Mango is the most exported fruit of Brazil, especially grown in Sao Francisco Valley (tropical semiarid) where there is high temperatures and low air humidity, a condition that can cause stress to plants. Thus, the current study aimed to evaluate the effectiveness of different sunblocks to alleviate the abiotic stress of "Palmer " mango trees grown in a semiarid environment. The experimental design consisted of randomised blocks with six treatments, four repetitions and three plants per plot. The treatments consisted of different strategies of sunblocks as follows: (T1) control (no sunblock); (T2) calcium carbonate (50 g . L-1); (T3) sunblock (5 mL . L-1); (T4) sunblock (5 mL . L-1) + calcium carbonate (50 g . L-1); (T5) sunblock (5 mL . L-1) + sunblock silicon concentrated (20 mL . L-1) and (T6) sunblock (20 mL . L-1). The results indicate a clear action of sunblock in attenuating the abiotic stress of mango, with a persistent effect with time elapsing, considering the evaluated interval. The sunblock clearly promotes a differentiated leaf coverage pattern, protecting the photosynthetic apparatus and increasing its performance and consequently improving the production of plant reserves. The use of calcium carbonate individually promotes a very short protective effect, without positive reflexes after a few days of application. Mango fruit yield is affected by the sunblock with an increase of 4.2 t . ha(-1) from the treatment with sunblock (20 mL . L-1) in relation to the control treatment.