Introduction to Horticulture

Plant: Heuchera

Term: Signal Word

Heuchera

• Common Name: Coral Bells • Plant type: Flowering Perennial • USDA Hardiness Zones: 4b to 9a • Height: 8" to 12" • Exposure: partial shade to partial sun • Flowers: Pink, White blooms, late spring to mid

summer • Leaf Color: Purple, Silvery, orange, red, green • Uses: Bedding Plant, containers

Signal Word

• Pesticide labels prominently display a Signal Word that tells the user how toxic the pesticide is

• Danger: – Category I pesticide, highly toxic, can cause irreversible injury,

may not be used without pesticide applicators permit• Warning

– Category II pesticide, moderately toxic can cause severe skin or eye irritation

• Caution– Category III pesticide, low toxicity, irritation clears in 72 hours or

less• No word required

– Category IV pesticide, very low toxicity, minimal effect clearing in less that 24 hours.

IV. Label information-A. Information which should appear on a label

1. Name and address of manufacturer

2. Trade name –3. active ingredients4. Type of Pesticide

such as insecticide or herbicide

5. Form of substance- dust wettable power

IV. Label information- (continued.)

6. EPA registration no

7. storage and disposal precautions

8. hazard statement

9. Directions of use

10. Net contents

•

Signal Words

• Danger: – Category I pesticide, highly toxic, can cause irreversible injury,

may not be used without pesticide applicators permit

• Warning– Category II pesticide, moderately toxic can cause severe skin or

eye irritation

• Caution– Category III pesticide, low toxicity, irritation clears in 72 hours or

less

• No word required– Category IV pesticide, very low toxicity, minimal effect clearing in

less that 24 hours.

V. SAFETY PRECAUTIONSWITH PESTICIDES

•Follow the label

•Wear appropriate clothing

•Don’t rip containers open

•Pour away from eyes

•Mix only the amount you will use

VI. FIRST AID FOR PESTICIDE POISONING

A. CONTACT DOCTOR, READ LABEL TO THEM.

Material Safety Data Sheets

• Right to Know Station• Need a sheet for every hazardous chemical used.• Provided by the chemical manufacturer when

chemical is shipped.• Gives employees information on:

– acute or chronic health effects

– routes of entry into the body

– exposure limits,

– whether the chemical is carcinogenic

– safe handling precautions

Assignment

• Complete the worksheet

• Make a table (5 rows x 5 columns) in your notebook

• Fill in with label information from 4 pesticides on the potting table

Pesticide worksheet

Brand or Trade Name

Common Name

Intended Use

Active ingredient

Signal Word

Tomorrow

• Quiz

• Biological Controls

• Flower Review

• Clean-up – wrap-up