IML Ento Lesson 6

What does the signal word on a pesticide label indicate?

• The effectiveness of the pesticide

• The toxicity level of the pesticide

• The price of the pesticide

• The expiration date of the pesticide

What is the LD50?

• The amount of pesticide needed to cover 50 acres

• The legal limit of pesticide use

• The amount of chemical necessary to kill half (50%) of a test population

• The recommended dosage of pesticide per plant

Which class of insecticides is labeled with the signal word "Warning" and has an oral LD50 rating of 50–500 mg/kg?

• Class I

• Class II

• Class III

• Class IV

What should be worn to protect oneself from the toxicity of pesticides according to the text?

• Casual clothing

• Protective clothing

• No clothing is necessary

• Thermal clothing

Is certification required to handle a particular pesticide if its label states that it is for general use?

• Yes, certification is always required

• No, certification is not required if the label states it is for general use

• Yes, but only for Class I pesticides

• No, certification is only required for restricted use pesticides

Which chemical listed under Organochlorine Insecticides has the highest oral LD50 value?

• aldrin

• chlordane

• heptachlor

• methoxychlor

What is the dermal LD50 value for diazinon under Organophosphorus Insecticides?

• 900 mg/kg

• 2335 mg/kg

• 404 mg/kg

• 54 mg/kg

Which of the following is not an example of a Carbamate Insecticide?

• aldicarb

• carbofuran

• mesurol

• binapacryl

According to the table, which chemical has an oral LD50 value greater than 4,000 mg/kg?

• parathion

• carbofuran

• caffeine

• permethrin

What is required for handling restricted use pesticides according to the text?

• A special training course and passing a test

• A general knowledge of pesticides

• Only a license without any training

• Direct supervision without certification