Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Mark W. Houseweart"'
Autor:
Mark W. Houseweart, A. Lee Eavy
Publikováno v:
Northern Journal of Applied Forestry. 4:69-72
The reliability of assessing tamarack seed quality using 95% ethanol to separate empty and full seed was tested using two different methods. X-radiography analysis and germination trials indicated that ethanol flotation of tamarack seed results in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::306ec3d7311247a86ffa1549f8e61240
https://doi.org/10.1093/njaf/4.2.69
https://doi.org/10.1093/njaf/4.2.69
Autor:
Mark W. Houseweart, Wayne N. Dixon
Publikováno v:
Environmental Entomology. 11:555-564
Life tables (1977–1980) are presented for three generations of the white pine weevil, Pissodes strobi (Peck) (Coleoptera: Curculionidae), a pest insect of eastern white pine, Pinus strobus L. Typically, female weevils oviposited ca. 140 eggs per te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::299f4d8f4629986b612885e8323ea656
https://doi.org/10.1093/ee/11.3.555
https://doi.org/10.1093/ee/11.3.555
Autor:
Mark W. Houseweart, Wayne N. Dixon
Publikováno v:
Environmental Entomology. 12:43-49
Spring activities (emergence, feeding, mating, and oviposition) of adult white pine weevils, Pissodes strobi , were monitored weekly from late April to early July 1979. Weevils emerged from overwintering sites in late April. peaked in numbers per tre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b0dd05cb4e7054b8b4ae1c7fa25e04f
https://doi.org/10.1093/ee/12.1.43
https://doi.org/10.1093/ee/12.1.43
Publikováno v:
The Canadian Entomologist. 116:1357-1366
Trichogramma minutum Riley was released in the field for suppression of epidemic spruce budworm, Choristoneura fumiferana (Clemens), egg populations in Maine from 1977 to 1981. Commercially reared California-strain T. minutum were released from the g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::697c5b0b42b6d5c97f47c1aa532a81d6
https://doi.org/10.4039/ent1161357-10
https://doi.org/10.4039/ent1161357-10
Publikováno v:
Annals of the Entomological Society of America. 67:887-890
Regression equations were used to determine an estimate of the number of eggs and 1st-stage larvae of Pikonema alaskensis (Rohwer) on young plantation white spruce trees, Picea glauca (Moench) Voss, for use in life table studies of the defoliator. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40d898b0fe53234fee32c76482e1586a
https://doi.org/10.1093/aesa/67.6.887
https://doi.org/10.1093/aesa/67.6.887
Publikováno v:
Environmental Entomology. 8:340-343
Cocoon distribution of Pikonema alaskensis (Rohwer) was studied in 10- to 12-yr-old white spruce plantations in Minnesota. Adjacent soil cores were taken radially from the trunk, extending 88 cm beyond the crown. Adult emergence traps were placed und
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::273021f28a652c7e334282ec97c34510
https://doi.org/10.1093/ee/8.2.340
https://doi.org/10.1093/ee/8.2.340
Publikováno v:
The Canadian Entomologist. 114:693-698
Three body dimensions (body length, head width, and abdomen width) were used to determine size differences between laboratory-reared and wild populations of Trichogramma minutum Riley. Six separate groups of T. minutum were measured: three groups wer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80f7c980858e6b82ae8aabeaa1c9915f
https://doi.org/10.4039/ent114693-8
https://doi.org/10.4039/ent114693-8
Publikováno v:
Environmental Entomology. 12:1787-1792
Strip clearcutting contributed to dispersal losses of early-instar larvae of the spruce budworm. Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae). Significantly more L1 larvae were trapped in uncut residual strips of strip clearcuts than
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7ef9f228eb401ab242f20c12fe1cb47
https://doi.org/10.1093/ee/12.6.1787
https://doi.org/10.1093/ee/12.6.1787
Publikováno v:
The Canadian Entomologist. 118:43-50
Four genera and 9 species of ants were collected by pitfall traps in a spruce budworm-infested forest of northern Maine. Myrmica detritinodis and Camponotus herculeanus were most abundant. In 1977, significantly more individuals and species were trap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::458b280dbdf2d843d781483214faace6
https://doi.org/10.4039/ent11843-1
https://doi.org/10.4039/ent11843-1
Autor:
Mark W. Houseweart, Celeste Welty
Publikováno v:
Environmental Entomology. 14:826-833
Seedling debarking damage in plantations of various conifer species in Maine was found to be caused by Hylobius congener Dalla Torre, Schenkling, and Marshall. H. congener has not been reported in the literature as a pest of living trees. During 1982
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::926fa3977cc7367b58c48ed9be23d571
https://doi.org/10.1093/ee/14.6.826
https://doi.org/10.1093/ee/14.6.826