Effectiveness of permethrin plus-C (Masterline®) and carbaryl (Sevin SL®) for protecting individual, high-value pines (Pinus) from bark beetle attack

Christopher J. Fettig, Thomas E Degomez, Kenneth E. Gibson, Christopher P. Dabney, Robert R. Borys

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Bark beetles (Coleoptera: Scolytidae) are commonly recognized as the most important mortality agent in western North American coniferous forests. High-value trees such as those located in residential, recreational, or administrative sites are particularly susceptible to attack. Regardless of landowner objectives, tree losses in these unique environments generally have a catastrophic impact. The value of these individual trees, the cost of removal, and the loss of aesthetics may justify protection until the main thrust of a bark beetle infestation subsides. This situation emphasizes the need for assuring that effective insecticides are available for individual tree protection. In this study, we assessed the efficacy of permethrin plus-C (Masterlineg®) and carbaryl (Sevin SL®) for protecting ponderosa, Pinus ponderosa Dougl. ex. Laws., lodgepole, P. contorta Dougl. ex Loud., and pinyon, P. edulis Engelm., pines from bark beetle attack during two field seasons. Masterline® was effective for protecting P. contorta from mountain pine beetle, Dendroctonus ponderosae Hopkins, attack for one field season. However, Sevin SL® was efficacious for two field seasons. An insufficient number of P. ponderosa and P. edulis control trees were killed to make definitive conclusions regarding efficacy in those systems. The data reported here regarding Masterline® is the first published report on its effectiveness for preventing bark beetle attack on standing trees. Masterline® appears to be an effective individual tree protection tool, but repeated applications will be necessary if multiyear control is desired.

Original languageEnglish (US)
Pages (from-to)247-252
Number of pages6
JournalArboriculture and Urban Forestry
Volume32
Issue number5
StatePublished - Sep 2006

Fingerprint

permethrin
carbaryl
bark beetles
bark
beetle
Pinus
Dendroctonus ponderosae
Pinus ponderosa
Pinus edulis
Pinus contorta
Scolytidae
aesthetics
landowners
landowner
coniferous forest
esthetics
coniferous forests
insecticide
insecticides
thrust

Keywords

  • Carbaryl
  • Dendroctonus brevicomis
  • Dendroctonus ponderosae
  • Ips confusus
  • Lodgepole pine
  • Permethrin
  • Pinyon pine
  • Ponderosa pine

ASJC Scopus subject areas

  • Forestry
  • Ecology

Cite this

Effectiveness of permethrin plus-C (Masterline®) and carbaryl (Sevin SL®) for protecting individual, high-value pines (Pinus) from bark beetle attack. / Fettig, Christopher J.; Degomez, Thomas E; Gibson, Kenneth E.; Dabney, Christopher P.; Borys, Robert R.

In: Arboriculture and Urban Forestry, Vol. 32, No. 5, 09.2006, p. 247-252.

Research output: Contribution to journalArticle

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abstract = "Bark beetles (Coleoptera: Scolytidae) are commonly recognized as the most important mortality agent in western North American coniferous forests. High-value trees such as those located in residential, recreational, or administrative sites are particularly susceptible to attack. Regardless of landowner objectives, tree losses in these unique environments generally have a catastrophic impact. The value of these individual trees, the cost of removal, and the loss of aesthetics may justify protection until the main thrust of a bark beetle infestation subsides. This situation emphasizes the need for assuring that effective insecticides are available for individual tree protection. In this study, we assessed the efficacy of permethrin plus-C (Masterlineg{\circledR}) and carbaryl (Sevin SL{\circledR}) for protecting ponderosa, Pinus ponderosa Dougl. ex. Laws., lodgepole, P. contorta Dougl. ex Loud., and pinyon, P. edulis Engelm., pines from bark beetle attack during two field seasons. Masterline{\circledR} was effective for protecting P. contorta from mountain pine beetle, Dendroctonus ponderosae Hopkins, attack for one field season. However, Sevin SL{\circledR} was efficacious for two field seasons. An insufficient number of P. ponderosa and P. edulis control trees were killed to make definitive conclusions regarding efficacy in those systems. The data reported here regarding Masterline{\circledR} is the first published report on its effectiveness for preventing bark beetle attack on standing trees. Masterline{\circledR} appears to be an effective individual tree protection tool, but repeated applications will be necessary if multiyear control is desired.",
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