NDLI: Influence of Temperature Variation on Reproductive Attributes of Zygograma Bicolorata (coleoptera: Chrysomelidae) a Potential Biocontrol Agent of Weed Parthenium Hystorophorus

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Influence of Temperature Variation on Reproductive Attributes of Zygograma Bicolorata (coleoptera: Chrysomelidae) a Potential Biocontrol Agent of Weed Parthenium Hystorophorus

Content Provider	Semantic Scholar
Author	Raja, R. Raja R. Ijrbat
Copyright Year	2014
Abstract	The exotic beetle Zygogramma bicolorata is an effective biological control agent of Parthenium hysterophorus in India as it feeds mainly on this weed. In the present study the stress of high and low temperature (200C & 350C) as compared to normal (Control at 270C) on the reproductive performance and different life cycle stages of the Mexican beetle Zygograma bicolorata was investigated. Potential fecundity (number of eggs matured) and realized fecundity (number of eggs laid) are both influenced by temperature variation. Fecundity and percent egg viability increased significantly with increase in the temperature from 200C to 27oC and thereafter declined with further increase in temperature. The development and survival of different life stages were also recorded and egg hatching (in days), larval period, pupal period were affected by the temperature variation. The ideal temperature range for the maximum egg laying, high percentage of egg hatching, maximum survival and complete development were recorded at 270C. These findings may be useful in mass rearing of the beetle in laboratory condition.
File Format	PDF HTM / HTML
DOI	10.29369/ijrbat.2014.02.ii.0076
Alternate Webpage(s)	https://www.ijrbat.in/upload_papers/2705201705404462.pdf
Alternate Webpage(s)	https://doi.org/10.29369/ijrbat.2014.02.ii.0076
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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