Abstract
The density seasonal dynamics of Bemisia tabaci MED were evaluated over two years in a cotton-growing area in Langfang, Hebei Province, northern China on cotton (Gossypium hirsutum L.) and six other co-occurring common plants, common ragweed (Ambrosia artemisiifolia L.), piemarker (Abutilon theophrasti Medicus), sunflower (Helianthus annuus L.), sweet potato (Ipomoea batatas L.), soybean (Glycine max L.), and maize (Zea mays L.). The whitefly species identity was repeatedly tested and confirmed; seasonal dynamics on the various host plants were standardized by the quartile method. B. tabaci MED appeared on weeds (the common ragweed and piemarker) about 10 days earlier than on cotton, or the other cultivated plants. The peak population densities were observed over a span of 2 to 3 weeks on cotton, starting in early (2010) or mid-August (2011). The common ragweed growing adjacent to cotton supported the highest B. tabaci densities (no. on 100 cm2 leaf surface), 12-22 fold higher than on cotton itself. Sunflower supported more B. tabaci than the other plants, and about 1.5-2 fold higher than cotton did. Our results indicate that weeds (esp. the common ragweed) around cotton fields could increase the population density of B. tabaci MED on cotton, while sunflower could act as a trap crop for decreasing pest pressure on cotton.
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Claims 7
Claim · model-written summary
Bemisia tabaci MED appeared on common ragweed about 10 days earlier than on cotton or other crops.
- Taxon
- common ragweed
Ambrosia artemisiifoliae1 - Interactor
- B. tabaci MED
Bemisia tabacie0pest - Outcome
- B. tabaci MED appearede0
- Value
- 10 dayse0
- Comparator
- cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. tabaci MED appeared on weeds (the common ragweed and piemarker) about 10 days earlier than on cotton, or the other cultivated plants.”
e1“common ragweed (Ambrosia artemisiifolia L.)”
Claim · model-written summary
Bemisia tabaci MED appeared on piemarker about 10 days earlier than on cotton or other crops.
- Taxon
- piemarkere0
- Interactor
- B. tabaci MEDBemisia tabacie0pest
- Outcome
- B. tabaci MED appearede0
- Value
- 10 dayse0
- Comparator
- cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. tabaci MED appeared on weeds (the common ragweed and piemarker) about 10 days earlier than on cotton, or the other cultivated plants.”
Claim · model-written summary
Peak whitefly densities on cotton spanned two to three weeks, beginning in early August 2010 or mid-August 2011.
- Taxon
- cotton
Gossypium hirsutume0 - Interactor
- B. tabaci MEDBemisia tabacie1pest
- Outcome
- peak population densitiese0
- Value
- 2 to 3 weekse0
- Qualifier
- starting in early (2010) or mid-August (2011)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peak population densities were observed over a span of 2 to 3 weeks on cotton, starting in early (2010) or mid-August (2011).”
e1“B. tabaci MED appeared on weeds”
Claim · model-written summary
Common ragweed adjacent to cotton supported the highest whitefly density, 12 to 22 fold above cotton.
- Taxon
- common ragweedAmbrosia artemisiifoliae0
- Interactor
- B. tabaciBemisia tabacie0pest
- Outcome
- B. tabaci densitiese0
- Direction
- highere0
- Value
- 12-22 folde0
- Comparator
- cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The common ragweed growing adjacent to cotton supported the highest B. tabaci densities (no. on 100 cm2 leaf surface), 12-22 fold higher than on cotton itself.”
Claim · model-written summary
Sunflower supported about 1.5 to 2 fold more whiteflies than cotton and more than the other plants.
- Taxon
- Sunflower
Helianthus annuuse0 - Interactor
- B. tabaciBemisia tabacie0pest
- Outcome
- B. tabacie0
- Direction
- highere0
- Value
- 1.5-2 folde0
- Comparator
- cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower supported more B. tabaci than the other plants, and about 1.5-2 fold higher than cotton did.”
Claim · model-written summary
Weeds around cotton fields could increase Bemisia tabaci MED density on cotton.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- B. tabaci MEDBemisia tabacie0pest
- Second interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- population density of B. tabaci MED on cottone0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weeds (esp. the common ragweed) around cotton fields could increase the population density of B. tabaci MED on cotton”
Claim · model-written summary
Sunflower could function as a trap crop and decrease whitefly pressure on cotton.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- B. tabaci MEDBemisia tabacie1pest
- Outcome
- sunflower could act as a trap crop for decreasing pest pressure on cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sunflower could act as a trap crop for decreasing pest pressure on cotton”
e1“B. tabaci MED on cotton”