Paper · 1975 · Experimental Agriculture

Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan

A. M. Yassin

7
claims
14
verbatim quotes
12
citations
2
research areas
—
Not open access

Abstract

SUMMARY Tomato leaf curl virus disease (TLC) was checked by frequent and early applications of Anthio, Folimat, Malathion and Phosdrin against the aleyrodid vector, Bemisia tabaci. Conversely, up to two-fold increases of fruit yield resulted from such applications of the insecticides. Though seed-bed or field applications, separately, gave satisfactory results on occasions, treatments of the plants in the seed-bed and the field were often both essential. Field observations during the experimental period, over four consecutive seasons, showed peak infection rates within the first 8–12 weeks of tomato planting. There were marked inter-seasonal fluctuations of disease incidence, ranging from < 50 to 100 per cent. There was no clear correlation between spread of the disease and the wind direction. Epidemiological behaviour of the disease is discussed in relation to its chemical control.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Frequent and early insecticide applications checked tomato leaf curl virus disease.

Treatment
frequent and early applications of Anthio, Folimat, Malathion and Phosdrine0
Interactor
Bemisia tabaciBemisia tabacie0pest
Outcome
Tomato leaf curl virus disease (TLC)e0
Direction
was checkede0

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 ↗
Bemisia tabaci
Bemisia tabaci · InteractorPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan”

✓ located verbatim in the source · title, characters 0–80 · show in text ↑
e0

“Tomato leaf curl virus disease (TLC) was checked by frequent and early applications of Anthio, Folimat, Malathion and Phosdrin against the aleyrodid vector, Bemisia tabaci”

✓ located verbatim in the source · abstract, characters 8–179 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Insecticide applications produced up to two-fold increases in tomato fruit yield.

Treatment
such applications of the insecticidese1
Outcome
fruit yielde1
Direction
increasese1
Value
up to two-folde1

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

t0

“Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan”

✓ located verbatim in the source · title, characters 0–80 · show in text ↑
e1

“Conversely, up to two-fold increases of fruit yield resulted from such applications of the insecticides”

✓ located verbatim in the source · abstract, characters 181–284 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed-bed or field insecticide applications gave satisfactory results on occasions.

Treatment
seed-bed or field applicationse2
Outcome
satisfactory results on occasionse2
Direction
gavee2

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

t0

“Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan”

✓ located verbatim in the source · title, characters 0–80 · show in text ↑
e2

“Though seed-bed or field applications, separately, gave satisfactory results on occasions, treatments of the plants in the seed-bed and the field were often both essential”

✓ located verbatim in the source · abstract, characters 286–457 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Treatments in both the seed-bed and the field were often both essential for tomato.

Outcome
treatments of the plants in the seed-bed and the fielde2
Qualifier
were often both essentiale2

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

t0

“Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan”

✓ located verbatim in the source · title, characters 0–80 · show in text ↑
e2

“Though seed-bed or field applications, separately, gave satisfactory results on occasions, treatments of the plants in the seed-bed and the field were often both essential”

✓ located verbatim in the source · abstract, characters 286–457 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Peak tomato leaf curl infection rates occurred within the first 8–12 weeks of planting.

Outcome
peak infection ratese3
Qualifier
within the first 8–12 weeks of tomato plantinge3

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

t0

“Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan”

✓ located verbatim in the source · title, characters 0–80 · show in text ↑
e3

“Field observations during the experimental period, over four consecutive seasons, showed peak infection rates within the first 8–12 weeks of tomato planting”

✓ located verbatim in the source · abstract, characters 459–615 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tomato leaf curl disease incidence fluctuated markedly between seasons, from below 50 to 100 per cent.

Outcome
disease incidencee4
Value
< 50 to 100 per cente4
Qualifier
marked inter-seasonal fluctuationse4

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

t0

“Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan”

✓ located verbatim in the source · title, characters 0–80 · show in text ↑
e4

“There were marked inter-seasonal fluctuations of disease incidence, ranging from < 50 to 100 per cent”

✓ located verbatim in the source · abstract, characters 617–718 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Spread of the disease showed no clear correlation with wind direction.

Treatment
wind directione5
Outcome
spread of the diseasee5

Not reportedDirection

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

t0

“Epidemics and Chemical Control of Leaf Curl Virus Disease of Tomato in the Sudan”

✓ located verbatim in the source · title, characters 0–80 · show in text ↑
e5

“There was no clear correlation between spread of the disease and the wind direction”

✓ located verbatim in the source · abstract, characters 720–803 · show in text ↑

malathion · Bemisia tabaci · Solanum lycopersicum (tomato)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

insecticide · yield · Solanum lycopersicum (tomato)Results differ

29 papers: 22 positive, 7 negative or no effect

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

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

25 papers more in this group

See all 29 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.