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Non-Infectious
Diseases
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Abiotic plant problems are those
factors caused by other than living (biotic)
agents. Abiotic factors include environmental
conditions such as extreme temperatures, excess or
lack of water, light, or nutrients, and abnormal
conditions such as drought, flooding, and/or
adverse cultural practices. Cultural practices may
cause damage due to soil compaction, drifting of
herbicides used to control weeds, and mechanical
injury such as bark damaged by a lawnmower.
Additionally, plants may have genetic
abnormalities. All these factors, and many more,
may create symptoms that appears to be caused by a
plant disease. Inspection of the plant tissue is
necessary in determining the cause of the plant
damage.
Non-Infectious
Factsheets are
available to view or download. They list useful information
about a specific plant problem and provide symptom descriptions
and any available control recommendations.
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How
to Submit an Abiotic Sample:
(Also check out
the
Sample
Submission page for
important additional
information.
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- The sample to be submitted
should contain all parts of the plant
when possible.
- Wrap the sample in a paper bag
or newspaper and package it in a sturdy
box.
- It is important that you try to
collect the sample prior to any
pesticide applications. Once pesticides
have been applied it may be difficult
to obtain an accurate diagnoses.
- It is helpful if the sample is
taken from an area that has early
symptoms of the problem. Areas that are
completely dead often contain a number
of secondary organisms that may hinder
the detection of the primary pathogen.
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Mail the sample as
quickly as possible! If the sample can not be
mailed immediately, keep it refrigerated or out of
direct sunlight.
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When submitting samples for analysis,
please keep a few things in mind:
- Always fill out the "Submission
Form". Providing as much
information on the form as possible will help in
ensuring an accurate diagnosis of the problem.
Make sure you include the form with your
sample.
- You may want to keep a copy of the form
for your own records.
- Please feel
free to call the clinic with any questions prior
to your sample submission.
- For faster response, include your fax
number or email address and indicate how you
would prefer to receive the results.
- Please include a check for the
appropriate
fee
made out to Cornell University.
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PDDC Homepage,
Departments
of Plant Pathology, Fees,
Sample
Submission, Diagnostic
Fact Sheets, Cornell
University,
CALS,
Cornell
Cooperative Extension ,
IPM
in New York State, Plant
Pathological Terms
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