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Introduction to aphids.pdf - NJF

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Alate forms<br />

• Emigrants (spring migrants) - Winged parthenogenetic females developing on<br />

the primary host and fly <strong>to</strong> the secondary host.<br />

• Alate alienicolae - Winged parthenogenetic females developing on the secondary<br />

host and fly <strong>to</strong> the secondary host.<br />

• Immigrants (autumne migrants) - Winged parthenogenetic females developing<br />

on the secondary host and fly <strong>to</strong> the primary host.<br />

– Winged males<br />

– Gynoparae- larvae becomes oviparous females<br />

– Androparae- larvae becomes apterous males<br />

– Sexuparae- larvae becomes apterous males and oviparous females

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