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Lab
9: Leaf miners, twig leaf and trunk feeders, borers (I)
Picture Sheet 4 of 7 |
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| Click on the pictures for larger view. | Click on the pictures for larger view. | ||
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Close up of twig chewing by Pales or northern pine weevil adult. |  |
Chip bark coccons of Pales weevil. |
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Pales weevil adult. |  |
Placing pine disks in Christmas tree plantation is a great way to monitor for weevil activity in spring. Time foliar sprays to coincide with adult activity. |
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Northern pine weevil etching the trunk of culled Scotch pine Christmas tree. |  |
Pales, Northern Pine and Pine root collar injury require recently killed pines to complete their life cycle. |
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