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Monitoring Operations
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Work on the land after the harvest - Grass is not allowed to grow between the rows, except for environmental purposes; however, in that case it should be contained by repeated cutting, so as to limit excessive water intake or competition between root systems; in the event of ailment symptoms, the grass layer must be removed immediately using harrows or clod smashers. During the first two-year growth period, it is vital to harrow periodically, often enough to keep weeds to a height of not more than 30 cm. With regard to the equipment, it is preferable to use a disc harrow or a tined cultivator and to absolutely avoid rotavators because of their negative effect on compaction and on the formation of the soil-working surface. Plant protection - Plant protection treatments must only be carried out according to the needs of an individual event and must not be regarded as the basis for general prevention programs. The amounts and dosage of all active ingredients must be used as specified on their labels. All products with a broad spectrum of action should be avoided and therefore all the low- environmental-impact techniques foreseen by national and regional authorities should be implemented, even if there are no specific regulations for poplars. Special attention should be paid to poplar Chrysomela (Melasoma populi). If, during the month of April, a relevant presence is detected, it should be treated promptly with pyrethroid or nicotinoide based products, so as to prevent any further reproduction of the insect. In any event, treatment should be carried out only after the damage limit has been exceeded, which should be checked on periodically by the expert in charge. Every operation carried out and product used must be noted in the treatments record. All equipment used for the treatments must comply with the current safety regulations. Grass infestations higher than 30 cm must be eliminated, as they host the Poplar Longicorn (Saperda carcharias). Whenever possible, biological means, such as the Bacillus thuringiensis spp, should be used. |

