1-Pests (1-7) Flashcards
Insects and their Relatives
Describe the types of damage arthropod Pest and cause
Insects and their Relatives
Describe the structural features of insects
Insects and their Relatives
Explain how to distinguish insects from other arthropods
Insects and their Relatives
Explain the difference between simple and complete metamorphosis
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
Insects and their Relatives
Explain how temperature and humidity affect insect development
Insects and their Relatives
Describe some of the characteristics of the common insect pests we discussed in this chapter
Insects and their Relatives
List the advantages and disadvantages of using insecticides
Insects and their Relatives
Describe some of the ways insecticides are used
Weeds
Explain what determines whether a given plant is a weed
Weeds
List the two main goals of weed management
Weeds
Describe the ways that weeds can pose problems in Crop Production
Weeds
Distinguish grasses from broad leaves
Weeds
Describe the life cycles and propagation of annual (both summer and winter) by annual and perennial plants
Weeds
Outine what is needed to kill annual biennial and perennial weeds and when it is easiest to do so
Weeds
Distinguish the difference between pre-plant pre-emergent and post-emergent herbicide applications
Weeds
Explain the effects of soil texture organic matter and pH and herbicide persistence on herbicide activity
Weeds
Explain why you must acquire post-emergent herbicides at the proper stage of crop growth
Weeds
Describe what influences the uptake of post-emergent herbicides by weeds
- 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
Weeds
List the concerns involving antagonistic herbicides and
adverse interactions between herbicides and insecticides
- 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.
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
