WorksheetsIdentifying & Controlling Plant Disorders
Total questions: 10
Worksheet time: 5mins
Which of the following do you think caused the damage in the picture?
Scale
Caterpillars
Aphids
Fungus
What would you consider to be a mechanical method of controlling that pest?
Spray with insecticide
Introduce a predator
Pick off the pest
How world you handle this pest if you were maintaining a butterfly garden?
Use Bacillus thuingiensis, also called Bt
Apply a selective herbicde
Allow the pest to grow to maturity
What is another pest that might produce damage similar to what is seen in the photo?
Parasitic Wasp
Beetle
Lacewing
Nematode
Why do you need to know the pH level of the soil?
It determines the water-holding capacity of the soil
It affects the availability of nutrients to the plant
It determines how often the plats need to be pruned
A large Crape Myrtle has been planted in the landscape. It prefers a slightly acidic soil between pH 6.5 and 7.0. Will it do well in this landscape?
Yes
No
Which of the following nutrients are not as readily available in the landscape site you are evaluating?
Iron
Boron
Phosphorus
Since the soil on the site is listed as acid, would it be considered sweet or sour?
Sweet
Sour
Does the photo of the Dogwood to the right show signs of iron deficiency?
Yes, this is an acid-loving compound
Yes, iron is not readily available in the acidic soil
No, iron deficiency results in stunted growth
No, they symptoms of iron deficiency starts with a gradual loss of green color
What do you think is the problem?
Lack of water
Too much fertilizer
Not enough sun
