Results 21 to 30 of about 416,634 (308)

\u3ci\u3eLeptoglossus Corculus\u3c/i\u3e and \u3ci\u3eLeptoglossus Occidentalis\u3c/i\u3e (Hemiptera: Coreidae) Attacking Red Pine, \u3ci\u3ePinus Resinosa\u3c/i\u3e, Cones in Wisconsin and Minnesota [PDF]

open access: yes, 2017
Leptoglossus corculus and Leptoglossus occidentalis are recorded feeding on red pine cones and conelets in Wisconsin and L.
Katovich, Steven A, Kulman, Herbert M
core   +2 more sources

Impact of the Redheaded Pine Sawfly (Hymenoptera: Diprionidae) on Young Red Pine Plantations [PDF]

open access: yes, 2017
The ecology of the redheaded pine sawfly was studied relative to its impact on red pine plantations. An ecological model, which formed the basis for socioeconomic analysis, was constructed.
Averill, Robert D   +2 more
core   +2 more sources

Abnormal Shoot and Leaf Formation in Some Native Pine Species

open access: yesForestist, 2011
In many tree species, when abnormal shoot formation after fire, insect attack and grazing is being observed, this formation is not common in pine species and not well-known.
Hatice Yılmaz, Ünal Akkemik
doaj   +1 more source

Spatial Distribution of Egg Clusters of the European Pine Sawfly \u3ci\u3eNeodiprion Sertifer\u3c/i\u3e (Geoff.) in Young Pine Plantations in Michigan [PDF]

open access: yes, 2017
(excerpt) The European pine sawfly, Neodiprion sertifer (Geoffroy), is a perennial problem in young pine plantations in Eastern North America. Scotch pine, Pinus sylvestris L., and red pine, P. resinom Ait., are its principal hosts.
Wilson, Louis F
core   +2 more sources

Grasshoppers Feeding on Red Pine Trees in Michigan (Orthoptera: Acrididae) [PDF]

open access: yes, 2017
Very few North American grasshoppers are true feeders on conifers. The several species of the punctulatus species-group of the genus Melanoplus, as summarized and revised by Rehn (1946), have been reported as occurring on pine, juniper, and cedar, but ...
McPherson, J. E, Wilson, Louis F
core   +3 more sources

Deep Learning-Based Pine Nematode Trees’ Identification Using Multispectral and Visible UAV Imagery

open access: yesDrones, 2023
Pine wilt disease (PWD) has become increasingly serious recently and causes great damage to the world’s pine forest resources. The use of unmanned aerial vehicle (UAV)-based remote sensing helps to identify pine nematode trees in time and has become a ...
Bingxi Qin   +6 more
doaj   +1 more source

Annual Variation in Starting Date of Spring Feeding by the European Pine Shoot Moth in a Michigan Planting [PDF]

open access: yes, 2017
New tents spun in five successive springs by the European pine shoot moth (Rhyacionia buoliana [Schiff.] ) in a Michigan planting of red pine (Pinus resinosa Ait.) occurred about 2 days later each year.
Miller, William E
core   +2 more sources

Red-Cockaded Woodpecker Nestling Provisioning and Reproduction in Two Different Pine Habitats [PDF]

open access: yes, 2004
We obtained nestling provisioning and reproductive data from 24 Red-cockaded Woodpecker (Picoides borealis) groups occupying two different pine habitats-longleaf pine (Pinus palustris) and a mixture of loblolly (P. taeda) and shortleaf pine (P. echinata)-
Conner, Richard N.   +3 more
core   +2 more sources

Onset of canopy closure for black pine, Turkish red pine and Scots pine forests

open access: yesJournal of Forest Science, 2018
Canopy closure plays an important role in regeneration and management activities in forestry. Thus, determining the density at which canopy closure occurs is important for the success of silvicultural treatments.
Ferhat KARA, Osman TOPAÇOĞLU
doaj   +1 more source

Spatial and Seasonal Distribution of Pine Root Collar Weevil Eggs in Young Red Pine Plantations [PDF]

open access: yes, 2017
The pine root collar weevil (Hylobius radicis Buchanan) is a continuous threat to young pine plantations in the northeastern United States and the adjacent Canadian Provinces The female weevil oviposits during the daytime (Wilson, 1968a) near the root ...
Wilson, Louis F
core   +2 more sources

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