Diseases of Crabapples Test

Diseases of Crabapples Test
Please fill out your email address in the first box and your name, ISA cert. no. & specialty in the second box. Answer the questions below and when you are finished, press submit.

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Name :

Question: 1. Apple scab is favored by:
dry spring weather.
moist spring weather.
dry summer weather.
hot weather.

Question: 2. Apple scab symptoms appear as:
Olive-brown, round spots.
orange, slightly raised spots.
whitish cast to tree leaves.
gray to blackish leaves.

Question: 3. Control of apple scab is made by:
.separation of turf and ornamentals.
appropriate pruning practices.
planting in shade or partial shade.
selection of a disease-resistant cultivar.

Question: 4. Cedar apple rust is favored by:
dry spring weather.
moist spring weather.
dry summer weather.
hot weather.

Question: 5. Cedar apple rust symptoms appear as:
Olive-brown, round spots.
orange, slightly raised spots.
whitish cast to tree leaves.
gray to blackish leaves.

Question: 6. Control of cedar apple rust is made by:
separation of turf and ornamentals.
appropriate pruning practices.
planting in shade or partial shade.
selection of a disease-resistant cultivar.

Question: 7. Powdery mildew is favored by:
dry spring weather.
cool, cloudy weather.
dry summer weather.
hot weather.

Question: 8. Powdery mildew symptoms appear as:
Olive-brown, round spots.
orange, slightly raised spots.
whitish cast to tree leaves.
gray to blackish leaves.

Question: 9. Control of powdery mildew is made by:
separation of turf and ornamentals.
appropriate pruning practices.
planting in shade or partial shade.
selection of a disease-resistant cultivar.

Question: 10. The best overall treatment for dealing with the 3 major diseases in crabapples is:
using fungicides.
proper pruning.
selecting resistant cultivars.
all of the above.

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