Whiteflies are posing a significant threat to a broad spectrum of crops, including cruciferous vegetables such as savoy cabbage, kale, cauliflower, broccoli, white and red cabbages, as well as celery and parsley, due to their widespread presence in Kujawy during hot weather. The issue is exacerbated by the inability to use certain insecticides, particularly those used in brassica cultivation, making the infestation more challenging to manage. The presence of adult whiteflies, eggs, and hatching larvae across a variety of vegetable crops forecasts a potentially severe problem for farmers in the coming days.