Abstract
Abstract In a field study of the spatial distribution of the pests of mustard, Brassica campestris; Lipaphis erysimi (Kaltenback) and Athalia proxima Klug. and predator Coccinella septumpunctata Linn. attack on Lipaphis erysimi at Shillong, Meghalaya in 1984–1985. Various statistical parameters were calculated for each set of observation. L. erysimi on leaf, shoot, inflorescence and pod and A. proxima larvae on plants followed the negative binomial while the predator C. septumpunctata on L. erysimi and the larvae of A. proxima on leaves followed a positive binomial distribution. These parameters will be used to develop sequential sampling plans and economic injury levels for mustard pests. An interesting predator‐prey relationship, where the host is overdispersed and the predator is underdispersed was found, suggesting that this predator can be successfully used to control the aphid population.
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Claims 6
Claim · model-written summary
Lipaphis erysimi on mustard leaves, shoots, inflorescences and pods followed a negative binomial distribution.
- Taxon
- mustardt0
- Interactor
- L. erysimi
Lipaphis erysimie0pest - Outcome
- L. erysimi on leaf, shoot, inflorescence and pode0
- Qualifier
- negative binomiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L. erysimi on leaf, shoot, inflorescence and pod and A. proxima larvae on plants followed the negative binomial”
t0“mustard”
Claim · model-written summary
Athalia proxima larvae on mustard plants followed a negative binomial distribution.
- Taxon
- mustardt0
- Interactor
- A. proximaAthalia proximae0pest
- Outcome
- A. proxima larvae on plantse0
- Qualifier
- negative binomiale0
Verbatim
e0“A. proxima larvae on plants followed the negative binomial”
t0“mustard”
Claim · model-written summary
Coccinella septumpunctata attacking Lipaphis erysimi followed a positive binomial distribution.
- Taxon
- mustardt0
- Interactor
- L. erysimiLipaphis erysimie0pest
- Second interactor
- C. septumpunctatae0biocontrol_agent
- Outcome
- predator C. septumpunctata on L. erysimie0
- Qualifier
- positive binomial distributione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the predator C. septumpunctata on L. erysimi and the larvae of A. proxima on leaves followed a positive binomial distribution.”
t0“mustard”
Claim · model-written summary
Athalia proxima larvae on mustard leaves followed a positive binomial distribution.
- Taxon
- mustardt0
- Interactor
- A. proximaAthalia proximae0pest
- Outcome
- larvae of A. proxima on leavese0
- Qualifier
- positive binomial distributione0
Verbatim
e0“the larvae of A. proxima on leaves followed a positive binomial distribution.”
t0“mustard”
Claim · model-written summary
The aphid was overdispersed while its predator was underdispersed.
- Taxon
- mustardt0
- Interactor
- Lipaphis erysimiLipaphis erysimit1pest
- Second interactor
- Coccinella septumpunctatat1biocontrol_agent
- Outcome
- host is overdispersed and the predator is underdispersede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the host is overdispersed and the predator is underdispersed”
t0“mustard”
t1“Lipaphis erysimi (Kaltenback) and Athalia proxima Klug. and predator Coccinella septumpunctata Linn.”
Claim · model-written summary
The authors suggest the predator can control the aphid population.
Verbatim
e0“this predator can be successfully used to control the aphid population.”
t0“mustard”