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The Number of Larval Instars of Dioryctria abietella (D. and S.)1 (Lepidoptera: Phycitidae) in Florida

Published online by Cambridge University Press:  31 May 2012

E. P. Merkel
Affiliation:
Southeastern Forest Experiment Station Forest Service, U. S. Department of Agriculture Lake City, Florida, Research Center

Extract

The larvae of Dioryctria abietella (D. & S.) are among the most destructive pests of the cones of slash pine, Pinus elliottii Engelm., and longleaf pine, Pinus palustris Mill., in the Southern United States. Larval instar data have been particularly useful in laboratory insecticide screening tests where it is essential to use larvae of the same age. The following is a brief account of a test to determine the number of larval instars of D. abietella in Florida.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1962

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References

Dyar, H. G. 1890. The number of molts of lepidopterous larvae. Psyche 5: 420422.CrossRefGoogle Scholar
Ebel, B. H. 1959. Laboratory rearing of a pine cone insect, Dioryctria abietella (D. & S.). J. Econ. Entomol. 52: 561564.CrossRefGoogle Scholar
Lyons, L. A. 1957. Insects affecting seed production in red pine. II. Dioryctria disclusa Heinrich, D. abietella (D. & S.), and D. cambiicola (Dyar) (Lepidoptera: Phycitidae). Canad. Entomol. 89: 7079.CrossRefGoogle Scholar