Signs vs Symptoms
This term describes visible evidence of a pest, such as insects or webbing.
What is a sign?
Using predators or parasites to control pests is called this.
What is biological control?
This sticky residue left by aphids is called this?
What is honeydew?
These insects should be protected because they help control pests.
What are beneficial insects?
This term describes how a plant responds to damage, like yellowing or wilting.
What is a symptom?
Spacing plants properly and removing plant debris are examples of this control type.
What is cultural control?
This type of damage caused by spider mites looks like tiny speckles on leaves.
What is stippling?
This is the point where pest numbers are high enough that action is needed.
What is a threshold?
Yellow leaves caused by nutrient deficiency are an example of this.
What is a symptom (or environmental stress, accept either)?
Using traps, barriers, or hand-removal of pests is called this type of control.
What is mechanical control?
If you see webbing under leaves, this pest is most likely responsible.
What are spider mites?
You identify aphids in your greenhouse, but plants are healthy. IPM says you should do this first.
What is monitor / do nothing yet?
Seeing aphids on a leaf is a sign, but curled leaves caused by aphids are this.
What is a symptom?
This IPM control method uses pesticides and is usually a last resort.
What is chemical control?
Silver or bronzed streaks on leaves are commonly caused by this pest.
What are thrips?
Spraying without identifying pests first could accidentally kill these helpful organisms.
What are beneficial insects?