Notiziario olivicolo Emilia Romagna 10 luglio 2026

Subscribe to the Aipo YouTube channel to stay updated - Newsletter No. 27 of July 10, 2026 - Phenological stage: Olives have reached an average of 40-45% of their final size and are completing the first phase of growth. Stone lignification has begun in many groves, with a steady progression consistent with this season's climate. Variability between plots is primarily related to exposure and water availability. Olive fruit fly (Bactrocera oleae): Weekly monitoring confirms limited captures, with the presence of tasting punctures and rare egg-laying, mostly on table varieties. However, the olives are fully susceptible, and the drop in temperatures accompanied by an increase in humidity recorded in early July may have favored adult activity. Careful monitoring is therefore necessary, especially in more exposed groves or with very airy canopies. For those adopting anti-spawning and repellent strategies based on rock dust, kaolin, bentonite, zeolite, or basalt, now is the right time to intervene. Mixtures should be prepared with the addition of wetting and adhesive agents to ensure uniform coverage of the canopy, including the inner parts. It is essential to check the calibration of the sprayers to ensure even distribution of the drops and avoid dripping onto the ground. In addition to the anti-spawning effect, the whitish film that forms on the vegetation protects the fruit from heat stroke, reduces evapotranspiration, and helps maintain more stable moisture in the plant tissues. For those using mass trapping, trap placement should be completed as soon as possible: timely deployment allows the adult population to be reduced before weather conditions become more favorable for the fly. Margaronia: Limited presence of this lepidopteran moth has been recorded both in young orchards and in productive olive groves. If necessary, treatments can be performed with Bacillus thuringiensis-based formulations, which are effective in the early larval stages. Fungal parasites: Peacock spot has been observed in several olive groves, especially where spring treatments were not performed. If necessary, it is advisable to use copper-based products, oxychloride, or copper oxide, possibly combined with liquid sulfur, which are also useful in controlling lead rot, olive leaf spot, and olive scab. It is recommended to perform treatments during the cooler hours of the day. Among the less impactful alternatives, although less effective, is potassium bicarbonate, which raises the pH of the leaf surface, creating an environment unfavorable to the growth of fungi. Hail: In the event of hailstorms, it is advisable to intervene within 24–36 hours with copper-based products to disinfect the wounds and promote healing. The combined use of Dentamet and wood distillate can support vegetative recovery and the plant's self-defense against scab. Association technicians Spada Oraziono and Pierluca Turchi are available for advice and further information. Tel. 045 8678260 @aipoverona Subscribe to the Aipo YouTube channel to stay updated -