1-Pests (1-7)

Question 1

Insects and their Relatives

Describe the types of damage arthropod Pest and cause

Question 2

Insects and their Relatives

Describe the structural features of insects

Question 3

Insects and their Relatives

Explain how to distinguish insects from other arthropods

Question 4

Insects and their Relatives

Explain the difference between simple and complete metamorphosis

Answer 4

Simple
Egg,
nymph: look like adult, molt, no wings
adult

Complete
egg
larva, may not look like adult, molts 
pupa: may have cocoon, does not eat
adult

Question 5

Insects and their Relatives

Explain how temperature and humidity affect insect development

Question 6

Insects and their Relatives

Describe some of the characteristics of the common insect pests we discussed in this chapter

Question 7

Insects and their Relatives

List the advantages and disadvantages of using insecticides

Question 8

Insects and their Relatives

Describe some of the ways insecticides are used

Question 9

Weeds

Explain what determines whether a given plant is a weed

Question 10

Weeds

List the two main goals of weed management

Question 11

Weeds

Describe the ways that weeds can pose problems in Crop Production

Question 12

Weeds

Distinguish grasses from broad leaves

Question 13

Weeds

Describe the life cycles and propagation of annual (both summer and winter) by annual and perennial plants

Question 14

Weeds

Outine what is needed to kill annual biennial and perennial weeds and when it is easiest to do so

Question 15

Weeds

Distinguish the difference between pre-plant pre-emergent and post-emergent herbicide applications

Question 16

Weeds

Explain the effects of soil texture organic matter and pH and herbicide persistence on herbicide activity

Question 17

Weeds

Explain why you must acquire post-emergent herbicides at the proper stage of crop growth

Question 18

Weeds

Describe what influences the uptake of post-emergent herbicides by weeds

Answer 18

• must remain long enough to be absorbed
• might require a rain free period
• hairy leaf surfaces may keep spray from reaching leaf
• waxy leaf surfaces inhibit herbicide retention and absorption
• adjuvants may help, surfactants, crop oils, seed oils, nitrogen additives

Question 19

Weeds
List the concerns involving antagonistic herbicides and
adverse interactions between herbicides and insecticides

Answer 19

• when mixed, some may reduce the effectiveness of the other
• Some organophosphate insecticides cause corn to me much more susceptible to injury from postemergence-applied accent or Steadfast.

Question 20

Weeds
Know the Law
State and local laws require you to control certain weeds to prevent their spread and distribution or to protect the quality of Feed and Seed new line in line