Innate differences in consumption and utilization of food by the fast- and slow-growing larvae of cabbage looper, Trichoplusia ni (Hübner) (Lep., Noctuidae)

Sharma, H C and Norris, D M (1993) Innate differences in consumption and utilization of food by the fast- and slow-growing larvae of cabbage looper, Trichoplusia ni (Hübner) (Lep., Noctuidae). Journal of Applied Entomology, 116 (1-5). pp. 527-531. ISSN 0931-2048

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Abstract

Consumption and utilization of soybean leaves by the fast versus slow-growing larvae of the cabbage looper, Trichoplusia ni were studied under laboratory conditions. Fast-growing larvae consumed more food/unit of body mass, and gained weight 10 times faster than the slow-growing larvae. Slow-growing larvae were less efficient in consumption and utilization of food, and the differences in indices of food utilization were greater between the fast- and slow-growing larvae on the relatively resistant soybean cultivar, “PI 227687” than on the susceptible cultivar, “Davis”. Implications of differences in growth rates and food utilization by the fast- and slow-growing larvae on resistant and susceptible cultivars are discussed in relation to evolution of new biotypes and host-plant resistance.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Others > Food and Nutrition
Depositing User: Mr Charan Sai Ch
Date Deposited: 22 Oct 2011 06:35
Last Modified: 22 Oct 2011 06:35
URI: http://oar.icrisat.org/id/eprint/2958
Official URL: http://dx.doi.org/10.1111/j.1439-0418.1993.tb01231...
Projects: UNSPECIFIED
Funders: United States Agency for International Development
Acknowledgement: This research was supported by the College of Agricultural and Life Sciences, University of Wisconsin, Madison; and in part by funds from U.S. Hatch Project No. 2786, and 3040, CRGOI USDA Research Grant No. 84-CRCR-1-1501 and No. 88-37153-4043 and the Univcrsity of Wisconsin A.1.D.Title XII strengthening grant. Approved as J.A.No.1186 by ICRISAT.
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