Abstract
Population dynamic studies conducted at Peshawar, Pakistan showed that the activity of onion thirps (Thrips tabaci Lindermann) was first recorded on 3rd February (1.20 thrips/plant) and reached to its peak (100 thrips/plant) during the last week of April. Later, the population declined to 3.85 thrips/plant towards the end of May as the crop started to mature. Population model using the meteorological data indicated that linear and quadratic components of average air temperature were important in predicting the population development of T. tabaci. However, the model accounted only for 44% of total population variability. The insecticides; Thiodan ® , Confidor ® , Tracer ® , Megamos ® , and Actara ® were sprayed three times and data were taken at 24 hours, 72 hours, seven days and 10 days intervals. Except Actara, all insecticides were significantly effective against the pest as compared to control. Maximum cost-benefit ratio was recorded for Confidor (39.45) and the least was recorded for Actara (3.41) treated plots.
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Claims 7
Claim · model-written summary
The onion thrips population peaked at 100 thrips per plant during the last week of April at Peshawar.
- Taxon
- onion
Allium cepat0 - Interactor
- Thrips tabaci
Thrips tabacie0pest - Outcome
- peake0
- Value
- 100 thrips/plante0
- Qualifier
- during the last week of Aprile0
- Setting
- Peshawar, Pakistane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Population dynamics and chemical control of onion thrips”
e0“Population dynamic studies conducted at Peshawar, Pakistan showed that the activity of onion thirps (Thrips tabaci Lindermann) was first recorded on 3rd February (1.20 thrips/plant) and reached to its peak (100 thrips/plant) during the last week of April”
Claim · model-written summary
The onion thrips population declined to 3.85 thrips per plant towards the end of May as the crop matured.
- Taxon
- onionAllium cepat0
- Interactor
- Thrips tabaciThrips tabacie0pest
- Outcome
- populatione1
- Value
- 3.85 thrips/plante1
- Qualifier
- towards the end of May as the crop started to maturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Population dynamics and chemical control of onion thrips”
e0“Population dynamic studies conducted at Peshawar, Pakistan showed that the activity of onion thirps (Thrips tabaci Lindermann) was first recorded on 3rd February (1.20 thrips/plant) and reached to its peak (100 thrips/plant) during the last week of April”
e1“Later, the population declined to 3.85 thrips/plant towards the end of May as the crop started to mature”
Claim · model-written summary
The population model using meteorological data explained only 44% of total onion thrips population variability.
- Taxon
- onionAllium cepat0
- Outcome
- total population variabilitye3
- Value
- 44%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Population dynamics and chemical control of onion thrips”
e3“However, the model accounted only for 44% of total population variability”
Claim · model-written summary
Linear and quadratic components of average air temperature were important in predicting Thrips tabaci population development.
- Taxon
- onionAllium cepat0
- Treatment
- average air temperaturee2
- Interactor
- T. tabaciThrips tabacie2pest
- Outcome
- population developmente2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Population dynamics and chemical control of onion thrips”
e2“Population model using the meteorological data indicated that linear and quadratic components of average air temperature were important in predicting the population development of T. tabaci”
Claim · model-written summary
Except Actara, all tested insecticides were significantly effective against the thrips pest compared with control.
- Taxon
- onionAllium cepat0
- Treatment
- insecticidese4
- Interactor
- Thrips tabaciThrips tabacie0pest
- Outcome
- effective against the peste4
- Direction
- significantly effectivee4
- Qualifier
- Except Actarae4
- Comparator
- controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Population dynamics and chemical control of onion thrips”
e0“Population dynamic studies conducted at Peshawar, Pakistan showed that the activity of onion thirps (Thrips tabaci Lindermann) was first recorded on 3rd February (1.20 thrips/plant) and reached to its peak (100 thrips/plant) during the last week of April”
e4“Except Actara, all insecticides were significantly effective against the pest as compared to control”
Claim · model-written summary
Confidor gave the maximum cost-benefit ratio of 39.45 in the insecticide plots.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Population dynamics and chemical control of onion thrips”
e5“Maximum cost-benefit ratio was recorded for Confidor (39.45)”
Claim · model-written summary
Actara gave the least cost-benefit ratio of 3.41 in the insecticide plots.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Population dynamics and chemical control of onion thrips”
e5“Maximum cost-benefit ratio was recorded for Confidor (39.45)”
e6“the least was recorded for Actara (3.41) treated plots”
The same questions in other papers
insecticide · Thrips tabaci · Allium cepa (onion)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
5 papers more in this group
See all 9 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.