Abstract
This study evaluates the incidence and severity of Lygus infestations in faba bean fields across Saskatchewan from 2019 to 2023. Surveys were conducted in collaboration with Saskatchewan Pulse Growers, the Saskatchewan Ministry of Agriculture, and the Entomology Laboratory of the University of Saskatchewan. Lygus insects were collected using standard sweep nets at BBCH 72 stage of faba bean growth. Environmental data, including cumulative degree days, total precipitation, and geographical variables, such as soil climatic zones and crop district, were integrated to assess their influence on Lygus species composition and abundance. Statistical analyses, including PERMANOVA and non-metric multidimensional scaling, revealed that year significantly influenced Lygus community composition, accounting for 22.77% of the variation. A significant interaction between year and crop district explained 40.74% of the variation. Generalized linear mixed models showed species-specific responses to environmental factors: Lygus lineolaris showed a significant association with cumulative degree days and total precipitation, while Lygus borealis and L. elisus responded more to soil climatic zones and precipitation. In contrast, Lygus keltoni exhibited weaker responses to both temperature and precipitation. This study highlights the complex relationships between climate, geographic conditions, and species distribution, providing valuable insights for improving Lygus management in faba bean crops.
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Claims 6
Claim · model-written summary
Year explained 22.77% of variation in Lygus community composition in faba bean fields.
- Taxon
- faba bean
Vicia fabat0 - Outcome
- Lygus community compositione0
- Value
- 22.77%e0
- Setting
- yeare0
.jpg?width=60){kind=small}
LygusNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“year significantly influenced Lygus community composition, accounting for 22.77% of the variation”
t0“faba bean fields”
Claim · model-written summary
The year by crop district interaction explained 40.74% of Lygus community variation.
- Taxon
- faba beanVicia fabat0
- Outcome
- variatione0
- Value
- 40.74%e0
- Setting
- year and crop districte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant interaction between year and crop district explained 40.74% of the variation”
t0“faba bean fields”
Claim · model-written summary
Lygus lineolaris abundance was associated with cumulative degree days and total precipitation.
- Taxon
- faba beanVicia fabat0
- Interactor
- Lygus lineolaris
Lygus lineolarise0pest - Outcome
- Lygus lineolarise0
- Setting
- cumulative degree days and total precipitatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lygus lineolaris showed a significant association with cumulative degree days and total precipitation”
t0“faba bean fields”
Claim · model-written summary
Lygus borealis responded more to soil climatic zones and precipitation.
- Taxon
- faba beanVicia fabat0
- Interactor
- Lygus borealisLygus borealise0pest
- Outcome
- Lygus borealise0
- Setting
- soil climatic zones and precipitatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lygus borealis and L. elisus responded more to soil climatic zones and precipitation”
t0“faba bean fields”
Claim · model-written summary
L. elisus responded more to soil climatic zones and precipitation.
- Taxon
- faba beanVicia fabat0
- Interactor
- L. elisus
Lygus elisuse0pest - Outcome
- L. elisuse0
- Setting
- soil climatic zones and precipitatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lygus borealis and L. elisus responded more to soil climatic zones and precipitation”
t0“faba bean fields”
Claim · model-written summary
Lygus keltoni showed weaker responses to temperature and precipitation.
- Taxon
- faba beanVicia fabat0
- Interactor
- Lygus keltoniLygus keltonie0pest
- Outcome
- Lygus keltonie0
- Direction
- weakere0
- Setting
- temperature and precipitatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lygus keltoni exhibited weaker responses to both temperature and precipitation”
t0“faba bean fields”