The objective of this study was to evaluate the effect of hydrotherapy associated with refrigeration on the control of peduncular rot in mango fruits (Mangifera indica) of the Tommy Atkins variety. For this, an experiment was set up in the phytopathology laboratory of the Agrarian Sciences Center of the Federal University of Alagoas - UFAL - Delza Gitaí Campus - Rio Largo - AL, from June to December 2018. Mango fruits, previously inoculated with L. theobromae (106 con.mL-1), were immersed in warm water at temperatures of 40, 45, 50 and 55°C for 1, 5 and 10 minutes and then placed under refrigeration for 5 days, then evaluated for disease severity. The results show that hydrotherapy associated with refrigeration is able to control peduncular rot in mango fruits. The temperatures of 50, 55 and 60ºC in the time of 9 minutes of fruit immersion showed 100% control of the disease, in the time of 1 minute only the temperature of 60ºC presented control superior to 90% of the disease, the temperatures of 45 , 50 and 55 presented control of 74.6, 76.2 and 89%, respectively. In the time of 5 minutes, the temperatures of 55 and 60ºC were the best with control superior to 90% of the disease. In all immersion times, the equation that best fit the data was the 3rd degree polynomial. The temperature of 40ºC, in all evaluated times, was the only one that presented control of the disease inferior to 20%.

The objective of this work was to evaluate the thermal and biological treatment efficiency of anthracnose (Colletotrichum musae) in banana cv. 'Pacovan'. Three experiments were set up in the laboratory, the first "in vitro" to select the isolate of Trichoderma spp. which had greater mycelial inhibition on plaque, the 2nd "in vivo" was biological control using 2 races of Trichoderma spp. and the 3rd in vivo varying temperatures and exposure times of banana fruits contaminated with Colletotrichum musae. Positive treatments (using fungicide) and negative treatments were done with the application of distilled water only for experiment 2 and 3. The antagonistic biological control agents T2 and T9 were efficient in inhibiting the growth of Colletotrichum musae "in vitro", when analyzed "in vivo" did not have efficiency in the inhibition of the growth of the pathogen. Thermotherapy is a promising technique for the treatment of postharvest rot in banana fruits of 'Pacovan' cultivar, with the best efficiencies observed at 47ºC for 3 and 9 min, and 51º for 3 and           9 min.

RESUMO Sob condições de casa de vegetação foram avaliadas as concentrações de manipueira 25, 50 e 100% e dois períodos de imersão de 9 e 12 h, além da testemunha, no tratamento de rizóforos-semente de inhame naturalmente infectados por Scutellonema bradys e Pratylenchus coffeae. O percentual de brotação dos rizóforos observado aos três meses após o plantio foi de 100% em todos os tratamentos. Aos cinco meses, as concentrações de manipueira nos dois períodos de imersão (25% - 9 horas; 25% e 50% - 12 horas), apresentaram os melhores resultados em relação à testemunha, para as populações finais dos nematoides/g de casca de rizóforos.