Agriculturalist Andrea Porto has forecasted a significant loss of 20-30% in the upcoming Bronte Dop pistachio harvest due to five months of drought and high temperatures affecting the plant life. The drought has caused stress to the plants, resulting in underdeveloped fruit and empty shells, necessitating a delayed harvest start of around September 10 to allow for full fruit development. Despite the potential supply shortage, Porto remains cautious about the possibility of escalating prices, which could negatively impact related industries.