Albert Lea Seed House Oat Production Guide | Page 33

Return to preceding couplet (3’).

short
antennae

long
antennae

three
tails

no
tails

Figure 4.1.

Figure 4.2.

4

4’

Larger insect with two long
antennae and three distinct tails
present.
Silverfish or Firebrat

May be large or small insect with
antennae but no distinct tails.
Go to couplet 5

Return to preceding couplet (4’).

11 mm
or more
10 mm
or less

Figure 5.1.

Figure 5.2.

5

5’

Larger insect, 11 mm or more in
length.
Yellow mealworm – Tenebrio molitor

Smaller insect, less than 1 mm in
length.
Go to couplet 6
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