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HORT410 - Vegetable Crops

Vegetable Quiz 3 - Production Practices

Answer each of the following 10 questions by clicking the appropriate button (A, B, C or D). A message box will appear indicating whether your answer is correct or incorrect. Test scores will then be displayed in the text boxes following each question. The ten questions can be answered in any order. But note that the scoring system used in this quiz is designed to respond only to the first answer to each multipe choice question. Thus, when a question is answered for the first time the score for the first answer will be displayed. However, subsequent answers to the same question will not be scored! Test scores are not monitored or recorded by the computer that provided this form.

    Question 1

    Which of the following is a poor cultural practice for pest control in vegetable crops:

    Crop rotation

    Tillage

    Allowing crop refuse to persist after harvest

    Monitoring for diseases and insects

    Score = out of :

    Question 2

    Flea beetles will be a problem with sweet corn following a mild winter (TRUE or FALSE):

    TRUE

    FALSE

    Score = out of :

    Question 3

    Radial cracks at the stem end of the tomato fruit can be caused by:

    Phosphorus deficiency

    Phytophthora infestans

    European corn borer

    Wide fluctuations in soil moisture

    Score = out of :

    Question 4

    In cabbage, cauliflower and broccoli, hollow stems with darkened interiors are most often caused by:

    Boron deficiency

    Magnesium deficiency

    Calcium deficiency

    Chilling temperatures

    Score = out of :

    Question 5

    Thread-like white lines on the vegetable leaf that gradually widen, are a symptom of:

    Aphids

    Armyworm feeding

    Leafminers

    Flea beetles

    Score = out of :

    Question 6

    Killing all insects (including beneficial insects) is an effective strategy for controlling aphids (TRUE or FALSE) :

    TRUE

    FALSE

    Score = out of :

    Question 7

    The insect responsible for numerous small holes on the eggplant leaf (as if the leaf has been blasted by a shot gun) is :

    Stink bug

    Cabbage looper

    Flea beetle

    Tomato fruitworm

    Score = out of :

    Question 8

    Brown leaf lesions (with concentric rings like a target-board) in tomato, are symptoms of:

    Early blight, Alternari solani

    Late blight, Phytophthora infestans

    Tobacco mosaic virus

    Southern blight, Sclerotium rolfsii

    Score = out of :

    Question 9

    Cucumber beetles are damaging to cucumbers because:

    They transmit viruses

    They transmit the mycoplasma-like organism that causes aster yellows

    They carry the bacterium that causes bacterial wilt

    None of the above

    Score = out of :

    Question 10

    Late blight (Phytophthora infestans) in potato and tomato can be spread by sprinkler irrigation:

    TRUE

    FALSE

    Score = out of :

David Rhodes
Department of Horticulture & Landscape Architecture
Horticulture Building
625 Agriculture Mall Drive
Purdue University
West Lafayette, IN 47907-2010
Last Update: 8/20/03