Abstract
Studies were taken up to monitor the seasonal occurrence of whitefly population in cotton as well as its insecticidal management under field conditions of Institutional Research Farm, Institute of Agriculture, Visva-Bharati, Sriniketan, during the kharif season of 2018-19. Population reduction of whitefly was done with eight insecticides having different molecular composition and one untreated check. The experiment was drawn in a Randomised Block Design with three replications. The occurrence of whitefly was noticed during the fourth week of July (0.2 whitefly per plant) which continued till late December. Highest whitefly population was found during fourth week of September (12.24 Whitefly per plant). Correlation studies of whitefly population and abiotic factors suggested that whitefly population was significantly correlated with maximum temperature at 1% level of significance. Among the different insecticides tested for population reduction of whitefly in Bt cotton it was noticed that combination product of Imidacloprid 6% + Lambda Cyhalothrin 4%SL @ 500 ml/ha and 450 ml/ha proved most effective and gave 94.15% and 93.81% pest population reduction after second spray imposition respectively.
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Claims 5
Claim · model-written summary
Whitefly occurred from the fourth week of July (0.2 whitefly per plant) and continued until late December on BT cotton.
- Taxon
- BT cottont0
- Interactor
- Bemisia tabaci Genn.
Bemisia tabacit0pest - Outcome
- occurrence of whiteflye1
- Value
- 0.2 whitefly per plante1
- Qualifier
- which continued till late Decembere1
- Setting
- Institutional Research Farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under field conditions of Institutional Research Farm”
e1“The occurrence of whitefly was noticed during the fourth week of July (0.2 whitefly per plant) which continued till late December”
t0“Population dynamics of whitefly (Bemisia tabaci Genn.) infesting BT cotton and their insecticidal management under field conditions”
Claim · model-written summary
Highest whitefly population on BT cotton was 12.24 whiteflies per plant in the fourth week of September.
- Taxon
- BT cottont0
- Interactor
- Bemisia tabaci Genn.Bemisia tabacit0pest
- Outcome
- whitefly populatione2
- Direction
- Higheste2
- Value
- 12.24 Whitefly per plante2
- Qualifier
- during fourth week of Septembere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Highest whitefly population was found during fourth week of September (12.24 Whitefly per plant)”
t0“Population dynamics of whitefly (Bemisia tabaci Genn.) infesting BT cotton and their insecticidal management under field conditions”
Claim · model-written summary
Whitefly population on BT cotton was significantly correlated with maximum temperature.
- Taxon
- BT cottont0
- Treatment
- maximum temperaturee3
- Interactor
- Bemisia tabaci Genn.Bemisia tabacit0pest
- Outcome
- whitefly populatione3
- Qualifier
- at 1% level of significancee3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“whitefly population was significantly correlated with maximum temperature at 1% level of significance”
t0“Population dynamics of whitefly (Bemisia tabaci Genn.) infesting BT cotton and their insecticidal management under field conditions”
Claim · model-written summary
Imidacloprid 6% + Lambda Cyhalothrin 4%SL at 500 ml/ha gave 94.15% whitefly population reduction on BT cotton compared with an untreated check.
- Taxon
- BT cottont0
- Treatment
- combination product of Imidacloprid 6% + Lambda Cyhalothrin 4%SL @ 500 ml/hae4
- Interactor
- Bemisia tabaci Genn.Bemisia tabacit0pest
- Outcome
- pest population reductione4
- Direction
- reductione4
- Value
- 94.15%e4
- Qualifier
- after second spray impositione4
- Comparator
- one untreated checke5
- Setting
- Institutional Research Farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under field conditions of Institutional Research Farm”
e4“combination product of Imidacloprid 6% + Lambda Cyhalothrin 4%SL @ 500 ml/ha and 450 ml/ha proved most effective and gave 94.15% and 93.81% pest population reduction after second spray imposition respectively”
e5“Population reduction of whitefly was done with eight insecticides having different molecular composition and one untreated check”
t0“Population dynamics of whitefly (Bemisia tabaci Genn.) infesting BT cotton and their insecticidal management under field conditions”
Claim · model-written summary
Imidacloprid 6% + Lambda Cyhalothrin 4%SL at 450 ml/ha gave 93.81% whitefly population reduction on BT cotton compared with an untreated check.
- Taxon
- BT cottont0
- Treatment
- Imidacloprid 6% + Lambda Cyhalothrin 4%SL @ 500 ml/ha and 450 ml/hae4
- Interactor
- Bemisia tabaci Genn.Bemisia tabacit0pest
- Outcome
- pest population reductione4
- Direction
- reductione4
- Value
- 93.81%e4
- Qualifier
- 450 ml/hae4
- Comparator
- one untreated checke5
- Setting
- Institutional Research Farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under field conditions of Institutional Research Farm”
e4“combination product of Imidacloprid 6% + Lambda Cyhalothrin 4%SL @ 500 ml/ha and 450 ml/ha proved most effective and gave 94.15% and 93.81% pest population reduction after second spray imposition respectively”
e5“Population reduction of whitefly was done with eight insecticides having different molecular composition and one untreated check”
t0“Population dynamics of whitefly (Bemisia tabaci Genn.) infesting BT cotton and their insecticidal management under field conditions”
The same questions in other papers
lambda-cyhalothrin · Bemisia tabaci · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
imidacloprid · Bemisia tabaci · Gossypium hirsutum (cotton)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.