Calligrapha bicolorata: Difference between revisions
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'''''Zygogramma bicolorata''''', variously referred to as the '''Parthenium beetle''' or '''Mexican beetle''', is a species of leaf beetle in the subfamily Chrysomelinae, native to Mexico, but introduced to India in 1984 to control ''[[Parthenium hysterophorus]]'', a noxious weed.[http://www.nbaii.res.in/Featured%20insects/Zygogramma.htm] |
'''''Zygogramma bicolorata''''', variously referred to as the '''Parthenium beetle''' or '''Mexican beetle''', is a species of leaf beetle in the subfamily Chrysomelinae, native to Mexico, but introduced to India in 1984 to control ''[[Parthenium hysterophorus]]'', a noxious weed.[http://web.archive.org/web/20130820082000/http://www.nbaii.res.in:80/Featured%20insects/Zygogramma.htm] |
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== Life cycle == |
== Life cycle == |
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== References == |
== References == |
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* [http://www.nbaii.res.in/Featured%20insects/Zygogramma.htm nbaii.res.in] |
* [http://web.archive.org/web/20130820082000/http://www.nbaii.res.in:80/Featured%20insects/Zygogramma.htm nbaii.res.in] |
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[[Category:Biological pest control beetles]] |
[[Category:Biological pest control beetles]] |
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Revision as of 19:09, 21 July 2016
 | This article needs additional citations for verification. (June 2014) |
| Calligrapha bicolorata | |
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| Species: | Z. bicolorata
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| Binomial name | |
| Zygogramma bicolorata Pallister, 1953
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Zygogramma bicolorata, variously referred to as the Parthenium beetle or Mexican beetle, is a species of leaf beetle in the subfamily Chrysomelinae, native to Mexico, but introduced to India in 1984 to control Parthenium hysterophorus, a noxious weed.[1]
Life cycle
The larvae feed for 10 to 15 days on leaves and on maturity enter the soil and pupate below up to 15 cm depth. The adult beetles emerge after eight to 12 days and complete their life cycle in 27 to 32 days. Both the adults and larvae are capable of feeding on the Parthenium leaves thus checking the plant growth and flower production. Immature flowers are cut by the beetles in an effort to chew the soft tissues beneath the flowers. Plants may be completely defoliated at times.
Use as biocontrol
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