the Pear tree It is a culture widely introduced in Europe and, above all, in Spain. It is a deciduous tree that needs cold weather, so it is usually grown in cool areas and an adequate accumulation of cold hours.
In terms of pests and diseases, it is a rather particular crop, given that it has been introduced for many years and various difficult-to-manage diseases.
Therefore, many trading houses have allocated significant resources for allow active ingredients intended for the treatment of pear trees.
In this table you can find some recommendations for handstand treatments for Disease prevention and control depending on the phenological state.
|phenological state||plague or disease||active ingredient||Trade name||Comments|
|A||Aphids / Psila / Erinosis||paraffin oil||Various|
|A B||Mottled / Cankers / Bacteriosis||Copper||Various|
|CD||Mottled / Cankers / Bacteriosis||Copper (half dose)||Various|
|CD||Erinosis||Wettable Sulfur Fenpyroximate||MiscellaneousFlash UM*||*Perform only one treatment per year.|
|CD||aphids||FluconamidePirimicarb||Teppeki, AfintoAphox, Kilsec|
|g||Spotted||CyprodinilCyprodinil+FludioxinilDifenoconazoleDodineKresoxim-methylTebuconazoleTetraconazoleTrifloxystrobin||ChorusSwitch, Astound*Score 25 EC, Lexor, CoreSyllit Flow, Syllit MaxStroby WG, Dedalo WG, DiscusFolicur 25 WGEmerald, GalileoFlint, Consist||Type of action: penetrating or systemic. In case of mottling, they prevent the progression of the fungus within 36 to 72 hours after the onset of rain. Alternate the use of fungicides from different families to avoid resistance.* Also fights against the monilia|
|g||Monilia||Boscalid+pyraclostrobinCiprodinil+fludioxonil||Bellis*Switch*, surprise*||*Orders also speckled|
|g||strainphylium||Cyprodinil+FludioxynilFludioxonilKresoxim-methylTrifloxystrobin||Light switch*, Astound*GeoxeStroby WG, DiscusFlint, Consist||*Also controls monilia|
|g||aphids||FlonicamideLambda-cyhalotrinPymetrozineSpirotetramat||Teppeki, AfintoKarate Zeon*, KendoPlenum*Movento Gold**||*Also controls psyllid and maggots.Maximum one application annually.**Apply from petal fall until early ripening. It also has a controlling effect on psyllid and scale insects.|
|From fruit set ACCORDING TO ENTRAMPAS CAPTURES||Verious||Spinosad, Abamectin + chlorantranilipol Chlorantranilipol||Spintor 480 SCVoliam targo**Coragen** , Voliam**||*Effect against aphids and psyllid.**Also controls psyllid and leaf minersMaximum of two applications per year.|
|Throughout the vegetative period BY ACCOUNT||psyllid||Abamectin Spirotetramat Spinetoram||VertimecMovento GoldDelegate WG*||*Perform only one treatment per year, it also controls worms.|
|50% leaf fall||Spotted||Copper + Urea||Various||General dose: 1 kg of copper and 10 kg of 46% deurea for 100 liters of broth.|
Source of information: bizkaia.eus
At the crop level, the main treatments in pear trees are centered on the fungus prevention and treatmentbecause if the atmospheric conditions for its development are met, its control is very complicated.
Thus, the application is recommended after 10-12 days, combining different active ingredients to avoid the appearance of resistance.
Source of copper for the prevention and control of pear diseases
Copper is a material that can be interesting to use, especially as a preventive measure. Due to maximum quantity restrictions in their application, more and more are being used complexed forms of coppers nutritional values (less than 9% w/w) in pear treatments.
Different forms of organically complexed copper, such as gluconate or heptagluconate, have been shown to be able to introduce a significant amount of copper at the cellular level, even above other phytosanitary formulations.
In general, nutritional copper applications are usually recommended at the onset of budding. To promote leaf fall or preventive activity in the wood and greater persistence in the tree, there is a tendency to use phytosanitary forms of copper mixed with ureawhich promotes the rapid decomposition of leaves fallen to the ground and slows down the persistence of fungi in the soil.