Weight Change of Overwintering Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) Pupae in the Georgia Piedmont and Coastal Plain

Parasitism of the Nantucket pine tip moth, Rhyacionia frustrana (Comstock), was studied for four consecutive generations in the Georgia coastal plain by collecting tip moth-infested shoots and rearing adult moths and parasitoids. Nineteen species of parasitoids were collected. Based on numbers of emerging adults, the overall tip moth parasitism rate was 44.8%. Lixophaga mediocris Aid rich, Eurytoma pini Bugbee, and Hyssopus rhyacioniae Gahan were the most abundant parasitoids, accounting for 36.3%, 25.4%, and 11.7% of parasitism, respectively. Parasitism was highest in the summer, 1996, and spring, 1997, generations, and lowest in the 1996–97 overwintering generation. Emergence curves of L. mediocris and Hy. rhyacioniae overlapped that of R. frustrana considerably. Examination of unemerged tip moth pupae and parasitoid puparia indicated that E. pini was predominately hyperparasitic. The parasitoid complex in the coastal plain was different from that in the Georgia Piedmont Plateau and from other published reports of tip moth natural enemies.

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The subenvelope map as a tool for delineating linear features in the Georgia Piedmont and coastal plain

Open-File Report ◽

10.3133/ofr77695 ◽

1977 ◽

Author(s):

Larry Mayer ◽

David C. Prowell ◽

Juergen Reinhardt

Keyword(s):

Coastal Plain ◽

Linear Features ◽

Georgia Piedmont

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Performance of Livingston Parish Loblolly Pine in the Georgia Piedmont

Southern Journal of Applied Forestry ◽

10.1093/sjaf/10.2.84 ◽

1986 ◽

Vol 10 (2) ◽

pp. 84-87

Author(s):

H. R. Powers

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Coastal Plain ◽

Source Material ◽

Atlantic Coastal Plain ◽

Rust Disease ◽

Fusiform Rust ◽

Pinus Taeda L ◽

Georgia Piedmont ◽

Atlantic Coastal

Abstract Seedlings of Livingston Parish (Louisiana) loblolly pine (Pinus taeda L.) have been widely used across the Gulf and south Atlantic Coastal Plain to reduce the damage caused by the fusiform rust disease. Since this seed-source material provided the first rust-resistant seedlings available to forestland managers, it was used wherever rust damage was heavy, in some cases into the Piedmont north of the recommended area of planting. This paper evaluates the performance of ten-year-old Livingston Parish trees in such an area. The rust resistance of the Livingston Parish trees was outstanding, with 83% being free of disease as compared with only 14% of the commercial controls. There was no difference in growth between the two groups of trees, and ice breakage was not significantly greater in the Livingston Parish trees. South. J. Appl. For. 10:84-87, May 1986.

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Revision of a Timing Model for Chemical Control of the Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) in the Southeastern Coastal Plain

Journal of Entomological Science ◽

10.18474/0749-8004-33.4.336 ◽

1998 ◽

Vol 33 (4) ◽

pp. 336-342 ◽

Cited By ~ 3

Author(s):

Christopher J. Fettig ◽

C. Wayne Berisford ◽

Mark J. Dalusky

Keyword(s):

United States ◽

Coastal Plain ◽

Control Analysis ◽

Eastern United States ◽

Degree Day ◽

Timing Model ◽

Nantucket Pine Tip Moth ◽

Rhyacionia Frustrana ◽

Southeastern Coastal Plain ◽

Spray Timing

The Nantucket pine tip moth, Rhyacionia frustrana (Comstock) (Lepidoptera: Tortricidae), is a common pest of Christmas tree and commercial pine plantations in the eastern United States (Yates et al. 1981). During the mid-1980's, a spray timing model for contact insecticides was developed to predict optimal spray dates for controlling R. frustrana in the southeastern Coastal Plain (Gargiullo et al. 1985). Although the model provided for generally acceptable control, analysis of the original degree-day predictions revealed that some errors occur in degree-day accumulation values used to predict insecticide spray dates. We report here the corrected values for both within-generation and cumulative year-long spray date predictions to control R. frustrana in locations where four generations occur annually in the southeastern United States. A similar model for the Piedmont region of Georgia where three generations occur annually accurately predicts spray dates in its current version (Gargiullo et al. 1983).

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Comparison of Scotch Pine Christmas Tree Varieties in Virginia

Southern Journal of Applied Forestry ◽

10.1093/sjaf/21.2.57 ◽

1997 ◽

Vol 21 (2) ◽

pp. 57-63

Author(s):

James E. Johnson ◽

Richard E. Kreh ◽

John L. Torbert

Keyword(s):

Coastal Plain ◽

Effective Control ◽

Christmas Tree ◽

Scotch Pine ◽

Growing Seasons ◽

Seed Sources ◽

Nantucket Pine Tip Moth ◽

Pine Trees ◽

Tree Quality ◽

Special Strain

Abstract Scotch pine (Pinus sylvestris) is a popular Christmas tree species throughout the country, but it is not widely grown in the southern United States. Many of the physical characteristics that influence Christmas tree quality are genetically influenced and vary with seed source. A study was established in Virginia to investigate Christmas tree marketability and quality from 17 commercial seed sources of Scotch pine. Nine test plantations, three each in the western mountains, Piedmont, and Coastal Plain, were established in 1987 and cultured for eight growing seasons. The study was terminated in the winter of 1995. Many differences were found in measured variables between seed sources and regions of the state, however, there were no significant source x region interactions. Four sources emerged as the top performers based on a tree value index: Lower Austria, Musser Special Strain, Belgium Campine, and Pennspanish. Two of these, the Musser and Pennspanish, are improved sources that have been selected for desirable Christmas tree traits. Although Scotch pine trees had greater heights and marketability factors in the western mountains of Virginia, the trees that became marketable in 8 years in the Piedmont and Coastal Plain had a mean USDA Tree Grade significantly lower than in the mountains. The Coastal Plain trees suffered reduced marketability due to Nantucket pine tip moth damage. Effective control of this pest would greatly improve the marketability of Scotch pine trees in the Coastal Plain. South. J. Appl. For. 21(2):57-63.

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Prediction of Optimal Timing for Chemical Control of the Nantucket Pine Tip Moth,Rhyacionia frustrana(Comstock) (Lepidoptera: Tortricidae), in the Southeastern Coastal Plain

Journal of Economic Entomology ◽

10.1093/jee/78.1.148 ◽

1985 ◽

Vol 78 (1) ◽

pp. 148-154 ◽

Cited By ~ 8

Author(s):

Paul M. Gargiullo ◽

Wayne C. Berisford ◽

John F. Godbee

Keyword(s):

Coastal Plain ◽

Chemical Control ◽

Optimal Timing ◽

Nantucket Pine Tip Moth ◽

Rhyacionia Frustrana ◽

Southeastern Coastal Plain

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ABUNDANCE AND PARASITIC HABITS OF SOME PARASITOIDS OF THE NANTUCKET PINE TIP MOTH (LEPIDOPTERA: TORTRICIDAE)

The Canadian Entomologist ◽

10.4039/ent111509-4 ◽

1979 ◽

Vol 111 (4) ◽

pp. 509-514 ◽

Cited By ~ 3

Author(s):

Barry L. Freeman ◽

C. Wayne Berisford

Keyword(s):

Emerging Adults ◽

Broad Spectrum ◽

Adult Emergence ◽

Parasitoid Complex ◽

Nantucket Pine Tip Moth ◽

Rhyacionia Frustrana ◽

Georgia Piedmont ◽

Eleven Species

AbstractAdult emergence curves of the Nantucket pine tip moth, Rhyacionia frustrana (Comstock), and 27 members of its parasitoid complex were compared for four generations in the Georgia piedmont. Based on numbers of emerging adults, parasitism of the three 1975 R. frustrana generations was 42%. Two parasitoids, Lixophaga mediocris Aldrich and Compoplex frustranae Cushman, comprised 45 and 23% of all parasitoids, respectively.Emergence curves of R. frustrana and parasitoids showed considerable overlap. It appears unlikely that foliar applications of broad spectrum insecticides for control of R. frustrana can be timed to prevent heavy parasitoid mortality.Eleven species of parasitoids were reared directly from host larvae or pupae. Examination of host remains showed that some species of parasitoids may be either primary or secondary. The habits of Haltichella rhyacionae Gahan and Spilochalcis flavopicta Cresson were found to be more diverse than previously reported and include internal secondary and primary parasitism, respectively.

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