot.

Taxon
boysenberriest0
Treatment
fungicidese0
Interactor
Botrytis cinereaBotrytis cinereat1pathogen
Outcome
diseasee0
Direction
controllede0

Not reportedComparator

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

Botrytis cinerea
Botrytis cinerea · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“All fungicides tested controlled the disease”

✓ located verbatim in the source · abstract, characters 222–266 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
t1

“Botrytis cinerea”

✓ located verbatim in the source · abstract, characters 152–168 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dicarboximides and dichlofluanid were more effective than captan, thiram or folpet.

Taxon
boysenberriest0
Treatment
dicarboximides (iprodione, myclozolin, procymidone, vinclozolin) and dichlofluanide0
Interactor
Botrytis cinereaBotrytis cinereat1pathogen
Outcome
more effectivee0
Direction
more effectivee0
Comparator
captan, thiram, or folpete0

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

Botrytis cinerea
Botrytis cinerea · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“dicarboximides (iprodione, myclozolin, procymidone, vinclozolin) and dichlofluanid being more effective than captan, thiram, or folpet.”

✓ located verbatim in the source · abstract, characters 273–408 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
t1

“Botrytis cinerea”

✓ located verbatim in the source · abstract, characters 152–168 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The reduced dicarboximide schedule yielded slightly more berry rot than the full schedule.

Taxon
boysenberriest0
Treatment
two applications of dicarboximide before 10% blossome0
Interactor
Botrytis cinereaBotrytis cinereat1pathogen
Outcome
berry rote0
Direction
moree0
Comparator
full dicarboximide programmee0

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

Botrytis cinerea
Botrytis cinerea · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Avoiding dicarboximide sprays after 10% blossom (two applications of dicarboximide before 10% blossom), followed by folpet until mid harvest resulted in slightly more berry rot than a full dicarboximide programme (9 applications)”

✓ located verbatim in the source · abstract, characters 409–638 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
t1

“Botrytis cinerea”

✓ located verbatim in the source · abstract, characters 152–168 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The reduced schedule did not reduce marketable yield.

Taxon
boysenberriest0
Treatment
two applications of dicarboximide before 10% blossomt1
Outcome
marketable yielde0
Direction
did not reducee0
Comparator
full dicarboximide programmet1

Verbatim

e0

“but did not reduce marketable yield”

✓ located verbatim in the source · abstract, characters 640–675 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
t1

“two applications of dicarboximide before 10% blossom), followed by folpet until mid harvest resulted in slightly more berry rot than a full dicarboximide programme”

✓ located verbatim in the source · abstract, characters 458–621 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Reduced dicarboximide use is recommended to avoid resistant Botrytis strains.

Taxon
boysenberriest0
Interactor
B . cinereaBotrytis cinereae0pathogen
Outcome
reduced use of dicarboximidese0
Setting
New Zealande0

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

Botrytis cinerea
Botrytis cinerea · InteractorRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“a reduced use of dicarboximides is recommended to avoid problems associated with the resistant strains of B . cinerea identified in New Zealand.”

✓ located verbatim in the source · abstract, characters 688–832 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Residue decay half-life for iprodione was 10–12 days.

Taxon
boysenberriest0
Organ / stage
fruite0
Treatment
iprodionee0
Outcome
half‐livese0
Value
10–12 dayse0

Verbatim

e0

“Degradation of dicarboximide residues on fruit after programmes of 9 applications followed first‐order kinetics with calculated half‐lives of 10–12 days for iprodione, 9 days for procymidone, 7 days for vinclozolin, and 5.5 days for myclozolin.”

✓ located verbatim in the source · abstract, characters 833–1077 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Residue decay half-life for procymidone was 9 days.

Taxon
boysenberriest0
Organ / stage
fruite0
Treatment
procymidonee0
Outcome
half‐livese0
Value
9 dayse0

Verbatim

e0

“Degradation of dicarboximide residues on fruit after programmes of 9 applications followed first‐order kinetics with calculated half‐lives of 10–12 days for iprodione, 9 days for procymidone, 7 days for vinclozolin, and 5.5 days for myclozolin.”

✓ located verbatim in the source · abstract, characters 833–1077 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Residue decay half-life for vinclozolin was 7 days.

Taxon
boysenberriest0
Organ / stage
fruite0
Treatment
vinclozoline0
Outcome
half‐livese0
Value
7 dayse0

Verbatim

e0

“Degradation of dicarboximide residues on fruit after programmes of 9 applications followed first‐order kinetics with calculated half‐lives of 10–12 days for iprodione, 9 days for procymidone, 7 days for vinclozolin, and 5.5 days for myclozolin.”

✓ located verbatim in the source · abstract, characters 833–1077 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Residue decay half-life for myclozolin was 5.5 days.

Taxon
boysenberriest0
Organ / stage
fruite0
Treatment
myclozoline0
Outcome
half‐livese0
Value
5.5 dayse0

Verbatim

e0

“Degradation of dicarboximide residues on fruit after programmes of 9 applications followed first‐order kinetics with calculated half‐lives of 10–12 days for iprodione, 9 days for procymidone, 7 days for vinclozolin, and 5.5 days for myclozolin.”

✓ located verbatim in the source · abstract, characters 833–1077 · show in text ↑
t0

“Boysenberries”

✓ located verbatim in the source · title, characters 0–13 · show in text ↑