Types of Pest Damage
Beneficial Insects
Plant Diseases
Stem & Root Problems
Insect vs. Disease
100

This type of pest removes leaf or stem tissue and often leaves holes behind.

What is a chewing pest?

100

These insects reduce pest populations and help pollinate plants.

What are beneficial insects?

100

Plant diseases are caused by fungi, bacteria, or this third factor.

What is the environment?

100

A swollen growth at the soil line is a symptom of this disease.

What is crown gall?

100

If a leaf has holes instead of spots, the cause is most likely this.

What is an insect?

200

These pests remove sap or plant juices, often causing yellow speckles or sticky residue.

What are sucking pests?

200

Known as “Aphid Lions,” this insect controls soft-bodied pests like aphids.

What is a lacewing?

200

Dark, sunken spots are symptoms of this fungal disease.

What is anthracnose?

200

Wilting in wet soil and brown, mushy roots are symptoms of this disease.

What is root rot?

200

If a leaf has spots instead of holes, the cause is more likely this.

What is a disease?

300

Borers and leaf miners fall into this feeding category because they feed inside plant tissue.

What are internal feeders?

300

This natural biocontrol agent consumes aphids, scales, mites, and whitefly nymphs.

What is a lady beetle?

300

Black circles with a yellow halo are symptoms of this fungal disease.

What is black spot?

300

Bright orange spots on leaves are a sign of this disease.

What is cedar-apple rust?

300

Sticky residue and clusters of small insects suggest this pest.

What are aphids?

400

If you see slime trails and holes in leaves, this chewing pest is likely responsible.

What is a snail or slug?

400

This insect preys on caterpillars and beetle larvae to feed its young.

What is a paper wasp?

400

Gray fuzzy mold on plants is a symptom of this disease.

What is botrytis?

400

Blackened, burned-looking leaves with a shepherd’s crook tip indicate this disease.

What is fire blight?

400

Squiggly tunnels inside leaves are caused by this internal feeder.

What is a leaf miner?

500

Fine speckling and webbing on leaves are clues that this sucking pest is present.

What is a spider mite?

500

This insect hunts aphids and moths but may also eat beneficial insects.

What is a praying mantis?

500

White powder on leaves is a symptom of this disease.

What is powdery mildew?

500

Sunken dead areas on stems or trees are called this.

What is canker?

500

Missing leaf parts and skeletonized leaves are clues of this feeding type.

What is chewing damage?