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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
13/08/2009
GRAPEVINE Phenological stage:
veraison |
Mildew: |
Due to the warm
environmental conditions and the high temperatures recorded during these days,
mildew spots observed last week have remained unchanged. Even in plants that
were untreated along the year the infection is under control and there is not
sporulation. Thus, while the environmental conditions remain unchanged the risk
is very low, even more bearing in mind that in the veraison stage (not totally
generalized) bunches are not affected by the disease.
|
Oidium: |
At the veraison stage
the fungus does not damage bunches and symptoms are only observed in those
bunches named sucker shoots and also in some leaves from plots in which
symptoms have been already observed.
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Botrytis:
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Dry conditions
observed during these days, which are expected to extend until next week, have
not favoured the occurrence of new symptoms. However, we know that along the
varaison-ripening stage, the disease could affect harvest, thus monitoring
should be maintained, especially in those vines showing any type of lesion on
the berries.
|
Moths: |
The number of
captures in the traps was similar to that observed during last week, but
once again an increase on the number of larval penetrations was
reported, not only for the direct damages produced but for its
incidence on botrytis.
|
Green mosquito and
other cicadellidae: |
Treatments
applied to those plots in which the threshold of tolerance has been reached
have been very effective, highly reducing their populations to levels almost
inexistent. Regarding Scaphoideus titanus, we have not captured new
specimens along this week, but monitoring should be
maintained.
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Mites: |
Along this week we
have not observed any additional symptom or populations on leaf samples.
Neither in those samples submitted to Areeiro we have observed any signs of the
aphid presence. Monitoring should be maintained and we should not treat
unless its presence is confirmed.
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APPLE
TREE |
Scab: |
In spite of the environmental conditions observed during these
days in most areas, in the monitoring plot in Lalín intense dew has been
recorded and has favoured the apparition of new symptoms on terminal leaves.
Thus, we have decided to renew the treatment and the same should be done
in other plots with similar conditions. In case they are treated we must be
aware of the security term of the fungicide selected in the earlier varieties.
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Cydia
pomonella: |
The number of adults collected in the traps was enough to
justify a new treatment to avoid damage to the fruit (it is necessary
to choose insecticides with a short safety term in the earliest varieties).
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Woolly
aphid: |
We are
still observing an increment in the level of parasitism of Aphelinus
mali, thus if the activity of the parasitoid is observed it must not be
treated with insecticides.
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Red
mite: |
Environmental conditions observed along this week have favoured
the development of the red spider; however, in general mite populations have
not increased. Monitoring should be maintained, bearing in mind that mite
presence should be confirmed before treating.
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