Balsam Wooly Adelgid Flashcards

1
Q

Balsam Adelgid damage? What about susceptibility?

A

Grand fir the highest damage, Amabilis second, subalpine third.

Susceptibility is opposite, due to the elevation range. Adelgid usually introduced by ppl, and has been in Bg for longer.

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2
Q

Is it native?

A

Introduced from Europe

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3
Q

How does wooly Adelgid reproduce?***

A

Parthenogenesis *****

Girls girls girls

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4
Q

Char’s of feeding

A

Very long stylette with two grooves

One for injecting toxins from salivary gland, causing abnormal cell growth and increasing nutrient uptake.

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5
Q

Dispersal

A

L1 crawls up bark toward light where new bark is. (Also AIDS dispersal)

Wingless and sessile

Wind dispersal

Movement of logs and seedlings by humans

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6
Q

Reproduction

A

2-4 generations per year

OW as nymph

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7
Q

Signs and Symptims

A

Gout

White wooly tufts on bark

On Bg, Creates a silhouette with a flat top.

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8
Q

Damage

A

A killer

reduced increment

Deformity and top kill

Loss of B as preferred species

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9
Q

3 letter code

A

IAB

Insect - Aphid/Adelgid - Balsam

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10
Q

Management

A

Predators and insecticides are ineffective

SERIES of treatments required to grow Abies and permit required in quarantine zone.

Established quarantine zone, where live trees cannot moved out of.

Movement of cut trees restricted Jan 31-Nov 1**

Fall and burn in winter/ Debark logs prior to transport

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11
Q

FG criteria

A

No gouting (IAB kills once infection is set in)

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12
Q

Balsam wooly Adelgid host and range

A

True fir host.

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