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Pests monitoring and scouting in banana. End. Next. Scouting procedure. Scouting Map example is a rather large image sized at 750px by 525px (pixels). It is displayed in a landscape format and is meant to represent an 8½" x 11" (inch) piece of paper. - PowerPoint PPT Presentation
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Scouting procedure
Scouting Map example is a rather large image sized at 750px by 525px
(pixels).
It is displayed in a landscape format and is meant to represent an 8½" x
11" (inch) piece of paper.
On this Map is the following (starting in the upper left):The
Document title:
“Green Methods Scouting Map Example”
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This is for the date of inspection and the inspector’s name.
For this example: 6/14/2005; Watson, B.
There is also a small check box (upper-right) for the purpose of “marking”
the whole document to indicate there are noted items on the map.
A Map Key:
Green triangle representing a “flagged” plant and a yellow square
representing a yellow sticky trap.
Date and Name Field:
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More Fields:
Greenhouse name, Structure number (optional of course), and
Crop: For this example: Pest-Free Gardens, #3, Bedding,
respectively.
That makes up the top 15% of the document.
What follows is a large rectangle representing a greenhouse.
In the shape are additional rectangles which are meant to be
greenhouse benches.
The greenhouse shape is broken down into eleven (11) sections
of 250 square feet each. Next Previous End
here are two benches in each of these sections, with exception
to section “K.”
This makes the bench count at twenty-three (23).
The latter is a long work-type bench located on the
vent end/back-wall of the structure.
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Being that one section should be 250 square feet, the total size of this
greenhouse is roughly 2750 square feet.
There is one “flagged” plant and one sticky trap in each section.
The sections are labeled A-K, the benches are labeled 01-22 (the work
bench is not numbered). Each section has a small check box allowing it
to be “marked” to refer to later. This indicates that area has some issue.
Further markings can also be made to indicate where in a marked area
pests were found, more specifically.
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Below the image are a number of fields looking for inputted
data.
The fields are as follows:
Notes: Great the general notes. In this case the weather of
the past week was commented on “Hot and Humid” and a
general summary is given: “Things are looking’ good.”
Section Fields (A-K) and “Other.”
The Other is marked in this case as outdoor locations right
outside the structure.
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In this example sections D, H, K and Other are marked in
red ink (versus blue used elsewhere) detailing the
problems in those areas.
Specifically: D = Possible powdery mildew;
H = Mites found on bench 16;
K = Gnats found near potting table;
Other Area = Grasshoppers noted in numbers outside
the back end-wall of the structure.
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Another “Notes” field where details can be
given regarding observations, corrective
measures, and even things to do.
In this example it was noted that
“Aphidius” had been put out, that
“Fallacis” and “nematodes” need to be
ordered, and that Section D needs a
copper-sulfate treatment.
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Source: GreenMethods.com Next Previous End
Banana Sucking Pest Scouting and Monitoring
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Monitoring Traps for banana aphids
Yellow Sticky Traps
Sticky traps are quite valuable to growers. They
are used for one of two things:
Trapping or monitoring.
Putting traps out in numbers can be effective in
reducing airborne adult populations of certain
pests like aphids and whiteflies and fungus
gnats by trapping them.
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Blue Sticky Traps
If used at the rate of one trap per 250
square feet, though — or one per 1000
square feet in larger or monoculture
greenhouses — and checked, pests
counted, on a regular schedule, changed
as needed, and the results charted,
sticky traps can be an effective
monitoring tool.
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Magnifiers & Scopes
Mini Scopes
A common 30-power mini-scope
can be very helpful to scouts.
Using a unit like that shown in the photo,
place the scope over the bug or
eggs, turn on the light, peer inside,
adjust the focus wheel, and see all,
with remarkable clarity.
These are fairly low-priced units and really
worth their weight to a serious
scout.
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Magnifying Glasses/Loupes
In response to the small field of view drawback of
the mini scope above, a low-power, 25x, jewelers’
loupe or common hand lens is also good thing to
carry.
In the field, anyway. If you’re a mid-size or large scale grower, it
might be a good idea to get a fixed unit, next.
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Stereoscopes
The stereoscope or dissecting microscope, identifiable by its two eye-
pieces instead of one common to most microscopes, is the scout’s best
friend it they have a lab or bright place in the head-house.
The advantages are typically better quality and a larger field of view
over the above-mentioned and comparable powerful handheld mini-
scope.
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Weekly scouting and disease records
Well-managed farms scout field weekly to estimate disease severity or
"youngest leaf spotted.“
Thus provides a quantitative record how effective the disease control
program is and also when to apply the next fungicide application, and can
also help to detect the possible emergence of fungicide resistance in the
pathogen population.
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Scouting and Record keeping
Scouting, which is the monitoring of pest populations and crop developments,
is a fundamental activity in implementing IPM.
It improves a grower's ability to make sound pest management decisions
through knowledge of the pest and natural enemy populations.
If used carefully, scouting will help prevent crop damage while eliminating
unnecessary pest control treatments
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At large banana farms, scouts monitor for black leaf streak disease
levels weekly.
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Then, fungicide spray applications are scheduled based upon the data
collected. Shown below is an international disease rating scale used by some
farmers.
The idea is to scout fields regularly looking for plants of the same age (to be
determined by the farmer, although plants pre-flowering are best) and gathering
and recording disease information, usually on a sheet of paper on a clipboard.
Some farmers simply collect data on "youngest leaf spotted" (youngest leaf
showing symptoms, based on the idea that if young leaves become heavily
diseased, then bunch yield and fruit quality will be very low.
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Scouting - monitoring or investigating.
Scouting procedure
•The document title•Date and Name Field•A Map Key•More Fields
Monitoring:Monitoring Traps for banana aphids by using Yellow and Blue Sticky Traps.Magnifiers & ScopesMagnifying Glasses/LoupesStereoscopesWeekly scouting and disease recordsScouting and record keeping
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