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Totem Pole Cactus Black Holes: Likely Woodpecker, Spots Mysterious

In-Ground Totem Poles (3 ft) Have 1/2" Black Holes in Tops, Black Spots After 3-Week Absence

Owner in Tucson asks cause.

Probably Gila Woodpecker Nesting

Greg: holes likely woodpecker starting nest. Black spots mysterious—sometimes appear without cause, maybe insect. No good preventative; try malathion if desired.

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