Abstract
An attempts has been made to study the effects of insecticides i.e. 0.05 per cent aqueous solution of dimethoate and Neemarin, on the biology of Pieris brassicae (Linn.) at 251C and 7010 per cent relative humidity through life table methods. Survivorship and Expectancy of the life was greatest in the beginning of the age and decreased gradually with the advancement of the age in the all treatment including control. The number of eggs was found less in deltamethrin (192 eggs/female/generation) as compared to neemarin (207 eggs/female/generation), and dimethoate (214 eggs/ female/generation) while it was found 281 eggs/female/generation in the control. The net reproductive rate (Ro) was also reduced with the treatment of the insecticide. Kvalues of P. brassicae was lowest on Neemarin treatment. The peak of k-value was found on Pre-pupal stage followed by Ist instar stage. It showed that Pre-pupal stage was the most susceptible stage on all treatments and non treated control .
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Claims 8
Claim · model-written summary
Pieris brassicae survivorship and life expectancy declined with age in all treatments, including control.
- Taxon
- Pieris brassicae
_Pieris_brassicae_-_Foret_de_Bouconne%2C_France_-_female.jpg?width=60)
Pieris brassicaet0 - Organ / stage
- beginning of the agee0
- Outcome
- Survivorship and Expectancy of the lifee0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Pieris_brassicae_-_Foret_de_Bouconne%2C_France_-_female.jpg?width=500)
Verbatim
e0“Survivorship and Expectancy of the life was greatest in the beginning of the age and decreased gradually with the advancement of the age in the all treatment including control”
t0“Pieris brassicae (Linn.) on cabbage”
Claim · model-written summary
Deltamethrin-treated Pieris brassicae laid 192 eggs per female per generation, below the 281 in controls.
- Taxon
- Pieris brassicaePieris brassicaet0
- Treatment
- deltamethrine0
- Interactor
- cabbage
Brassica oleracea var. capitatat0host - Outcome
- number of eggse0
- Direction
- lesse0
- Value
- 192 eggs/female/generatione0
- Qualifier
- 281 eggs/female/generatione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of eggs was found less in deltamethrin (192 eggs/female/generation) as compared to neemarin (207 eggs/female/generation), and dimethoate (214 eggs/ female/generation) while it was found 281 eggs/female/generation in the control”
t0“Pieris brassicae (Linn.) on cabbage”
Claim · model-written summary
Neemarin-treated Pieris brassicae laid 207 eggs per female per generation versus 281 in controls.
- Taxon
- Pieris brassicaePieris brassicaet0
- Treatment
- neemarine0
- Interactor
- cabbageBrassica oleracea var. capitatat0host
- Outcome
- number of eggse0
- Direction
- lesse0
- Value
- 207 eggs/female/generatione0
- Qualifier
- 281 eggs/female/generatione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of eggs was found less in deltamethrin (192 eggs/female/generation) as compared to neemarin (207 eggs/female/generation), and dimethoate (214 eggs/ female/generation) while it was found 281 eggs/female/generation in the control”
t0“Pieris brassicae (Linn.) on cabbage”
Claim · model-written summary
Dimethoate-treated Pieris brassicae laid 214 eggs per female per generation versus 281 in controls.
- Taxon
- Pieris brassicaePieris brassicaet0
- Treatment
- dimethoatee0
- Interactor
- cabbageBrassica oleracea var. capitatat0host
- Outcome
- number of eggse0
- Direction
- lesse0
- Value
- 214 eggs/ female/generatione0
- Qualifier
- 281 eggs/female/generatione0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of eggs was found less in deltamethrin (192 eggs/female/generation) as compared to neemarin (207 eggs/female/generation), and dimethoate (214 eggs/ female/generation) while it was found 281 eggs/female/generation in the control”
t0“Pieris brassicae (Linn.) on cabbage”
Claim · model-written summary
Insecticide treatment reduced the net reproductive rate of Pieris brassicae.
- Taxon
- Pieris brassicaePieris brassicaet0
- Treatment
- insecticidee0
- Interactor
- cabbageBrassica oleracea var. capitatat0host
- Outcome
- net reproductive rate (Ro)e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The net reproductive rate (Ro) was also reduced with the treatment of the insecticide”
t0“Pieris brassicae (Linn.) on cabbage”
Claim · model-written summary
Pieris brassicae K-values were lowest under Neemarin treatment.
- Taxon
- P. brassicaePieris brassicaee0
- Treatment
- Neemarin treatmente0
- Interactor
- cabbageBrassica oleracea var. capitatat0host
- Outcome
- Kvaluese0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kvalues of P. brassicae was lowest on Neemarin treatment”
t0“Pieris brassicae (Linn.) on cabbage”
Claim · model-written summary
The peak K-value occurred at the pre-pupal stage, followed by the first instar.
- Taxon
- Pieris brassicaePieris brassicaet0
- Organ / stage
- Pre-pupal stagee0
- Interactor
- cabbageBrassica oleracea var. capitatat0host
- Outcome
- k-valuee0
- Direction
- peake0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peak of k-value was found on Pre-pupal stage followed by Ist instar stage”
t0“Pieris brassicae (Linn.) on cabbage”
Claim · model-written summary
The pre-pupal stage was identified as the most susceptible under all treatments and control.
- Taxon
- Pieris brassicaePieris brassicaet0
- Organ / stage
- Pre-pupal stagee0
- Interactor
- cabbageBrassica oleracea var. capitatat0host
- Outcome
- most susceptible stagee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-pupal stage was the most susceptible stage on all treatments and non treated control”
t0“Pieris brassicae (Linn.) on cabbage”