Paper · 2017 · Sustainable Agriculture Research

Field Testing of Efficacy of Three Environmentally Friendly Insecticides Against Colorado Potato Beetle (Leptinotarsa Decemlineata [Say], Coleoptera, Chrysomelidae) on Potato-Evaluation of the Effect on Yield

Ziga Laznik; Stanislav Trdan

11
claims
11
verbatim quotes
2
citations
2
research areas
✓
Open access · cc-by

Abstract

In 2007 and 2008 the field experiment was conducted to test the efficacy of three environmentally friendly insecticides against the Colorado potato beetle (Leptinotarsa decemlineata), with the aim of evaluating their effect on the yield of potato. 0.25 % water emulsion of Neem-Azal (active ingredient azadirachtin) was applied twice, while 3 % water emulsion of Aktiv (a.i. potassium salt of fatty acids) and 1 % water emulsion of Prima (a.i. refined rape oil) were applied eight times. In 2007, the potato yield was higher (25.3±3.2 t ha-1) than in 2008 (8.2 ± 0.8 t ha-1). In 2007 there were no significant differences in potato yield at different control measures and the yield ranged from 7.5 ± 1.3 t ha-1 (Aktiv) to 9.4 ± 1.8 t ha-1 (Prima). In 2008, the highest potato yield was recorded in Neem-Azal treatment (3.5 ± 0.7 t ha-1), while in two other insecticide treatments the potato yield did not differ significantly with control treatment neither with the Neem-Azal treatment. Potato tubers were classified into three fractions: fraction 1 (tubers <4 cm), fraction 2 (tubers between 4 and 5 cm), and fraction 3 (tubers > 5 cm). On average we produce 2.11 ± 0.06 t ha-1, 9.93 ± 0.53 t ha-1, and 13.17 ± 0.70 t ha-1 of potato in 2007, and 2.11 ± 0.20 t ha-1, 4.68 ± 0.37 t ha-1, 0.84 ± 0.29 t ha-1 of potato in 2008, respectivelly.

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Claims 11

Observationobservedoriginal resultmeasured

Claim · model-written summary

Potato yield in 2007 was 25.3±3.2 t ha-1.

Outcome
potato yielde1
Value
25.3±3.2 t ha-1e1
Qualifier
In 2007e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“In 2007, the potato yield was higher (25.3±3.2 t ha-1) than in 2008 (8.2 ± 0.8 t ha-1)”

✓ located verbatim in the source · abstract, characters 488–574 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Potato yield in 2008 was 8.2 ± 0.8 t ha-1.

Outcome
potato yielde1
Value
8.2 ± 0.8 t ha-1e1
Qualifier
in 2008e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“In 2007, the potato yield was higher (25.3±3.2 t ha-1) than in 2008 (8.2 ± 0.8 t ha-1)”

✓ located verbatim in the source · abstract, characters 488–574 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

In 2007 there was no significant difference in potato yield among the different control measures (insecticide treatments) ranging from 7.5 to 9.4 t ha-1.

Treatment
different control measurese1
Outcome
potato yielde1
Direction
no_changeinferrede1
Qualifier
In 2007e1

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“In 2007 there were no significant differences in potato yield at different control measures and the yield ranged from 7.5 ± 1.3 t ha-1 (Aktiv) to 9.4 ± 1.8 t ha-1 (Prima)”

✓ located verbatim in the source · abstract, characters 576–746 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In 2008 the highest potato yield was recorded in the Neem-Azal treatment, at 3.5 ± 0.7 t ha-1.

Treatment
Neem-Azal treatmente1
Outcome
potato yielde1
Direction
higheste1
Value
3.5 ± 0.7 t ha-1e1
Qualifier
In 2008e1
Comparator
two other insecticide treatmentse1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“In 2008, the highest potato yield was recorded in Neem-Azal treatment (3.5 ± 0.7 t ha-1), while in two other insecticide treatments the potato yield did not differ significantly with control treatment neither with the Neem-Azal treatment”

✓ located verbatim in the source · abstract, characters 748–985 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

In 2008 two other insecticide treatments did not differ significantly in potato yield from the control treatment or from Neem-Azal.

Treatment
two other insecticide treatmentse1
Outcome
potato yielde1
Direction
no_changeinferrede1
Qualifier
neither with the Neem-Azal treatmente1
Comparator
control treatmente1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“In 2008, the highest potato yield was recorded in Neem-Azal treatment (3.5 ± 0.7 t ha-1), while in two other insecticide treatments the potato yield did not differ significantly with control treatment neither with the Neem-Azal treatment”

✓ located verbatim in the source · abstract, characters 748–985 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In 2007, fraction 1 (tubers <4 cm) yield was 2.11 ± 0.06 t ha-1.

Outcome
fraction 1 (tubers <4 cm)e1
Value
2.11 ± 0.06 t ha-1e1
Qualifier
in 2007e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Potato tubers were classified into three fractions: fraction 1 (tubers <4 cm), fraction 2 (tubers between 4 and 5 cm), and fraction 3 (tubers > 5 cm). On average we produce 2.11 ± 0.06 t ha-1, 9.93 ± 0.53 t ha-1, and 13.17 ± 0.70 t ha-1 of potato in 2007, and 2.11 ± 0.20 t ha-1, 4.68 ± 0.37 t ha-1, 0.84 ± 0.29 t ha-1 of potato in 2008, respectivelly”

✓ located verbatim in the source · abstract, characters 987–1338 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In 2007, fraction 2 (tubers between 4 and 5 cm) yield was 9.93 ± 0.53 t ha-1.

Outcome
fraction 2 (tubers between 4 and 5 cm)e1
Value
9.93 ± 0.53 t ha-1e1
Qualifier
in 2007e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Potato tubers were classified into three fractions: fraction 1 (tubers <4 cm), fraction 2 (tubers between 4 and 5 cm), and fraction 3 (tubers > 5 cm). On average we produce 2.11 ± 0.06 t ha-1, 9.93 ± 0.53 t ha-1, and 13.17 ± 0.70 t ha-1 of potato in 2007, and 2.11 ± 0.20 t ha-1, 4.68 ± 0.37 t ha-1, 0.84 ± 0.29 t ha-1 of potato in 2008, respectivelly”

✓ located verbatim in the source · abstract, characters 987–1338 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In 2007, fraction 3 (tubers > 5 cm) yield was 13.17 ± 0.70 t ha-1.

Outcome
fraction 3 (tubers > 5 cm)e1
Value
13.17 ± 0.70 t ha-1e1
Qualifier
in 2007e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Potato tubers were classified into three fractions: fraction 1 (tubers <4 cm), fraction 2 (tubers between 4 and 5 cm), and fraction 3 (tubers > 5 cm). On average we produce 2.11 ± 0.06 t ha-1, 9.93 ± 0.53 t ha-1, and 13.17 ± 0.70 t ha-1 of potato in 2007, and 2.11 ± 0.20 t ha-1, 4.68 ± 0.37 t ha-1, 0.84 ± 0.29 t ha-1 of potato in 2008, respectivelly”

✓ located verbatim in the source · abstract, characters 987–1338 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In 2008, fraction 1 (tubers <4 cm) yield was 2.11 ± 0.20 t ha-1.

Outcome
fraction 1 (tubers <4 cm)e1
Value
2.11 ± 0.20 t ha-1e1
Qualifier
in 2008e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Potato tubers were classified into three fractions: fraction 1 (tubers <4 cm), fraction 2 (tubers between 4 and 5 cm), and fraction 3 (tubers > 5 cm). On average we produce 2.11 ± 0.06 t ha-1, 9.93 ± 0.53 t ha-1, and 13.17 ± 0.70 t ha-1 of potato in 2007, and 2.11 ± 0.20 t ha-1, 4.68 ± 0.37 t ha-1, 0.84 ± 0.29 t ha-1 of potato in 2008, respectivelly”

✓ located verbatim in the source · abstract, characters 987–1338 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In 2008, fraction 2 (tubers between 4 and 5 cm) yield was 4.68 ± 0.37 t ha-1.

Outcome
fraction 2 (tubers between 4 and 5 cm)e1
Value
4.68 ± 0.37 t ha-1e1
Qualifier
in 2008e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Potato tubers were classified into three fractions: fraction 1 (tubers <4 cm), fraction 2 (tubers between 4 and 5 cm), and fraction 3 (tubers > 5 cm). On average we produce 2.11 ± 0.06 t ha-1, 9.93 ± 0.53 t ha-1, and 13.17 ± 0.70 t ha-1 of potato in 2007, and 2.11 ± 0.20 t ha-1, 4.68 ± 0.37 t ha-1, 0.84 ± 0.29 t ha-1 of potato in 2008, respectivelly”

✓ located verbatim in the source · abstract, characters 987–1338 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In 2008, fraction 3 (tubers > 5 cm) yield was 0.84 ± 0.29 t ha-1.

Outcome
fraction 3 (tubers > 5 cm)e1
Value
0.84 ± 0.29 t ha-1e1
Qualifier
in 2008e1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Potato tubers were classified into three fractions: fraction 1 (tubers <4 cm), fraction 2 (tubers between 4 and 5 cm), and fraction 3 (tubers > 5 cm). On average we produce 2.11 ± 0.06 t ha-1, 9.93 ± 0.53 t ha-1, and 13.17 ± 0.70 t ha-1 of potato in 2007, and 2.11 ± 0.20 t ha-1, 4.68 ± 0.37 t ha-1, 0.84 ± 0.29 t ha-1 of potato in 2008, respectivelly”

✓ located verbatim in the source · abstract, characters 987–1338 · show in text ↑

insecticide · yield · Solanum tuberosum (potato)Results differ

32 papers: 22 positive, 10 negative or no effect

9 papers in the same direction as this paper · 22 in the opposite direction

  1. positive
  2. positive
  3. positive

28 papers more in this group

See all 32 papers →

botanical · yield · Solanum tuberosum (potato)Positive and negative results

39 papers: 35 positive, 4 negative or no effect

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

  1. negative
  2. negative
  3. no effect

35 papers more in this group

See all 39 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.