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Gilletteella cooleyi
Douglas fir woolly aphid
Description
It is the best-known pest of Pseudotsuga menziesii. The larvae overwinter on needles. In spring they start to produce small cotton wool-like wads, with which the needles are literally studded. In May, they lay about 300 eggs under the cotton wool-like wad, from which a new generation hatches. One part of the progeny goes onto the trunk, the other part sucks on young needles which can be seriously damaged. At the place of sucking arises a small yellow spot, the needles turn yellow and fall.
Symptom
In spring larvae start to produce small cotton wool-like wax.
Tree Species: Douglas Fir
Part of a plant- attacked: Leaf / Needle
Pest significance: Harmful
Pest Category: Insects
Invasive Species: Yes
Present in EU: Yes
Add comment: Gilletteella cooleyi
Location map: Gilletteella cooleyi
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Last observations
There are a total of 3 observations of the species in the system
Gilletteella cooleyiDouglas fir woolly aphid
martin mesiarkin
Number of votes: 0
Published: 23.4.2024
Gilletteella cooleyiDouglas fir woolly aphid
Pavol Belák
Number of votes: 0
Published: 26.5.2023
Gilletteella cooleyiDouglas fir woolly aphid
Slavo Rell
Number of votes: 0
Published: 4.5.2022
Gilletteella cooleyiDouglas fir woolly aphid
Slavo Rell
Number of votes: 0
Published: 4.5.2022
Gilletteella cooleyiDouglas fir woolly aphid
Slavo Rell
Number of votes: 0
Published: 4.5.2022
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