10.04.2013 Views

Introduction to aphids.pdf - NJF

Introduction to aphids.pdf - NJF

Introduction to aphids.pdf - NJF

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Life cycles<br />

• The aphid life cycles can be devided in<strong>to</strong><br />

• 1. Holocyclical - the cycle starts and ends with an egg.<br />

• 2. Anholocyclical - a continuous production of parthenogenetic females<br />

where sexual reproduction never or very rarely occurs.<br />

• The life cycles can also be devived in<strong>to</strong><br />

• 1.Monoecious - no host alternation occurs<br />

• 2.Heteroecious - where a regular host alternation occurs

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!