Plant Disease and Pest Management Quiz

What is the main cause of Botrytis - Gray Mold in plants?

• Overwatering

• Low temperature

• Poor drainage

• High humidity

Which disease is caused by soil inhabiting fungi and affects the seeds, shoots, stems, and leaves of plants?

• Powdery Mildew

• Damping-off

• Downy Mildew

• Botrytis - Gray Mold

What is the main symptom of Downy Mildew on plants?

• Small round spots on the stem and flower petals

• Powdery white-gray growth on the plant's surface

• Yellow spots on the underside of leaves

• Fluffy growth on the top side of leaves

Which disease is very common in roses and causes black spots to appear on the leaves?

• Leaf Spot (Black)

• Root Rot

• Rust

• Stem Rot

What is the main prevention strategy for Powdery Mildew in plants?

• Overcrowding plants

• Low humidity

• Properly ventilate greenhouse

• Overwatering

What is the main symptom of Root Rot in plants?

• Yellowing and curling of leaves

• Black spots on the stem

• Small round pustules on the underside of leaves

• Decreased growth and limp roots

Which disease is characterized by small round pustules forming on the underside of the leaf?

• Stem Rot

• Leaf Spot (Black)

• Tospovirus (INSV & TSWV)

• Rust

What is the main cause of Stem Rot in plants?

• Low temperature

• Overwatering

• Poor drainage

• High humidity

Which virus is commonly seen in the greenhouse industry and can be transmitted by thrips from plant to plant?

• Botrytis - Gray Mold

• Tomato Spotted Wilt Virus (TSWV)

• Downy Mildew

• Impatiens Necrotic Spot Virus (INSV)

What is the best prevention strategy for Tospovirus (INSV & TSWV) in plants?

• Isolate and inspect new plants for symptoms

• Use chemical fungicide

• Reduce relative humidity

• Properly ventilate greenhouse