| 摘要: |
| 采用田间网捕和室内外饲养等方法研究了关中大蒜根蛆葱地种蝇(葱蝇)Delia antigua(Meigen)和灰地种蝇(种蝇)D.platura(Meigen)的生活史与发生规律。优势种葱蝇一年发生3代,以围蛹在土中越冬。世代历期:室内36. 5～59. 5 d,田间32～74 d.其年生活史可分为春季为害、越夏、秋季为害和越冬4个阶段,以春季第1代为害最重,是造成大蒜减产的主要原因。混合种群为害程度受5 cm土壤温度及含水量、大蒜生育期和施肥的影响。 |
| 关键词: 大蒜，葱蝇，种蝇，生活史，为害规律 |
| DOI： |
| 分类号:S436.33 |
| 基金项目:陕西省科委攻关项目 |
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| Life History and Population Dynamics of Delia antiqua(Meigen) and D.platura(Meigen) in Garlic in Central Shaanxi |
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| Abstract: |
| The life history and population dynamics of Delia antiqua(Meigen) and
D.platura(Meigen) in garlic in Central Shaanxi were studied by means of indoor rearing and field survey.D.antiquais the predominant species and has 3 generations a year,over wintering as puparium (coarctate pupa) in soil. The duration of each generation is
33. 5～66. 7 d.The life history of D.antiqua could be divided into 4 periods: spring damaging, over summering, autumn damaging and over wintering.The first generation causes
the most serious damage to garlic in spring.Dynamics and damaging of the mixed population of the 2 species are deeply affected by the temperature andmoisture of soil at 5cm
deepth, by growth stage of garlic and by fertilizer. |
| Key words: garlic,Delia antiqua(Meigen),Delia plature(Meigen), life history,population dynam ics |
