Výsledky vyhledávání - "D. M. Harman"

Two new species of aphelenchoididae (nemata) from declining red pines in Maryland

Autor: T R, Kaisa, A L, Harman, D M, Harman

Publikováno v: Journal of nematology. 27(2)

Aphelenchoides resinosi n. sp. and Ektaphelenchus joyceae n. sp. are described and illustrated from red pines of the Allegheny plateau of Maryland, USA. The new species were found in trees infested with Bursaphelenchus xylophilus. Primary diagnostic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::2f58bc99ab4b5fde84062ff47b1eb2ab
https://pubmed.ncbi.nlm.nih.gov/19277282

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Height Distribution of Locust Borer Attacks (Coleoptera: Cerambycidae) in Black Locust

Autor: A. L. Harman, D. M. Harman

Publikováno v: Environmental Entomology. 19:501-504

Black locust trees ( Robinia pseudoacacia L.) of variable age and height were studied in relation to vertical distribution of larval tunnels made by the locust borer, Megacyllene robiniae (Forster), in Maryland. Tunnel concentrations were negatively

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2113c5a571f65ca0525a0bf45ab436a2
https://doi.org/10.1093/ee/19.3.501

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Sex pheromone cross-attraction among four species of pine tip moths,Rhyacionia species

Autor: R. C. Wilkinson, D. M. Harman, B. L. Freeman, J. R. McGraw, C. W. Berisford

Publikováno v: Journal of Chemical Ecology. 5:205-210

Field tests utilizing crude pheromone extracts fromRhyacionia frustrana, R. rigidana, R. subtropica, andR. buoliana showed thatR. subtropica andR. buoliana were mutually attractive.R. frustrana was attracted in low numbers to bothR. subtropica andR.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e963528332357c0bdcf6caa98909b749
https://doi.org/10.1007/bf00988235

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Economic implications of a management‐oriented remote sensing program

Autor: D. M. Harman, D. B. Fuller, K. B. Fuller, R. Tsuchigane

Publikováno v: Coastal Zone Management Journal. 8:105-122

Economic aspects of remote sensing as used by natural resources managers in the Mid‐Atlantic region were examined. The authors concluded that the aspects of accuracy, uniformity, completeness, reliability, research and development capability, cost

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::79e63b9290b4c4080c64ad0c85c10c37
https://doi.org/10.1080/08920758009361872

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Description of the Immature Stages of Lonchaea corticis1, with Notes on its Role as a Predator of the White Pine Weevil, Pissodes strobi2

Autor: J. B. Wallace, D. M. Harman

Publikováno v: Annals of the Entomological Society of America. 64:1221-1226

Descriptions are given of the 3 larval instars and puparium of Lonchaea corticis Taylor. The 3 larval instars can be differentiated by the cephalopharyngeal skeleton and the anterior and posterior spiracles. The 1st-stage larvae are metapneustic, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f75add322a386e24879ef188fa1d43aa
https://doi.org/10.1093/aesa/64.6.1221

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Ovariole Development in the White-Pine Weevil, Pissodes strobi (Coleoptera: Curculionidae)1

Autor: D. M. Harman, H. M. Kulman

Publikováno v: Annals of the Entomological Society of America. 60:1146-1150

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::773af7128a1662178848370f2289df39
https://doi.org/10.1093/aesa/60.6.1146

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Unsuccessful Brood Development of the White-Pine Weevil

Autor: H. M. Kulman, D. M. Harman

Publikováno v: Journal of Economic Entomology. 60:1216-1220

Many white pine, Pinus strobus L., leaders killed by the white-pine weevil, Pissodes strobi (Peck), do not yield a new brood of weevils. Brood development was considered “successful,” A , if weevils emerged from the attacked leaders and “unsucc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e39e68fa5c94df262d2a889ec4eff655
https://doi.org/10.1093/jee/60.5.1216

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Flight and Dispersal of the White-Pine Weevil1

Autor: D. M. Harman, H. M. Kulman

Publikováno v: Journal of Economic Entomology. 60:1682-1687

flight and dispersal of the white-pine weevil, Pissodes strobi (Peck), through a white pine plantation was studied by releasing 409 marked weevils at a central point within a 1431-tree plantation and checking every tree at 5-day intervals. Weevils fl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::744f4369a117728f46ef73ba37833b32
https://doi.org/10.1093/jee/60.6.1682

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Dispersion of Released White-Pine Weevils1 in Intrastand Growth Types2

Autor: D. M. Harman, H. M. Kulman

Publikováno v: Annals of the Entomological Society of America. 62:835-838

Differences in rate of occurrence of released Pissodes strobi (Peck) (Coleoptera: Curculionidae) were manifest between bare soil, partial competition, and heavy shade cover types in a 1431-tree white pine plantation. Statistical analysis inferred tha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eaf7c4b7304a8a2d7d405a587ea00599
https://doi.org/10.1093/aesa/62.4.835

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