Abstract
Studies on the seasonal population fluctuation of the aphid pests ofcabbage and their predators were undertaken in treated and untreated plots during I994-95 and 1995496 cropping seasons at Pantnagar, North India. In the insecticides treated plots, four sprays of monocrotophos (0.04%) followed by two sprays of endosulfan (0.05%) were given at IO days interval. Three aphid species namely Myzus and Brevicrnyne brassicne Linn. were found to attack this crop. However, M. percicae was the most abundant aphid species. The pcak population of M. persicue was recorded on February l9, I995 (445.6 aphids/S plants) and January 25, I996 (364.20 aphids/5 plants) in untreated plots, while in the treated plots, its peak population occurred on February,12 I995 (70.10 aphids/5 plants) and January ll, I996 (166.70 aphids/5 plants), respectively. The population fluctuation of other aphid species is also discussed. The peak predator population in the untreated plots was in mid-March (2.90 individualsl 5 plants), a month later than in the treated plots (0.90 individuals/5 plants). However, the overall mean predator population in the treated plots (0.32) was significantly lower than that in the untreated plots (L43) during l994-95 cropping season and it was on par during I995-96 cropping season.
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Claims 9
Claim · model-written summary
Untreated plots had a Myzus persicae peak of 445.6 aphids per 5 plants on February 19, 1995.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Interactor
- M. persicuee1pest
- Outcome
- populatione1
- Value
- 445.6 aphids/S plantse1
- Setting
- untreated plotse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE”
e1“The pcak population of M. persicue was recorded on February l9, I995 (445.6 aphids/S plants) and January 25, I996 (364.20 aphids/5 plants)”
e2“in untreated plots”
Claim · model-written summary
Untreated plots had a Myzus persicae peak of 364.20 aphids per 5 plants on January 25, 1996.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Interactor
- M. persicuee1pest
- Outcome
- populatione1
- Value
- 364.20 aphids/5 plantse1
- Setting
- untreated plotse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE”
e1“The pcak population of M. persicue was recorded on February l9, I995 (445.6 aphids/S plants) and January 25, I996 (364.20 aphids/5 plants)”
e2“in untreated plots”
Claim · model-written summary
Treated plots had a Myzus persicae peak of 70.10 aphids per 5 plants on February 12, 1995 after insecticide sprays.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- insecticidese4
- Interactor
- M. persicuee1pest
- Outcome
- populatione3
- Value
- 70.10 aphids/5 plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE”
e1“The pcak population of M. persicue was recorded on February l9, I995 (445.6 aphids/S plants) and January 25, I996 (364.20 aphids/5 plants)”
e3“its peak population occurred on February,12 I995 (70.10 aphids/5 plants) and January ll, I996 (166.70 aphids/5 plants)”
e4“In the insecticides treated plots, four sprays of monocrotophos (0.04%) followed by two sprays of endosulfan (0.05%) were given at IO days interval”
Claim · model-written summary
Treated plots had a Myzus persicae peak of 166.70 aphids per 5 plants on January 11, 1996 after insecticide sprays.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- insecticidese4
- Interactor
- M. persicuee1pest
- Outcome
- populatione3
- Value
- 166.70 aphids/5 plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE”
e1“The pcak population of M. persicue was recorded on February l9, I995 (445.6 aphids/S plants) and January 25, I996 (364.20 aphids/5 plants)”
e3“its peak population occurred on February,12 I995 (70.10 aphids/5 plants) and January ll, I996 (166.70 aphids/5 plants)”
e4“In the insecticides treated plots, four sprays of monocrotophos (0.04%) followed by two sprays of endosulfan (0.05%) were given at IO days interval”
Claim · model-written summary
Untreated plots had a peak predator population of 2.90 individuals per 5 plants in mid-March, a month later than in treated plots.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Interactor
- predatore5biocontrol_agent
- Outcome
- peak predator populatione5
- Value
- 2.90 individualsl 5 plantse5
- Setting
- untreated plotse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE AND THEIR PREDATORS”
e5“The peak predator population in the untreated plots was in mid-March (2.90 individualsl 5 plants), a month later than in the treated plots (0.90 individuals/5 plants)”
Claim · model-written summary
Treated plots had a peak predator population of 0.90 individuals per 5 plants after insecticide sprays.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- insecticidese4
- Interactor
- predatore5biocontrol_agent
- Outcome
- peak predator populatione5
- Value
- 0.90 individuals/5 plantse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE AND THEIR PREDATORS”
e5“The peak predator population in the untreated plots was in mid-March (2.90 individualsl 5 plants), a month later than in the treated plots (0.90 individuals/5 plants)”
e4“In the insecticides treated plots, four sprays of monocrotophos (0.04%) followed by two sprays of endosulfan (0.05%) were given at IO days interval”
Claim · model-written summary
The overall mean predator population was significantly lower in insecticide-treated plots (0.32) than in untreated plots (1.43) in 1994-95.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- insecticidese4
- Interactor
- predatore6biocontrol_agent
- Outcome
- overall mean predator populatione6
- Direction
- lowere6
- Value
- 0.32e6
- Comparator
- untreated plotse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE AND THEIR PREDATORS”
e4“In the insecticides treated plots, four sprays of monocrotophos (0.04%) followed by two sprays of endosulfan (0.05%) were given at IO days interval”
e6“However, the overall mean predator population in the treated plots (0.32) was significantly lower than that in the untreated plots (L43) during l994-95 cropping season and it was on par during I995-96 cropping season”
Claim · model-written summary
In 1995-96 the overall mean predator population was on par between insecticide-treated and untreated plots.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- insecticidese4
- Interactor
- predatore6biocontrol_agent
- Outcome
- overall mean predator populatione6
- Direction
- on pare6
- Qualifier
- during I995-96 cropping seasone6
- Comparator
- untreated plotse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE AND THEIR PREDATORS”
e4“In the insecticides treated plots, four sprays of monocrotophos (0.04%) followed by two sprays of endosulfan (0.05%) were given at IO days interval”
e6“However, the overall mean predator population in the treated plots (0.32) was significantly lower than that in the untreated plots (L43) during l994-95 cropping season and it was on par during I995-96 cropping season”
Claim · model-written summary
Myzus persicae was the most abundant of the aphid species attacking cabbage.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Interactor
- M. percicaee7pest
- Outcome
- most abundant aphid speciese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“APHID PESTS OF CABBAGE”
e7“M. percicae was the most abundant aphid species”
The same questions in other papers
insecticide · pest · Brassica oleracea (wild cabbage)Positive and negative results
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