Studies related to application technology indicate that, for cancer control, in applications carried out every 14 or 21 days, doses of up to 0,7 to 1 kg of metallic copper per hectare can be used. Regarding the volume of spray solution, the variation can be from 40 to 70 mL/m³, with the largest volume being indicated for joint management with early blight. These adjustments allowed an average reduction in the spray volume in adult orchards from 3 to 5 thousand L/ha, previously practiced, to 1 to 2 thousand L/ha.
Information on the susceptibility period of the fruits was also important in contributing to the definition of the critical period of copper protection. Applications must occur until the fruits reach 5 cm in diameter. After this phase, the fruits are resistant and applications should only be made to protect the main shoots during the summer.
Find out more about reducing the use of water and products to control the main citrus pests and diseases by accessing here.
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An adjustment was made to the corn cultivation cycle depending on the variation in temperatures in this second harvest period
