Abstract
Hard-bodied orthopteran adults, in particular Acrididae, are an important source of insect contaminants in mechanically harvested leafy greens, Brassica spp. Because contaminants are usually detected after greens are fully processed, rejection of these value-added loads can be economically severe. A survey was conducted to determine the level of orthopteran species occurring in and around leafy greens fields prior to mechanical harvesting. This survey demonstrated that the vast majority of individual Orthoptera occurred around the edges of the field prior to harvest. In the second year of the survey, growers were already applying Sevin XLR™ (Aventis CropScience, Research Trangle Park, NC) insecticide to grassy border areas in order to prevent acridid adults from moving into the field before harvest. The main taxonomic groups in Orthoptera found in this survey included Orchelimum sp. (Tettigonidae) (68.8%), Melanoplinae (Acrididae) (18.5%), other Acrididae (5.4%), Schistocerca americana (Drury) (Acrididae) (3.4%), Dissosteira Carolina (Linnaeus) (Acrididae) (2.4%), and other Tettigonidae (1.6%). Insecticide treatment of border areas prior to harvest provided a 94% reduction in Acrididae in the field prior to harvest.
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Claims 8
Claim · model-written summary
Most Orthoptera occurred around field edges before harvest.
- Taxon
- Leafy Greenst0
- Interactor
- OrthopteraOrthopterae0pest
- Outcome
- individual Orthoptera occurred around the edges of the fielde0
Verbatim
t0“Leafy Greens”
e0“the vast majority of individual Orthoptera occurred around the edges of the field prior to harvest”
Claim · model-written summary
Orchelimum sp. accounted for 68.8% of the Orthoptera found.
- Taxon
- Orchelimum sp.
_(14937123039).jpg?width=60)
Orchelimume0 - Outcome
- Orchelimum sp.e0
- Value
- 68.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(14937123039).jpg?width=500)
Verbatim
t0“Leafy Greens”
e0“Orchelimum sp. (Tettigonidae) (68.8%)”
Claim · model-written summary
Melanoplinae accounted for 18.5% of Orthoptera found.
- Taxon
- MelanoplinaeMelanoplinaee0
- Outcome
- Melanoplinaee0
- Value
- 18.5%e0
Verbatim
t0“Leafy Greens”
e0“Melanoplinae (Acrididae) (18.5%)”
Claim · model-written summary
Other Acrididae accounted for 5.4%.
Verbatim
t0“Leafy Greens”
e0“other Acrididae (5.4%)”
Claim · model-written summary
Schistocerca americana accounted for 3.4%.
- Taxon
- Schistocerca americana
Schistocerca americanae0 - Outcome
- Schistocerca americanae0
- Value
- 3.4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Leafy Greens”
e0“Schistocerca americana (Drury) (Acrididae) (3.4%)”
Claim · model-written summary
Dissosteira Carolina accounted for 2.4%.
- Taxon
- Dissosteira Carolina
Dissosteira carolinae0 - Outcome
- Dissosteira Carolinae0
- Value
- 2.4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Leafy Greens”
e0“Dissosteira Carolina (Linnaeus) (Acrididae) (2.4%)”
Claim · model-written summary
Other Tettigonidae accounted for 1.6%.
Verbatim
t0“Leafy Greens”
e0“other Tettigonidae (1.6%)”
Claim · model-written summary
Border insecticide treatment reduced field Acrididae by 94% before harvest.
- Taxon
- Leafy Greenst0
- Treatment
- Insecticide treatment of border arease0
- Outcome
- Acrididae in the fielde0
- Direction
- reductione0
- Value
- 94%e0
Not reportedComparator
Verbatim
t0“Leafy Greens”
e0“Insecticide treatment of border areas prior to harvest provided a 94% reduction in Acrididae in the field prior to harvest”