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