Effect of fungicide and insecticide sprays on mango fruit setting and post-harvest rots.
Pordesimo A. N., Barredo F. C.
Author Affiliation: Coll. Agric., Univ. Philippines, Los Banos, College, Laguna, Philippines.
Philippine Phytopathology 12 : 51-59
Abstract : In a field test in Nov. 1971 on 45-yr-old trees of the cv. Carabao, fruit setting of smudged and irrigated mangoes was improved by applications of mancozeb + karathane + thiodan. In a separate trial fungicide sprays applied pre-bloom, bloom and post-bloom minimized the incidence of anthracnose (Colletotrichum gloeosporioides) [Glomerella cingulata] and Diplodia natalensis [Botryodiplodia theobromae]. In the natalensis. In the 1973 field trial on 8 to 10-yr-old grafted Carabao trees, fungicides and insecticides applied separately or in combination, as bloom sprays at weekly intervals, improved fruit setting. Mancozeb and Cu oxychloride were superior to captan, zineb or mancozeb + karathane. Spray applications with fungicides in combination with insecticides during flower initiation, nectar stage and fruit development did not show any marked effect on fruit setting in the 1974 field trials. The carry over protection of 3 applications against post-harvest rots was evident in reduced numbers of rotted fruits 2 weeks after harvest under room conditions.