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Biology of the sorghum earhead bug, Calocoris angustatus (Hemiptera: Miridae) with description of various stages



Biology of the sorghum earhead bug, Calocoris angustatus (Hemiptera: Miridae) with description of various stages



Insect Science and its Application 13(3): 447-457



Detailed biology of the sorghum earhead bug, Calocoris angustatus Lethierry was studied at Dharwad, India during 1979-1981. Egg incubation and nymphal developmental period ranged from 5.6-11.0 and 10.0-17.0 days, respectively. The duration of first, second, third, fourth and fifth nymphal instars was 2.2 to 3.4, 2.3 to 3.0, 2.0 to 2.8, 2.0 to 3.0 and 2.0 to 2.7 days, respectively. The males lived for 8.9 to 17.6 days and females for 12.2 to 21.3 days. Fecundity varied from 57.7 to 267.1 eggs per female. Preoviposition, oviposition and post oviposition periods varied from 1.2 to 2.1, from 7.2 to 14.0 and from 5.0 to 15.8 days, respectively. All the developmental stages of the bug are described.

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Accession: 002311468

Download citation: RISBibTeXText

DOI: 10.1017/s1742758400013758


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