There are keys for pipfruit
and stonefruit. They are designed
for optimum clarity and ease of use with a screen setting of 800 x 600 and
Arial font.
Within each crop, two separate keys are provided, one for
the insects found in orchards and one for the damage
caused by pests. They are constructed like a family tree
and you move down the tree as you choose the options
presented to you.
Options for moving forward in the key (down the tree) are
presented as highlighted words
or as pictures or drawings which you can select. As you
move your mouse, the arrow will change to a hand wherever
these options occur and a lefthand click of the mouse
will select that option.
When you click on colour pictures, you will either be
presented with more pictures or a blow-up of the picture
in front of you. Clicking on the bigger picture usually
returns you to the smaller one.
There are several ways of moving backwards in the
key:
The first and most common way is to click on this
symbol . This takes you one step back up
the tree but is different to the "back"
button in your browser, which will reverse the
step which you have just taken, regardless of
what step that was.
Another is to click on bold
highlighted text. This is used at the
beginning of the key, before colour images
appear.
Thirdly, if you feel lost in either of the keys,
left-clicking on this symbol
will return you to the start.
The two keys within each crop are linked so that:
you can view the damage caused by an insect you
have found, or
view the insect which causes the damage which you
have found.
Clicking on this symbol
will take you to the other key.
The insect key
The insect key does not include all insects ever found in
orchards but concentrates on pest and beneficial species.
It also includes some overseas pests and beneficial
species which are important in orchards.
When you have used the key to identify an insect, you
will usually be presented with an option to look at other
stages of the same insect. Clicking on this symbol and/or
the associated word (e.g. egg)
will take you to pictures of that stage.
The damage
key
Pictures of the damage by each pest are accompanied by
descriptive text. Clicking on the highlighted
words in the text enable you to see the other
kinds of damage caused by the pest.
Future
development
It has not yet been possible to include pictures of all
the images required for the key. These will be added as
they become available. In the meantime, you will come
across blank green images in place of them.
The keys are being linked to information on the life
cycles, ecology, and management of orchard insects. At
this stage sixteen examples only are included to
illustrate the future development of the project. At
present, these refer to pest management in pipfruitbut
much of the ecological and biological information is also
applicable to stonefruit
orchards.Where you see this symbol in the
insect and damage keys, you can click on it to transfer
to the information sections. Similarly, when you are in
the main information menu for an insect, you can transfer
to that insect or its damage in the Keys by clicking on insect or damage.