Tolerance and "Soft" Techniques ... Ways to Control Greenhouse Pests

Sunset, November 1990 | Go to article overview

Tolerance and "Soft" Techniques ... Ways to Control Greenhouse Pests


Chilly fall weather kills some pests, forces some into dormancy, and drives still others into paradise-your greenhouse. There they have the warmth, food, water, and shelter they need to prosper. But the greenhouse also offers a good environment for trying out relatively nontoxic (to you) controls.

We learned the techniques listed here from public conservatories around the West. To protect visitors, gardeners for these public greenhouses have to keep plants looking good without using many of the toxic chemical controls common in commercial greenhouses.

These "soft" (low-toxicity) controls can be applied in your own greenhouse to manage the eight most common greenhouse pests, shown above. Although our focus is insects and mites, we include one rodent-the mouse-because it can do extensive damage in some greenhouses by eating flowers and fruits.

The first steps: learn a little about entomology, a lot about tolerance

Never expect to eliminate plant damagers completely; even if you kill all adults, their offspring often left behind in the form of eggs or larvae-will come back to haunt you. it's more realistic simply to work toward keeping them under control.

Use the pictures above to garner some basic identification skills, so you can be constantly on the lookout for plant problems. Although the pests on our list take many forms, you need only recognize the general type.

Learn which plants in your greenhouse are especially susceptible to harmful insects. Gardeners at all the conservatories said they watch susceptible plants closely; some said they don't grow chronically infested kinds of plants (Abutilon is a good example: it harbors whiteflies).

Using insects to fight insects

As one gardener we talked with put it, "There's just one problem with beneficial insects used outdoors: they dine and dash." But in a greenhouse, natural control is a realistic option because you can close the door. It isn't perfect-insects come and go through cracks and vents-but they usually stay long enough to do real work. Some kinds will even breed in your greenhouse.

Because insects can multiply so quickly, you need to respond right away if a problem develops. Note when and where you spot them (they often show up on new growth first); the bug board pictured below is a good tool, used by the Sherman Gardens Conservatory in Costa Mesa, California. …

The rest of this article is only available to active members of Questia

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Note: primary sources have slightly different requirements for citation. Please see these guidelines for more information.

Cited article

Tolerance and "Soft" Techniques ... Ways to Control Greenhouse Pests
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen
Items saved from this article
  • Highlights & Notes
  • Citations
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Search by... Author
    Show... All Results Primary Sources Peer-reviewed

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.