Add to ORKGA survey of Christmas tree farms in Michigan revealed that 26% of the Scotch pine Christmas trees have one or more shoots injured by the eastern pineshoot borer, Eucosma gloriola Heinrich. Most attacks occurred on lateral branches in the top half of the tree. Only 2% of the observed trees had pineshoot borer injury on the terminal leader. Control except for normal shearing, was not recommended for most plantations
(excerpt) The European pine sawfly, Neodiprion sertifer (Geoffroy), is a perennial problem in young ...
[excerpt] Accidentally introduced into New Jersey about 1925, the European pine sawfly, Neodiprion s...
Three young loblolly pine plantations grown on contrasting soil types produced quantitatively and qu...
Two blocks of Scotch pine Christmas trees were inspected to determine an appropriate time to evaluat...
Nine varieties of Scotch pine, Pinus sylvestris, were assessed for their susceptibility to Zimmerman...
Tomicus piniperda, the pine shoot beetle, is an exotic insect that was first found in North America ...
(excerpt) Scotch pine (Pinus sylvestris L.), a forest tree introduced from Eurasia, is commonly plan...
Contarinia baeri is univoltine in Michigan. Adults emerge in spring, and females deposit eggs in sma...
The European pine shoot moth has been recognized as a pest .in Europe for over a century. It was fir...
Excerpt: During late June and early July, 1965, it was apparent that plantations of Scotch and Austr...
Many types of insect and mite pests can attack trees in home landscapes. Although feeding damage fro...
The middle crown and south quadrant of 6-m-tall jack pines, Pinus banksiana Lamb., produced signific...
Two jack pine plantations were established at the Cloquet Forestry Center, Cloquet, Minnesota, in 19...
"The pine wilt disease is caused by a microscopic nematode, Bursaphelenchus xylophilus, sometimes kn...
A perusal of previous research on sugar maple borer, Glycobius speciosus, in northern New York State...
(excerpt) The European pine sawfly, Neodiprion sertifer (Geoffroy), is a perennial problem in young ...
[excerpt] Accidentally introduced into New Jersey about 1925, the European pine sawfly, Neodiprion s...
Three young loblolly pine plantations grown on contrasting soil types produced quantitatively and qu...
Two blocks of Scotch pine Christmas trees were inspected to determine an appropriate time to evaluat...
Nine varieties of Scotch pine, Pinus sylvestris, were assessed for their susceptibility to Zimmerman...
Tomicus piniperda, the pine shoot beetle, is an exotic insect that was first found in North America ...
(excerpt) Scotch pine (Pinus sylvestris L.), a forest tree introduced from Eurasia, is commonly plan...
Contarinia baeri is univoltine in Michigan. Adults emerge in spring, and females deposit eggs in sma...
The European pine shoot moth has been recognized as a pest .in Europe for over a century. It was fir...
Excerpt: During late June and early July, 1965, it was apparent that plantations of Scotch and Austr...
Many types of insect and mite pests can attack trees in home landscapes. Although feeding damage fro...
The middle crown and south quadrant of 6-m-tall jack pines, Pinus banksiana Lamb., produced signific...
Two jack pine plantations were established at the Cloquet Forestry Center, Cloquet, Minnesota, in 19...
"The pine wilt disease is caused by a microscopic nematode, Bursaphelenchus xylophilus, sometimes kn...
A perusal of previous research on sugar maple borer, Glycobius speciosus, in northern New York State...
(excerpt) The European pine sawfly, Neodiprion sertifer (Geoffroy), is a perennial problem in young ...
[excerpt] Accidentally introduced into New Jersey about 1925, the European pine sawfly, Neodiprion s...
Three young loblolly pine plantations grown on contrasting soil types produced quantitatively and qu...