Polish growers receive July guidance for tomato cultivation and spider‑mite control
For July tomato production in Poland, growers are advised to regularly prune side shoots (“wolves”) and remove lower leaves to improve airflow and reduce disease risk. Adequate soil moisture, balanced pH around 6.5, and mulching are recommended. Fertilisation should emphasise potassium, phosphorus and calcium, with reduced nitrogen, using mineral, organic or compost amendments to promote larger, sweeter fruits and prevent root‑stock and blossom‑end rot.
During hot, dry periods, the two‑spotted spider mite (Tetranychus urticae) can rapidly infest crops, feeding on the undersides of leaves and impairing photosynthesis. Early detection requires inspecting leaf undersides for tiny pale specks, webbing, and leaf yellowing. Effective control relies on specific acaricides rather than standard insecticides, with attention to the mite's life stage when selecting products. Rotating active ingredients and complying with pesticide registration rules are essential to protect yields.
Combined, these practices aim to sustain tomato health and yield while mitigating pest damage under July's high‑temperature conditions.