Hello. Leaf twisting can be caused by a number of factors: the treatments applied (you mentioned that the symptoms started shortly after the treatments); applying the treatments during the day (in high temperatures, strong sunlight); dry wind; inadequate watering, nutrient deficiencies, pest attack (check carefully the plants) etc.
For the time being, to stimulate foliage recovery and to help plants overcome the period of stress, it is advisable to apply a foliar fertilizer such as , by spraying the leaves, in a dose of 25 ml/10 L water. You can apply 2-3 treatments, by foliar spraying, every 10-14 days. It is recommended to apply the fertilizer early in the morning. During and towards the end of the day the plants are under thermal stress and do not respond very well to the treatments applied.
Additionally, in the hot months, it is important that plants are supplied with water (avoiding excess) and nutrients. Thus, you can consider fertilizing your plants with specific products, such as , or , according to the recommendations on the label of the chosen fertilizer.
More information on tomato care can be found in our articles: Tomatoes, information about crop management, Tomatoes - fertilization at different stages of crop development and Tomatoes, treatments against pests and diseases.