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AN ENERGY BUDGET FOR MAMESTRA CONFIGURATA (LEPIDOPTERA: NOCTUIDAE)

1977; Cambridge University Press; Volume: 109; Issue: 5 Linguagem: Inglês

10.4039/ent109687-5

1918-3240

C. G. Bailey, N. B. Singh,

Economic and Environmental Valuation

Abstract An energy budget was evaluated for the bertha army worm, Mamestra configurata (Walker), over its life cycle. Cumulative values for the budget at the end of larval development were: ingestion, 2124 cal; respiration, 372 cal; production, 485 cal; and egestion, 1266 cal. The sixth instar larva accounted for 80.1, 83.2, 81.3, and 78.8% of the total energy in ingestion, respiration, production, and egestion, respectively, during its development. Assimilation efficiency varied from 35.5 to 44.4% with a mean of 40.6%, gross production efficiency varied from 16.6 to 23.8% with a mean of 21.3%, and net production efficiency varied from 37.5 to 61.3% with a mean of 52.7%.