| 31. | David also sent back the first emerald ash borer specimen.
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| 32. | When stressed, bronze birch borers may kill a tree.
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| 33. | Borer attacks most often occur on young trees up to in diameter.
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| 34. | Although this borer is widely distributed, damaging populations are rather local.
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| 35. | The sapwood is usually not attacked by the lyctus borer.
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| 36. | This layer was replaced regularly when infested with marine borers.
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| 37. | They feed as a borer, without making a case.
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| 38. | Borer gained international recognition for his commitment in this process.
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| 39. | The larvae are probably stem borers on " Centaurea ".
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| 40. | Q : I have problems with squash vine borers.
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