Guava diseases—their symptoms, causes and management. Production of pectolytic and cellulolytic enzymes. Diseases 3. This disease can cause considerable postharvest losses and can affect young developing flowers and fruit. It has been reported in all guava-growing areas around the world where high rainfall and humidity are present. This is a pest of guava that affect guava plant yield and productivity. Apple Guava (light red fleshed) is moderately resistant to anthracnose. Misra, A.K., 2004. They are one of 150 species of Psidium, of which most are fruit bearing.Hardy the guava may be, but they do have their share of guava pest problems, most of which can be dealt with using natural pest control methods for guava trees. 31. Typical symptoms associated with this disease include distortion, defoliation, reduced growth and if severe, mortality. Diseases of Citrus 5-9 2. 1968. GUAVA DISEASES AND MANAGEMENT 93. practically constant but the sporulation is profuse in case of potassium nitrate and. The pathogen can affect foliage, young shoots, inflorescences and fruit of guava. Management Spraying the trees with Bordeaux mixture 1.0 % or copper oxychloride 0.2 % or Carbendazim 0.1% before the onset of monsoon reduces the disease incidence. Misra, A.K., Om Prakash and Pandey, B.K. Basic requirements Guava is mainly grown in the tropics and will tolerate temperatures between 15 and 45°C (59–113°F). Indian Phytopathology, 48: 86–89. Chibber, H.M. 1911. and Mathur, K. 1980. Management. Agro-ecosystem Analysis (AESA) based Integrated Pest Management (IPM) A. AESA B. Pervez Z, Alam MS, Islam MS, Ahmed NU, Mahmud MR (2018) First Report of Phytophthora Guava Fruit Rot in Bangladesh. Weeds B. Pest of Regional Significance 1. Anthracnose is the most commonly observed disease that affects both pre- and postharvest management of guava. J Plant Pathol Microbiol 9: 433. doi: 10.4172/2157-7471.1000433 Guava will grow optimally between 23 and 28°C (73–82°F) but established trees can tolerate short periods at -3 to -2°C (27-28°F) although temperatures below 15°C (60°F) can cause the tree to cease producing fruit. Diseases of Grapes 24-27 5. Guava trees are hardy, aggressive perennials native to tropical and subtropical America. Diseases of Guava 33-35 7. Some chemical changes in guava fruits infected by. The eggs usually take 6-7 days to jump into the larval stage. Distribution of guava wilt in relation to age, soil type, management practices and varieties grown in Haryana. Insect pests 2. This disease can cause considerable postharvest losses and can affect young developing flowers and fruit. Guava rust: Puccinia psidii Symptoms. Diseases of Apple 36-43 8. Diseases 3. Guava leaves also help in the management of diabetes mellitus, an endocrine disorder characterized by a prolonged increase in the blood sugar levels. If you observe root knot nematode damage in your sweetpotatoes, we strongly suggest contacting your local extension agent and sending samples to the NC State University Plant Disease and Insect Clinic or the NCDA Nematode Lab . Diseases of Mango 10-16 3. 30. Weeds II. Guava Diseases Caused by Fungi and Stramenopiles Anthracnose Anthracnose is the most commonly observed disease that affects both pre- and post-harvest management of guava. aspargin. Diseases of Banana 17-23 4. It has been reported in all guava-growing areas around the world Insect pests 2. Spray Mancozeb 0.25%. Diabetes usually presents signs and symptoms, which include weight gain, polyphagia (frequent eating), polydipsia (frequent drinking), and … Management recommendations are available in our sweetpotato root knot nematode fact sheet and previous alerts. Diseases of Pomegranate and Papaya 28-32 6. Guava - Plant description I. Pests A. Pests of National Significance 1. 81-119). 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