Paper · 2020 · Journal of Plant Protection and Pathology /Journal of Plant Protection and Pathology

Could Organic Pesticides Be a Good Alternative to Synthetics in Controlling Aphids and Leafhoppers in Tomato Fields?

Hala A.; S. Gaffar

8
claims
22
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

We aimed in this investigation to prove that organic pesticides (neem oil and a mixture of cottonseed and sunflower oil) can replace synthetics (malathion) in controlling aphids and leafhoppers attacking tomato under field conditions. The experiment was laid out in a randomized complete block design, during two successive seasons; 2018 and 2019 in a total area of 0.5 ha. Both yellow sticky traps and plant sampling methods were used. Data analyses revealed that the mixture of cotton and sunflower oil gave the highest control levels of both leafhoppers and aphid Myzus persicae (Sulzer). Leafhoppers were much more susceptible to all the applied compounds than aphids. Oil mixture proved to be either higher or equal to malathion in its efficiency. Neem oil was less efficient on both pests than malathion. Effectiveness of all tested compounds highly decreased after 14days post treatment. The highest control levels of both pests occurred after three consecutive treatments. Accordingly, cottonseed oil mixed with sunflower oil is very promising in controlling those two pests and can replace malathion in IPM programs in tomato fields in Egypt, taking into consideration repeating the application for three consecutive times with maximum one week between sprayings. Thus, the answer to the study title according to our research is “yes they could” provided that farmers’ awareness is raised concerning shifting towards those organic compounds and training them on using such safe, eco-friendly and cost effective natural products is taking into consideration to achieve agricultural sustainability.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cotton and sunflower oil mixture gave highest leafhopper control.

Treatment
mixture of cotton and sunflower oile0
Interactor
leafhoppersCicadellidaee0pest
Outcome
control levels of both leafhopperse0
Direction
higheste0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the mixture of cotton and sunflower oil gave the highest control levels of both leafhoppers and aphid Myzus persicae (Sulzer)”

✓ located verbatim in the source · abstract, characters 465–590 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
t1

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cotton and sunflower oil mixture gave highest aphid control.

Treatment
mixture of cotton and sunflower oile0
Interactor
Myzus persicaeMyzus persicaee0pest
Outcome
control levels of both leafhoppers and aphid Myzus persicaee0
Direction
higheste0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Myzus persicae
Myzus persicae · InteractorScott Bauer · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the mixture of cotton and sunflower oil gave the highest control levels of both leafhoppers and aphid Myzus persicae (Sulzer)”

✓ located verbatim in the source · abstract, characters 465–590 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
t1

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Leafhoppers were more susceptible to all compounds than aphids.

Interactor
LeafhoppersCicadellidaee0pest
Outcome
Leafhoppers were much more susceptiblee0
Direction
moree0
Comparator
aphidse0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Leafhoppers were much more susceptible to all the applied compounds than aphids”

✓ located verbatim in the source · abstract, characters 592–671 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
t1

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oil mixture equaled or exceeded malathion efficiency.

Treatment
Oil mixturee0
Outcome
efficiencye0
Direction
higher or equale0
Comparator
malathione0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Oil mixture proved to be either higher or equal to malathion in its efficiency”

✓ located verbatim in the source · abstract, characters 673–751 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
t1

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Neem oil was less efficient than malathion for both pests.

Treatment
Neem oile0
Outcome
efficient on both pestse0
Direction
lesse0
Comparator
malathione0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Neem oil was less efficient on both pests than malathion”

✓ located verbatim in the source · abstract, characters 753–809 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
t1

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Effectiveness declined 14 days after treatment.

Outcome
Effectiveness of all tested compoundse0
Direction
decreasede0
Qualifier
after 14days post treatmente0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Effectiveness of all tested compounds highly decreased after 14days post treatment”

✓ located verbatim in the source · abstract, characters 811–893 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
t1

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three consecutive treatments gave the highest control of both pests.

Treatment
three consecutive treatmentse0
Outcome
control levels of both pestse0
Direction
higheste0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest control levels of both pests occurred after three consecutive treatments”

✓ located verbatim in the source · abstract, characters 895–979 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
t1

“Tomato”

✓ located verbatim in the source · title, characters 102–108 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Authors recommend mixed oils in tomato IPM with three sprays at most one week apart.

Treatment
cottonseed oil mixed with sunflower oile0
Outcome
replace malathion in IPM programse0
Qualifier
three consecutive times with maximum one week between sprayingse0
Setting
Egypte0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“cottonseed oil mixed with sunflower oil is very promising in controlling those two pests and can replace malathion in IPM programs in tomato fields in Egypt, taking into consideration repeating the application for three consecutive times with maximum one week between sprayings”

✓ located verbatim in the source · abstract, characters 994–1271 · show in text ↑

botanical · pest · Solanum lycopersicum (tomato)Positive and negative results

104 papers: 90 positive, 14 negative or no effect

13 papers in the same direction as this paper · 90 in the opposite direction

  1. positive
  2. positive
  3. positive

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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.