Midterm Spring 2025 PlantSci

Identify the insect in the image

• Emerald ash borer
• Japanese beetle
• american cockroach
• german cockroach
• mosquito

Which of the following is NOT true about pesticides?

• a) They can harm humans and animals
• b) They can pollute the environment
• c) All pesticides are equally toxic
• d) Some pesticides require special training for safe handling

Tomatoes can be a field crop OR a horticultural crop

• True
• False

When is postemergence application performed?

• a) Before the crop is planted
• b) After the crop is growing and pests are present
• c) During the preplant stage
• d) During the preemergence stage

What does the LD50 method measure?

• a) Pesticide toxicity through oral exposure
• b) Pesticide toxicity through dermal exposure
• c) Pesticide toxicity through inhalation exposure
• d) All of the above

Which insect order includes flies and mosquitoes?

• Diptera
• Hymenoptera

Rockwool is a spongy fibrous material made from rocks

• True
• False

If you have a fertilizer with the concentration 10-8-14 how much phosphorus do you have?

• 10 %
• 8 %
• 14 %

If you have a fertilizer with the concentration 10-8-14 how much banana chemical (potassium) do you have?

• 10
• 8
• 14

Should you position the air pump above the tank level or below?

• Above
• Below