Abstract
[Objective]The aim was to analyze the important factors that influenced the occurrence and harm degree of Athetis lepigone. [Method ]The important factors that influenced the occurrence and harm degree of Athetis lepigone were analyzed, by analyzing rainfall and other meteorological factors during major generations in recent years. [Result] The results showed that the key factor determining the number of larvae was the high moisture in the field of llater period of wheat growth, especially the rainfall during the peak period of the first generation adults, and the period of eggs hatching and young larvae of the second generation. If rain period was highly in accordance with the peak period of the first generation adults, their egg laying amount increased significantly. And if rainfall period was coincidence with period of egg hatching and young larvae, egg hatching rate and survival rate would be increased significantly.But if the rain was too heavy, leading to severe field water and flood time was too long, the larvae from low age to the fourth age would be drowned. So the field damage rate of plant reduced. That the main damage generation larvae damaged corn seedlings was also affected by the degree of straw rotten, and straw rotten degree was affected by rainfall time, rain days and rainfall. If rainfall began from May, rainfall was high in June and rain days were more, straw rotten would quicken, the structure of field straw heapwould be changed, and compacted to be seamless. The seamless structure affected hiding, laying lay eggs of adults,and soil humus. This provided rich food for Athetis lepigone, thus reduced the damaged rate to corn seedling. [Conclusion] Dark and humid environment was conducive to occurrence and damage of Athetis lepigone.
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Claims 8
Claim · model-written summary
High moisture late in wheat growth was a key determinant of larval number.
- Taxon
- wheat
Triticum aestivumt0 - Interactor
- Athetis lepigone
.jpg?width=60)
Athetis lepigonet1peste0 - Outcome
- number of larvaee0
- Direction
- highe0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the key factor determining the number of larvae was the high moisture in the field of llater period of wheat growth”
t0“wheat growth”
t1“Athetis lepigone”
Claim · model-written summary
Rain coinciding with peak first-generation adults significantly increased egg laying.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- egg laying amounte0
- Direction
- increasede0
- Qualifier
- rain period was highly in accordance with the peak period of the first generation adultse0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If rain period was highly in accordance with the peak period of the first generation adults, their egg laying amount increased significantly”
t0“wheat growth”
Claim · model-written summary
Rain during egg hatching and young larvae significantly increased hatching and survival.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- egg hatching rate and survival ratee0
- Direction
- increasede0
- Qualifier
- rainfall period was coincidence with period of egg hatching and young larvaee0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“if rainfall period was coincidence with period of egg hatching and young larvae, egg hatching rate and survival rate would be increased significantly”
t0“wheat growth”
Claim · model-written summary
Prolonged flooding drowned young to fourth-instar larvae.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- larvae from low age to the fourth agee0
- Direction
- drownede0
- Qualifier
- flood time was too longe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“if the rain was too heavy, leading to severe field water and flood time was too long, the larvae from low age to the fourth age would be drowned”
t0“wheat growth”
Claim · model-written summary
Prolonged flooding reduced plant damage rate.
Verbatim
e0“So the field damage rate of plant reduced”
Claim · model-written summary
Straw decomposition affected larval damage to corn seedlings.
- Taxon
- corn
Zea mays subsp. mayse0 - Outcome
- damage generation larvae damaged corn seedlingse0
- Direction
- affectede0
- Qualifier
- degree of straw rottene0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main damage generation larvae damaged corn seedlings was also affected by the degree of straw rotten”
Claim · model-written summary
Rain beginning in May with high June rainfall and more rain days accelerated straw decomposition.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- straw rottene0
- Direction
- quickene0
- Qualifier
- rainfall began from May, rainfall was high in June and rain days were moree0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“If rainfall began from May, rainfall was high in June and rain days were more, straw rotten would quicken”
e1“reduced the damaged rate to corn seedling”
Claim · model-written summary
The resulting compact straw structure reduced damage to corn seedlings.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- Athetis lepigoneAthetis lepigonee0pest
- Outcome
- damaged rate to corn seedlinge0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This provided rich food for Athetis lepigone, thus reduced the damaged rate to corn seedling”