01716naa a2200205 a 450000100080000000500110000800800410001910000210006024500960008126000090017752010750018665000160126165000160127765000300129365000130132370000210133670000160135770000170137377301200139011354802025-01-24 2024 bl uuuu u00u1 u #d1 aNICOLEITE, C. H. aDefoliation and leaf surgery for Sigatoka control in the subtropics.h[electronic resource] c2024 aThis study aimed to evaluate the effect of defoliation and leaf surgery for the Sigatoka disease control in ?Dwarf Prata? bananas (AAB). The treatments tested were: DEF. Defoliation (removal of leaves with >30% of severity); SUR. Surgery (removal of spotted parts with <15% severity); DS- Defoliation and surgery; NT- No treatments. The disease was quantified by the determination of gross sum (GS), Youngest leaf spotted (YLS) and severity in 5th leaf (5LS). Treatments were repeated at 30 days interval in an organic certified area in the South of Brazil from march/2016 to march/2017. Data were subjected to analysis of variance and Duncan test (5% error). Treatments were more effective in the spring and summer. SUR, DEF and their combination reduced gross sum by 40-69% and 5LS by 87% in the spring compared to NT. In summer significant differences of 21, 45 and 73% were observed for YLS, GS and 5LS, respectively. Considering the results, regardless the type of leaf removal applied the practice is important to control the Sigatoka disease in banana plants. adefoliation aphytosanity aPseudocercospora musicola aseverity1 aPERUCH, L. A. M.1 aS??NEGO, M.1 aZANIBONI, G. tIn: REUNI??N INTERNACIONAL ACORBAT , 24., 2024, Merida, Mexico. Anais... Merida, M??xico: Acorbat, 2024. p. 182-188