MASTER GARDENER- WEEK 5
(CHAPTERS 7 & 9) INSECTS & PEST
MANAGEMENT QUESTIONS AND
ANSWERS.
The majority of insects are what? - Answer Neutral or Beneficial
Scientist who study insects are know as - Answer Entomologist
To be classified as an insect the adult must have what 4 features - Answer Three distince
body regions (head, thorax, abdomen)
3 pairs of jointed legs
1 pair antennae
Wings (none, one or two pairs)
Immature insects shed their exoskeleton by doing what - Answer Molting as many as 6 times
What is gradual metamorphosis and its stages - Answer This is a type of development in
which the egg hatches to a nymph (immature stage is a smaller version of the adult) and
becomes an adult. Grasshopper
What is complete metamorphosis and its stages - Answer Complete metamorphosis refers to
change in anatomical and physiological form through a series of life stages. egg, larvae, pupa,
then adult. Butterfly
What are the two basic feeding patterns of insect pest (examples) - Answer Chewing -
Borers, leafminers, defoliators and skeletonizers
Sucking - Leaf hoppers, aphids, true bugs, thrips, white flies
What are spiracles and where are they located - Answer Holes on sides of insects that allow
breathing. 2 on thorax and 8 on abdomen.
How do most insecticides enter an insect - Answer Via the spiracles
The most important 3 orders of plant feeding insects are - Answer Coleoptera - Beeles and
weevils
Hemiptera - True bugs, leafhoppers, aphids, scales, whiteflies
, Lepidoptera - Butterflies, moths
What does host specific mean - Answer Many plant feeding insects prefer specific plants.
Knowing plant identity is key to chemical control of pest especially food crops. i.e. Juniper twig
girdler, tomato hornworm, California oak worm.
Stippled, yellowed, bleached, or bronzed foliage is indicative of what pest. - Answer Spider
mites, leafhoppers, plant bugs, lace bugs, thrips, aphids, psylids, whiteflies
What are the nine (9) tips for diagnosing insect problems - Answer 1. Host plants
2. Other kinds of problems
3. Plant sample does not show cause
4. Entire plant dead
5. Too late
6. Inspect damage with lens
7. Look for sings of feeding
8. Admit doubt
9. Stick with UC advice
What is the most central concept of integrated pest management - Answer Control methods:
Resistant varieties (stock), cultural practices, biological controls, least-toxic pesticides for long
term management.
Five (5) major methods used to control insect pest - Answer 1. Legislative control -
quarintines and boarder inspections
2. Physical control - cardboard collars for cut worms
3. Cultural control - varieties resistant to pest, plant rotation
4. Biological control - promoting natural pest enemies
5. Chemical control - least toxic (soaps, oils, inorganics, etc.
Define Integrated Pest Management - Answer IPM is an ecosystem-based strategy that
focuses on long term prevention of pest or their damage through a combination of
management methods
Explain why monitoring is the backbone of any IPM program - Answer Reduce pesticide
applications, cost savings, limit pesticide resistance.
(CHAPTERS 7 & 9) INSECTS & PEST
MANAGEMENT QUESTIONS AND
ANSWERS.
The majority of insects are what? - Answer Neutral or Beneficial
Scientist who study insects are know as - Answer Entomologist
To be classified as an insect the adult must have what 4 features - Answer Three distince
body regions (head, thorax, abdomen)
3 pairs of jointed legs
1 pair antennae
Wings (none, one or two pairs)
Immature insects shed their exoskeleton by doing what - Answer Molting as many as 6 times
What is gradual metamorphosis and its stages - Answer This is a type of development in
which the egg hatches to a nymph (immature stage is a smaller version of the adult) and
becomes an adult. Grasshopper
What is complete metamorphosis and its stages - Answer Complete metamorphosis refers to
change in anatomical and physiological form through a series of life stages. egg, larvae, pupa,
then adult. Butterfly
What are the two basic feeding patterns of insect pest (examples) - Answer Chewing -
Borers, leafminers, defoliators and skeletonizers
Sucking - Leaf hoppers, aphids, true bugs, thrips, white flies
What are spiracles and where are they located - Answer Holes on sides of insects that allow
breathing. 2 on thorax and 8 on abdomen.
How do most insecticides enter an insect - Answer Via the spiracles
The most important 3 orders of plant feeding insects are - Answer Coleoptera - Beeles and
weevils
Hemiptera - True bugs, leafhoppers, aphids, scales, whiteflies
, Lepidoptera - Butterflies, moths
What does host specific mean - Answer Many plant feeding insects prefer specific plants.
Knowing plant identity is key to chemical control of pest especially food crops. i.e. Juniper twig
girdler, tomato hornworm, California oak worm.
Stippled, yellowed, bleached, or bronzed foliage is indicative of what pest. - Answer Spider
mites, leafhoppers, plant bugs, lace bugs, thrips, aphids, psylids, whiteflies
What are the nine (9) tips for diagnosing insect problems - Answer 1. Host plants
2. Other kinds of problems
3. Plant sample does not show cause
4. Entire plant dead
5. Too late
6. Inspect damage with lens
7. Look for sings of feeding
8. Admit doubt
9. Stick with UC advice
What is the most central concept of integrated pest management - Answer Control methods:
Resistant varieties (stock), cultural practices, biological controls, least-toxic pesticides for long
term management.
Five (5) major methods used to control insect pest - Answer 1. Legislative control -
quarintines and boarder inspections
2. Physical control - cardboard collars for cut worms
3. Cultural control - varieties resistant to pest, plant rotation
4. Biological control - promoting natural pest enemies
5. Chemical control - least toxic (soaps, oils, inorganics, etc.
Define Integrated Pest Management - Answer IPM is an ecosystem-based strategy that
focuses on long term prevention of pest or their damage through a combination of
management methods
Explain why monitoring is the backbone of any IPM program - Answer Reduce pesticide
applications, cost savings, limit pesticide resistance.
