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| Author(s): | Mailloux, G.;
Streu, H. T. |
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| Author Affiliation: | Station de Recherche en Defense des Cultures, Ministere de l'Agriculture, des Pecheries et de l'Alimentation du Quebec, L'Assomption J0K 1G0, Canada |
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| Title: | Population biology of the hairy chinch bug (Blissus leucopterus hirtus, Montandon: Hemiptera: Lygaeidae) |
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| Source: | Annals of the Entomological Society of Quebec. Vol. 26, No. 1, 1981, p. 51-90. |
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| Keywords: | TIC Keywords: Biological control; Blissus leucopterus; Fungi; Beauveria bassiana; Eumicrosoma benefica; Blissus leucopterus hirtus; Poa pratensis; Festuca rubra subsp. rubra
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| Geographic Terms: | New Jersey |
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| Abstract/Contents: | From studies on the population biology of Blissus leucopterus hirtus Montd. on turf in New Jersey composed of Poa pratensis and Festuca rubra, population estimates for all stages in the life-history of the lygaeid throughout 1974 are given. There were 2 generations a year, and overwintering took place in the adult stage. Adults of the overwintering generation became active when the temperature rose above 7 deg C, and immediately began to feed and mate. Overwintered females oviposited from the third week of April until the end of May, and those of the summer generation from the third week of July to the end of August. The fecundity of females averaged 15.6 eggs/female for the spring generation and 6.9 for the summer one. There were 5 nymphal instars, which are described. Some of the adults were macropters that migrated to other areas of turf. Second-generation nymphs completed their development in early October and the adults overwintered in the turfgrass thatch. The field population peak and mean numbers at each stage were correlated with temperature sums above 14.6 deg C, the threshold for egg development. Among natural enemies of the lygaeid were the parasite Eumicrosoma beneficum Gah., the fungus Beauveria bassiana and the predacious carabid Amara sp. Other factors affecting mortality at the egg stage were desiccation, failure to hatch, and mortality at eclosion caused by the wet condition or the thatch. Egg mortality averaged 59% in the spring generation and 48% in summer; adult mortality in winter averaged 68% in 1974 and 28% in 1975. |
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| Language: | English |
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| References: | 51 |
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| Note: | Summary appears in French
Figures |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mailloux, G., and H. T. Streu. 1981. Population biology of the hairy chinch bug (Blissus leucopterus hirtus, Montandon: Hemiptera: Lygaeidae). Ann. Entomol. Soc. Quebec. 26(1):p. 51-90. |
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