Pacific Northwest Plant Disease Management Handbook

Flagging

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Latest revision: 
March 2024
Flagging

Many flagging branches in this hazelnut orchard that have been girdled by eastern filbert blight.

Jay W. Pscheidt, 2007.

The loss of turgor and the drooping of plant parts, usually following a water deficit. The death of a branch in a tree where the leaves remain attached. In either case, the diseased portion stands out like a flag.

Pscheidt, J.W., and Ocamb, C.M. (Senior Eds.). 2024 Pacific Northwest Plant Disease Management Handbook.
© Oregon State University.

Use pesticides safely!

  • Wear protective clothing and safety devices as recommended on the label. Bathe or shower after each use.
  • Read the pesticide label—even if you’ve used the pesticide before. Follow closely the instructions on the label (and any other directions you have).
  • Be cautious when you apply pesticides. Know your legal responsibility as a pesticide applicator. You may be liable for injury or damage resulting from pesticide use.

Trade-name products and services are mentioned as illustrations only. This does not mean that the participating Extension Services endorse these products and services or that they intend to discriminate against products and services not mentioned.

H - Home garden packaging commonly available.     O - Acceptable in organic production.