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Studies on the biology of grain aphid sitobion avenae (Fabricius) (Aphididae : Homoptera) on wheat

By: Material type: TextTextPublication details: Ludhiana PAU 1991Edition: EntomologyDescription: 47,5LSubject(s): DDC classification:
  • T 633.119.752 S15S
Summary: The mean length of cornicles, cauda, antennae and body was 0.41, 032, 1.62 and 2.15 mm respectively The total nymphal duration of alate and apterous forms was 110 and 10.9 days in February and 10.2 and 10.4 days in March respectively The pre-reproductive,
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The mean length of cornicles, cauda, antennae and body was 0.41, 032, 1.62 and 2.15 mm respectively The total nymphal duration of alate and apterous forms was 110 and 10.9 days in February and 10.2 and 10.4 days in March respectively The pre-reproductive,

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