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Life History Characterstics of Lygus elisus in the Laboratory

P.L. Bommireddy, M.N. Parajulee, and D.O. Porter


Life history characteristics of Lygus elisus were studied at 10, 15, 20, 25, 30 and 35 ºC in the laboratory. The developmental duration of Lygus elisus was influenced by temperature. Total nymphal durations were 83.1, 44.2, 29.3, 21.0, 14.3, and 10.8 at 10, 15, 20, 25, 30 and 35 ºC, respectively. The relationships between temperature and total durations were described by the same equation for both males and females. The total nymphal duration did not differ with sex. Sex ratio (proportion of males) of emerging adults of L. elisus did not vary from 1:1 and ranged from 0.46 to 0.64. Instar-specific survival rates also did not differ among all temperatures but total nymphal survival rates varied significantly across the temperatures ranging from 0.41 to 1.00.

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Document last modified 04/27/04