Claim · model-written summary
Final A. plutellae populations in cabbage plots treated with GCSC-BtA averaged 23.5 ind./30 plants, about 6 times higher than in methomyl-treated plots.
Brassica oleracea var. capitataVerbatim
e0“the natural enemy populations were, on average, 23.5 ind./30 plants for A. plutellae , 24.6 ind./30 plants for E. graminicol and 12.2 ind./30 plants for C. septempunctata in the plot treated with GCSC‐BtA, about 6, 5 and 3 times higher than for those treated with methomyl”
e1“common head cabbage”
Title
C. Sengonca; B. Liu Anzeiger für Schädlingskunde 2002. doi:10.1046/j.1439-0280.2002.02014.x
Other claims from this paper (13)
- Intervention effect Final P. xylostella populations in cabbage plots treated with GCSC-BtA averaged 39.7, lower than in methomyl-treated plots (about 1.5 times lower).
- Intervention effect Final B. brassicae populations in cabbage plots treated with GCSC-BtA averaged 68.3, lower than in methomyl-treated plots (about 11 times lower).
- Intervention effect Final P. vittata populations in cabbage plots treated with GCSC-BtA averaged 6.2 ind. / 30 plants, lower than in methomyl-treated plots (about 0.7 times lower).
- Intervention effect Final E. graminicol populations in cabbage plots treated with GCSC-BtA averaged 24.6 ind./30 plants, about 5 times higher than in methomyl-treated plots.
- Intervention effect Final C. septempunctata populations in cabbage plots treated with GCSC-BtA averaged 12.2 ind./30 plants, about 3 times higher than in methomyl-treated plots.
- Intervention effect GCSC-BtA gave a final decreasing ratio of 83.60 for P. xylostella in cabbage, compared with 57.63 for methomyl.
- Intervention effect GCSC-BtA gave a final decreasing ratio of 97.05 for B. brassicae in cabbage, compared with 64.89 for methomyl.
- Intervention effect GCSC-BtA gave a final decreasing ratio of 53.67 % for P. vittata in cabbage, compared with 30.88 % for methomyl.
- Intervention effect GCSC-BtA was less toxic to A. plutellae than methomyl: final decreasing ratio 47.68 versus 90.94 relative to control plots.
- Intervention effect GCSC-BtA was less toxic to E. graminicola than methomyl: final decreasing ratio 17.84 versus 80.80 relative to control plots.
- Intervention effect GCSC-BtA was less toxic to C. septempunctata than methomyl: final decreasing ratio 27.81 % versus 74.55 % relative to control plots.
- Recommendation The authors recommend applying GCSC-BtA after mass migration of the pests to the cabbage fields.
- Recommendation The authors recommend using GCSC-BtA to minimize harm to natural enemies within integrated pest management in cabbage fields.
Plutella xylostella