The winter development, reproduction and lifespan of viviparae of Sitobion avenae (F.) (Hemiptera: Aphididae) on wheat in England
Williams, C.T.
The winter development, reproduction and lifespan of viviparae of Sitobion avenae (F.) (Hemiptera: Aphididae) on wheat in England - 1987 - Printed
Tables, graphs, references p. 33-34
Viviparae of Sitobion avenae in clip-cages on winter wheat in field plots insouthern England were monitored throughout the 1980-81 winter to determine characteristics of development, reproduction and lifespan under winter conditions. Rate-temperature relationships for development and reproduction werewell described by straight lines when temperatures were measured above 3øC. A simple thermal-time scale could therefore be used for both processes. The parental morph and the time of year modified thermal-time requirements for the production of an adult's first 20 nymphs but did not affect those for development. For both alatae and apterae, nymph production per
English
Barley yellow dwarf virus
England
Parasitism
Sitobion
Winter crops
Triticum
Wheat
The winter development, reproduction and lifespan of viviparae of Sitobion avenae (F.) (Hemiptera: Aphididae) on wheat in England - 1987 - Printed
Tables, graphs, references p. 33-34
Viviparae of Sitobion avenae in clip-cages on winter wheat in field plots insouthern England were monitored throughout the 1980-81 winter to determine characteristics of development, reproduction and lifespan under winter conditions. Rate-temperature relationships for development and reproduction werewell described by straight lines when temperatures were measured above 3øC. A simple thermal-time scale could therefore be used for both processes. The parental morph and the time of year modified thermal-time requirements for the production of an adult's first 20 nymphs but did not affect those for development. For both alatae and apterae, nymph production per
English
Barley yellow dwarf virus
England
Parasitism
Sitobion
Winter crops
Triticum
Wheat