Abstract
Present studies were conducted on population dynamics of sucking insect pests; thrips, Thrips tabaci and whitefly Bemesia tabaci, and their predator, Geocoris spp., on Mustard crop Brassica compestris L. Results showed that weekly mean population per leaf of thrips, whitefly and their predator, Geocoris varied with different dates and phenology of mustard localities. Initially, population of thrips and whitefly were very low (3.69±0.45, 1.00+0.25) in 3 rd week of December 2010, and highest recorded (100.62+0.51, 24.77+0.89) in 3 rd week of March, respectively. Correspondingly, predator Geocoris remained maximum (15.33+0.31) in 3 rd week of February and minimum (4.50+0.25) in 1 st week of January at Tando Allahyar. The present results demonstrated that mean population of thrips and whitefly at Tandojam fields was maximum (129.46±0.84, 40.85+0.90) in 3 rd week of March and minimum (4.92+0.55, 2.69+0.21) in 3 rd week of December, respectively. Predator’s Geocoris population was minimum (5.00+0.32) in 3 rd week of December at initial stages and reached at peak (10.50+0.31) in 3 rd week of March. Temperature and humidity varied during different dates and time, and played an important role in increasing thrips, whitefly and Geocoris population.
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Claims 7
Claim · model-written summary
At Tando Allahyar, thrips rose from 3.69±0.45 per leaf in December to 100.62+0.51 in March.
- Taxon
- mustardt0
- Interactor
- Thrips tabaci
Thrips tabacie2pest - Outcome
- population of thripse0
- Direction
- higheste0
- Value
- 100.62+0.51e0
- Qualifier
- 3.69±0.45e0
- Setting
- Tando Allahyare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“population of thrips and whitefly were very low (3.69±0.45, 1.00+0.25) in 3 rd week of December 2010, and highest recorded (100.62+0.51, 24.77+0.89) in 3 rd week of March, respectively”
e1“at Tando Allahyar”
t0“mustard (Brassica campestris L.)”
e2“thrips, Thrips tabaci”
Claim · model-written summary
At Tando Allahyar, whitefly rose from 1.00+0.25 per leaf in December to 24.77+0.89 in March.
Verbatim
e0“population of thrips and whitefly were very low (3.69±0.45, 1.00+0.25) in 3 rd week of December 2010, and highest recorded (100.62+0.51, 24.77+0.89) in 3 rd week of March, respectively”
e1“at Tando Allahyar”
t0“mustard (Brassica campestris L.)”
e2“whitefly Bemesia tabaci”
Claim · model-written summary
At Tando Allahyar, Geocoris peaked at 15.33+0.31 in February and reached a minimum of 4.50+0.25 in January.
- Taxon
- mustardt0
- Outcome
- predator Geocorise0
- Direction
- maximume0
- Value
- 15.33+0.31e0
- Qualifier
- minimum (4.50+0.25) in 1 st week of Januarye0
- Setting
- Tando Allahyare0
GeocorisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“predator Geocoris remained maximum (15.33+0.31) in 3 rd week of February and minimum (4.50+0.25) in 1 st week of January at Tando Allahyar”
t0“mustard (Brassica campestris L.)”
Claim · model-written summary
At Tandojam, thrips peaked at 129.46±0.84 in March and were lowest at 4.92+0.55 in December.
- Taxon
- mustardt0
- Interactor
- Thrips tabaciThrips tabacie1pest
- Outcome
- population of thripse0
- Direction
- maximume0
- Value
- 129.46±0.84e0
- Qualifier
- minimum (4.92+0.55, 2.69+0.21)e0
- Setting
- Tandojam fieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mean population of thrips and whitefly at Tandojam fields was maximum (129.46±0.84, 40.85+0.90) in 3 rd week of March and minimum (4.92+0.55, 2.69+0.21) in 3 rd week of December, respectively”
t0“mustard (Brassica campestris L.)”
e1“thrips, Thrips tabaci”
Claim · model-written summary
At Tandojam, whitefly peaked at 40.85+0.90 in March and was lowest at 2.69+0.21 in December.
Verbatim
e0“mean population of thrips and whitefly at Tandojam fields was maximum (129.46±0.84, 40.85+0.90) in 3 rd week of March and minimum (4.92+0.55, 2.69+0.21) in 3 rd week of December, respectively”
t0“mustard (Brassica campestris L.)”
e1“whitefly Bemesia tabaci”
Claim · model-written summary
At Tandojam, Geocoris increased from 5.00+0.32 in December to a peak of 10.50+0.31 in March.
- Taxon
- mustardt0
- Outcome
- Geocoris populatione0
- Direction
- reached at peake0
- Value
- 10.50+0.31e0
- Qualifier
- minimum (5.00+0.32) in 3 rd week of Decembere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Geocoris population was minimum (5.00+0.32) in 3 rd week of December at initial stages and reached at peak (10.50+0.31) in 3 rd week of March”
t0“mustard (Brassica campestris L.)”
Claim · model-written summary
The authors attributed increases in thrips, whitefly and Geocoris populations to variation in temperature and humidity.
- Taxon
- mustardt0
- Second interactor
- whiteflye0pest
- Outcome
- thrips, whitefly and Geocoris populatione0
- Qualifier
- Temperature and humiditye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Temperature and humidity varied during different dates and time, and played an important role in increasing thrips, whitefly and Geocoris population”
t0“mustard (Brassica campestris L.)”