Tamarack Pests
Tamarack Pests
Tamarack Pests
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What is causing the eastern larch beetle outbreak in MN?<br />
Is larch casebearer defoliation predisposing tamarack to attack by larch beetle?<br />
Larch Beetle<br />
2000-2009<br />
Larch Casebearer<br />
2000 - 2009<br />
92,000<br />
acres<br />
mortalti<br />
y from<br />
larch<br />
beetle<br />
92,000 acres<br />
mortality by<br />
larch beetle<br />
47,500 acres<br />
defoliated by<br />
larch<br />
casebearer<br />
By 2000-2009 0nly 4152 acres have had both larch beetle and larch casebearer<br />
= 4.4% of larch beetle mortality<br />
22
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