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Flashcards in Stored Product Pests Deck (14)
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1
Q

explain difference of external and internal feeders

A

internal feeders are insects that feed and develop entirely inside a kernel of grain, external develop outside kernel and are capable of eating whole and processed grains

2
Q

Define stored product scavengers and secondary pests

A

scavengers only eat grains that have been processed or damaged by other insects, secondary infestations eat damaged grain that has rotted or moldy

3
Q

What is a distinctive feature of most weevils

A

elongated proboscis (snout)

4
Q

Identifying characteristics of a rice weevil

A

internal feeder, long and brown, 4 slash markings on outer corners of elytra

5
Q

Describe angoumois grain moths

A

internal feeder, yellowish white with pale yellowish forewings

6
Q

Describe a drugstore beetle

A

brown, elytra have distinct rows of pits, Antennae end wit a loose 3 segmented club, attracted to light and able to fly, external feeder

7
Q

Describe an Indian meal Moth

A

wings are bicolored but have bronze or copper scales on outer half, adults are nocturnal, during the day they rest on surfaces with wings folded

8
Q

Describe a cigarette beetle

A

long and brown with very smooth elytra in contrast to drugstore beetle, humpbacked appearance, antenna segments are serrate,

9
Q

Describe dermestids

A

Carpet beetles, food on foods containing animal proteins, Oval shape, short clubbed antennae, head often hidden, often covered with scales

10
Q

Describe saw toothed grain beetles

A

saw like notches on pronotum

11
Q

Describe clothes moths

A

small, attack wool, furs cashmere, feathers, feed on desiccated bodies of dead rodents, do not readily fly, fun or scuttle

12
Q

Explain difference between firebrats and silverfish

A

same except silverfish are uniformly silver and firebrats are mottled with gray and darker markings

13
Q

Describe Psocids

A

booklice (not truly lice), minute, like moisture, easily distinguished from termite larva by swollen upper lip and two or three segmented tarsi

14
Q

Define tarsus

A

Insect foot containing one to five segments