Pesticides and Herbicides Test
Nematodes
parasite, sustains life and gains nutrients from another source
How many people immigrated to the US because of the potato blight?
1.5 million
By damaging our crops, pests destroy ____% of our nation's agricultural production every year.
45
What is the action threshold?
A point or level at which pest populations or environmental conditions indicate that pest control actions must be taken
Bacteriacides
Affect bacteria and disease causing organisms
Avicides
Affect birds
Piscicides
Affect fish
Fungicide
Affect funguses
Insecticide
Affect insects
Nematicides
Affect nematodes
Rodenticides
Affect rodents
Molluscicides
Affect snails
Herbicides
Affect weeds
When did pesticides become a mainstream practice?
After World War Two
Disease
Any condition in a plant caused by living and no living agents that interferes with its normal growth and development
Pests
Any life form that competes for resources or can be dangerous to another's health
What are pests defined as?
Any life form that competes for resources or can be dangerous to another's health
Pesticide
Any substance that reduces, prevents, repels, or eliminates pests
____________ pesticides are living agents used to control specific pathogens which are also living organisms
Biological
Biorational Pesticides
Considered to be environmentally friendly
What do aphids and horn worms do?
Damage the leaves of plants, affecting their ability to effectively process energy
_________ nematodes eat holes through the leaves of plants, affecting the _________capabilities of the plant
Foliar and metabolic
The first type of postemergent herbicide is for use on annual weeds, and kills the plant by _________ _________, affecting only the leaves and green tissue that are contacted by the spray.
Foliar contact
How many steps are in the approach that are used when practicing IMP?
Four steps
How should you store pesticides?
In a cool, dry, well-ventilated building
Disinfectants
Kills microorganisms present in the shortest time with no damage to the contaminated substrate
What are some cultural control?
Mulches, crop rotation, tie of planting, planting density, planting arrangement, and proper irrigation
_____________ herbicides must be used and applied precisely because it will kill any plant it comes in contact with
Non-selective
__________ herbicides only affect plants that are actively growing
Postemergent
_____________ herbicides control weeds by preventing the weed seeds from emerging
Preemergent
What are some different forms of weed management?
Pulling, chopping, and the use of herbicides
________ herbicides kill certain types of plants, while leaving the desired plant unharmed
Selective
What are used to provide a brief explanation of the hazards of toxicity of the product?
Signal words
What are pesticides we come into contact with ever day?
Table salt and chlorine
What are chemical pesticides considered?
The "traditional" pesticide
When did the potato blight occur?
The 1840s
What is the trade name of a pesticide?
The name assigned by the manufacturer or distributor of a particular product
What is the common name of a pesticide?
The name assigned to the active ingredient of the pesticide
The second type of postemergent herbicide is _________ herbicides, which effect perennial weeds by absorbing through the leaves, traveling to the roots and killing the weed from the ground up
Translocated
What is the best way to prevent fungal disease?
Using sprays or dusts
What are annuals?
Weeds that live for about a year
What are biennials?
Weeds that live for longer than a year but no longer than two years
What are perennials?
Weeds that live several years
What virus do mosquitoes contain an drive to humans and livestock?
West Nile virus
Are nematodes a parasite?
Yes, they sustain life and gain nutrition through another life form
