| dc.date |
2006-11-07T21:50:09Z |
|
| dc.date |
2006-11-07T21:50:09Z |
|
| dc.date |
1974 |
|
| dc.date.accessioned |
2013-10-16T07:41:35Z |
|
| dc.date.available |
2013-10-16T07:41:35Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3315 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3315 |
|
| dc.description |
An active infestation of ash borer, Podosesia syringae (Harris) was
detected in green ash, Fraxinus pennsylvanica Marsh, surrounding the
Bowman-Haley Reservoir in 1973. A survey in 1974 showed that 40.4
percent of 690 trees examined contained active ash borer attacks.
Forty-three out of 140 windbreaks were sampled and each one was
infested. There was an average of 1.8 attacks per infested tree.
The survey indicated that the infestation will continue in 1974. Plans
are being made to test several chemicals on the ash borers at the
Bowman-Haley damsite. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Northern Region |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. 74-21 |
|
| dc.relation |
Insect disease report |
|
| dc.title |
Ash borer damage in green ash windbreaks surrounding the Bowman-Haley Reservoir in North Dakota, spring 1974 |
|
| dc.type |
Technical Report |
|