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Grapevine and Apple tree |
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Grapevine and Apple tree |
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Grapevine, Apple tree and Pine |
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Grapevine, Apple tree, Oak and
Pine |
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Grapevine, Apple tree and Oak |
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Grapevine |
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Grapevine, Apple tree and Several
crops |
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Grapevine, Apple tree, Stone fruits and
Maize |
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Grapevine, Apple tree and
Maize |
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Grapevine, Apple tree and Chesnut
tree |
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Grapevine, Apple tree and Chesnut
tree |
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Several Crops, Grapevine and Walnut
tree |
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Grapevine and Apple tree |
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Grapevine, Apple tree, Several crops and Forestry
species |
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Grapevine and Apple tree |
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Grapevine, Apple tree y
Cítrics |
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Grapevine, Apple tree, Quince tree and
Camellia |
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Grapevine, Kiwi plant and
Camellia |
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Grapevine and Apple tree |
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Grapevine |
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Grapevine, Apple tree, Peach tree and
Evonymus |
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Grapevine, Various Crops, Kiwi plant, Oak and
Camellia |
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Grapevine and Apple tree |
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Grapevine, Apple tree and Oak |
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Grapevine |
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Grapevine |
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Pine, Apple tree, Stone Fruit Trees and
Ornamentals |
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Fruit Trees, Grapevine and Devices to apply
Phytosanitary Products |
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PHYTOSANITARY WARNING
16/07/2009
GRAPEVINE Phenological stage:Bunch
closure |
Mildew: |
Unstable
environmental conditions occurring at present, still favour the development of
the disease, and in fact untreated plants show new symptoms of the disease,
both on leaves and bunches. In our monitoring plots the disease is controlled,
but in the laboratory we are receiving several samples with untreated mildew on
the bunch. Thus, and given the severity of the disease in the last few weeks,
we should treat if the previous protection period is about to conclude or
in case new symptoms are observed. Applications should be mainly
focused on bunch protection.
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Oidium: |
New symptoms have
been only observed on sucker shoots. However, in case the grapevine is not
protected, it will be necessary to apply an antimildew treatment; a funguicide
antioidium is adviced to protect bunches at this phenological
stage.
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Botrytis:
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Some bunches
which have been severely affected by mildew show skin cracks through which the
fungus can penetrate. In those grapevines showing the disease and/or in
those highly sensitive varieties a preventive treatment directed to the bunch
must be applied.
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Moths: |
The number of
captures in the traps is still low, only eggs or larval penetrations are
occasionally observed. It is not necessary to treat.
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Green mosquito and
other cicadellidae: |
The
captures of Zygina rhamni in the traps have been higher than last
week's. However, given the current population it is not necessary to treat
yet.
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Mites: |
In
general, symptoms related to mite presence have remained unchanged. We have
also received the first leaf samples with specimens of Calepitrimerus
vitis (rust mite). Surveillance should be increased, but in case
symptoms are observed and if specific monitoring is not carried out, now it
is necessary to treat.
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Wood diseases: |
Plants with
symptoms of any wood disease should be marked to differentiate them from the
rest when carrying out opportune measures.
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APPLE
TREE |
Scab: |
We have observed symptoms of the disease, mainly on most tender
leaves. It is advised to keep the plants protected
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Cydia
pomonella: |
The number of
captures recorded during this week has been higher; thus it is necessary
to treat to avoid larval penetrations
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Red
spider: |
We have
been receiving samples of apple trees, mainly belonging to Reineta variety,
with abundant populations of red mite. We recommend treating if leaves show a
bronzed appearance, which is characteristic of the mite
attack.
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OAK |
Altica
quercetorum: |
According to
the information given, we have been observing symptoms of attack of these
defoliator coleoptera. The only phytosanitary products recommended by the
Ministry for the control of these insects on oak are deltamethrin (controlling
adults and larvae) and flufenoxuron (against larvae).
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