| GRAPEVINE |
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» Grapevine mildew
(Technical Sheet)
(See
photographs) |
| |
Although the high temperatures recorded during these
days have contributed to increase plant growth, most grapevine plants growing
in our province do not present enough development to be susceptible to fungus
infection. Weather forecast predicts possibility of rain and a descent in
temperatures for the following week; If both factors take place simultaneously
they won't favour pathogen development. So far treatments against the
disease should NOT be performed, but in case precipitations occur, disease
surveillance should be intensified.
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| APPLE TREE |
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» Oidium
(See
photographs) |
| |
First cases of damaged shoots were observed in Golden
variety apple trees. As only a few cases have been reported, its is not
necessary to take any action against the disease so far but the evolution of
symptoms should be monitored.
|
| |
» Apple scab
(See photographs) |
| |
First symptoms have not been observed yet, but they
could appear, provided precipitations and mild temperatures are maintained
(without descending significantly as weather forecast
predicted).
|
| PEAR TREE |
| |
» Hoplocampa |
| |
In the last year, pear trees were heavily damaged by
this insect. Those trees, where the occurrence of the insect was reported in
the last year and in which the consequent drop of recently set fruits was
observed, are advised to be treated.
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| PEACH TREE |
| |
» Leaf curl
(See
photographs) |
| |
The first plant samples showing symptoms of the disease
were received in the EFA's laboratory. If the
precipitations announced by the weather forecast occur, it is advised to treat
using recommended fungicides.
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| CAMELLIA |
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» Aphids
(Technical Sheet)
(See
photographs) |
| |
First aphids of the species Toxoptera aurantii.
appear when shoot development takes place. The occurrence and evolution of the
insect populations should be monitored. Depending on the environmental
conditions, if necessary, measures should be carried out to control the
disease.
|
| |
» Eriophyids
(Technical Sheet)
(See
photographs) |
| |
This is the optimal date to perform the first acaricide
application against the eriophyid mite Cosetacus camelliae
(Technical Sheet), causing camellia flower drop. Since the
authorization to use bromopropylate, the active ingredient currently used for
the control of this pest, was withdrawn by the EU on 31 December 2007, other
acaricides, such as fenazaquin and fenpyroximate, should be used (consult
technicians).
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Estación
Fitopatolóxica do Areeiro
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