1 In which plant has the brown marmorated stinkbug been most commonly found in Oregon?
a. Tree of heaven
2 Which of the following features cannot be used to distinguish spotted wing drosophila from the common fruit fly?
a. Dark bands on the forelegs
b. Spots on the wings
c. Larger size of female
d. Red eyes
e. Serrated ovipositor of female
3 Which of the following pesticide classes is the most rainfast?
4 Fruit damage by apple weevil adults resembles:
a. Bitter pit
b. Frost injury
d. Pink end
5 What density of traps is recommended in California and Washington for monitoring grape mealybug in vineyards?
a. 1 per 30 acres
b. 3 per acre
c. 10 per acre
d. 1 per 10 acres
6 Which is the most cost-effective way to control gophers?
a. Trapping plus fumigation
b. Gas explosive device
7 Mating disruption is used to control codling moth on how many acres worldwide?
a. 1 million
8 Which of the following pesticides is the odd one out in terms of mode of action?
a. Actara (thiamethoxam)
b. Assail (acetamiprid)
c. Rimon (novaluron)
d. Clutch (clothiadim)
e. Calypso (thiacloprid)
9 One barn owl can eat how many pocket gophers per year?
10 What’s the best location for a bat house?
a. The side of a building
b. In a tree
c. On a pole
d. On the ground
e. On a roof
Do you know your pests?
Q1: d. Oregon State University entomologist Dr. Nik Wiman has most commonly found brown marmorated stink bug in English holly. (“Stink bug is strong flier,” March 1, 2013)Q2: d. All species of drosophila have red eyes.
Q3: c. (“Rainfastness of pesticides varies,” March 1, 2011)
Q4: b. (“Researchers tackle apple weevil,” March 1, 2011)
Q5: a. (“Trapping for grape mealybug,” March 1, 2012)
Q6:. a. A University of California study estimated the costs of the treatments at $252 per acre for trapping plus fumigation; $396 an acre for using a gas explosive device; and $420 for baiting. (“Effective gopher control,” March 1, 2010)
Q7: b. (“Promising new technologies for mating disruption,” March 1, 2010)
Q8: c. All the insecticides except Rimon have the same mode of action. (“Pear IPM tools,” March 1, 2009)
Q9: b. An owl eats about 155 a year, with owlets eating five times that amount. (“Rodent-eating machines,” March 1, 2009)
Q10: a and c. (“How to build a bat house,” March 1, 2009)