Convergent Lady Beetle

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Natural Enemies of Insects Convergent Lady Beetle The convergent lady beetle (Hippodamia convergens) is often the insect predator that is most commonly noted in hemp. One of about 80 species of lady beetles found in Colorado this native insect can be found in almost any crop grown in the state. The stage that survives winter is the adult “ladybug” form, which become active in late spring. Where they find sources of food for their young – Adult (upper left) and larva (lower right) of the typically colonies of aphids – they will convergent lady beetle lay eggs. The eggs, laid on leaves and stems in the form of small masses (ca. 5-30), are yellow and spindle-shaped. The larvae that hatch from the eggs are grayish with prominent eggs and they search plants for prey. Later stage larvae are often marked with yellow or orange and may have purplish background colors. The larvae are generalist predators that feed on small insects such as aphids, leafhopper nymphs, plant bugs, and young larvae of caterpillars or beetles. Through most of the growing season all stages of this insect may be present (eggs, larvae, pupae, adults) although the highly visible adults are usually the only stage one may notice in the crop. The multicolored Asian lady beetle (Harmonia axyridis) and the sevenspotted lady beetle (Coccinella septempunctata) have also been observed to develop within hemp fields when large numbers of aphids are present. Pupa (top) and late stage larvae of convergent lady beetle Coleoptera: Coccinellidae Lady beetle egg mass .

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Article (Refereed) - Postprint
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by NERC Open Research Archive Article (refereed) - postprint Grez, Audrey A.; Zaviezo, Tania; Roy, Helen E.; Brown, Peter M.J.; Segura, Bernardo. 2017. In the shadow of the condor: invasive Harmonia axyridis found at very high altitude in the Chilean Andes. Insect Conservation and Diversity, 10 (6). 483-487. https://doi.org/10.1111/icad.12258 © 2017 The Royal Entomological Society This version available http://nora.nerc.ac.uk/id/eprint/518682/ NERC has developed NORA to enable users to access research outputs wholly or partially funded by NERC. Copyright and other rights for material on this site are retained by the rights owners. Users should read the terms and conditions of use of this material at http://nora.nerc.ac.uk/policies.html#access This document is the author’s final manuscript version of the journal article, incorporating any revisions agreed during the peer review process. Some differences between this and the publisher’s version remain. You are advised to consult the publisher’s version if you wish to cite from this article. The definitive version is available at http://dx.doi.org/10.1111/icad.12258 Contact CEH NORA team at [email protected] The NERC and CEH trademarks and logos (‘the Trademarks’) are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. 1 In the shadow of the condor: Invasive Harmonia axyridis found at very high 2 altitude in the Chilean
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