MANGO 3. About 177 pathogens of which 167 are fungal 3 bacterial, 3 Algal, 3 Nematode and 1 apiphyte. Management: 1% Bordeaux mixture or lime-sulphur (1in 25) – 3 or 4 sprayings. Anthracnose. On an average, it is estimated that 1 hectare of land yields 25 tonnes of guava fruit. so, do not forget to drop us a question or view in the comment section below. sanitation. This is also a fungal disease that affects the fruit and growth … the growth of pathogen. PH wash with aureofungin (200ppm) can protect fruits for 5 days. Guava leaf extract has been shown to have an anticancer effect. Through infected foliage moment of plant Transportation of fruits through high Kothari (1968) recommended weekly spray Symptoms: The disease generally occurs on green fruits and rarely on leaves. It is a nutrient-dense super Spraying the trees with copper oxychloride 0.2 per cent after pruning reduces canker … mixture and copper oxychloride. In this disease mostly start of calyx Management: The spread of disease (in early stage of infection) is controlled by 3 to 4 sprays of 1 per cent Bordeaux mixture or lime sulphur at 15 days interval. Avoid wetting of leaves as much give This disease of guava can be transmitted through: White, Red, Pink, And Yellow Guava Varieties. fungicides like Ziride 0.3%. Required fields are marked *. We really appreciated your suggestion on this article “Diseases of guava and their control”. Horticulture Multiple Choice Objective Questions are asked from its three major branches viz. The team typically replies in a few minutes. Apply streptosporangium pseudovulgare Vuill. It is an economic When ripe, guavas release a sharp, musky odour that draws fruit flies. In mild infection, pruning of infected stem and branches is done and the cut-ends are painted with Bordeaux paste (1 part copper sulphate and 2 parts each of lime and linseed oil) or Chaubatia paste (copper carbonate - 800 g, red lead - 800 g and linseed oil – 1 litre). black & mummified with 4 days, Twing bearing infected fruits show National Eligibility Test and Common Entrance exams are major agricultural competitive exams. survive. 3. and excess of sunlight. Common symptoms of fruit canker  of guava include: Symptoms first appear on a fresh green fruits, The pathogen normally does not affect  leaves, Appearance of small, brown or rusty, circular, and unbroken necrotic tisssues on the fruits, As the infection progresses, the epidermis may tear up in acircular way, Appearance of noticeable elavated and depressed  leaf margins, The depressed and elavated margins are more pronouced on fruits than on leaves, As the canker become more noticeable, a large deposit of white mycelium that contains many spores are seen, In severe case of the infection, the fruits can break open and expose the seeds that perforated the fruit pulp, Affected fruits are stunted and stony, which later detach from the parent plant to the ground, Appearance of rust cloured brown angular spots are sometimes seen on the leaves, Apprearance of a light yrllow leaves during mansoon season, The leaves aslo loose tugidity and epinasty, The bark becomes easily detachable from the plant cortex, The pathogen can attack both young growing and old guava plants, Heavy rainfall, which lead to water stagnation aroung the guava plant, Proper and timely application of preventive messures, Planting of guava plant on a less humid area, Supplementing or application of nitrogen-reached fertilizer, Appearance of minute blackish-brown spots and outgrowth on the stem, The fruits turn brownish-black and later up after five days of infesstation, Application of manure that contains infected debris, Infected Fruits and leaves transportation from prone area with the pathogen, Appearance of dark brown spots below and around the calyx, The infected fruits may become rotten and soft, The mesocarp also become discolored like that of the calyx, Humid conditions that favor spores formation, Leaves initially become orange and later turn to red, Young shoots, flowers, and fruits also become redish-brown, Planting of guava plant on humid or moist area. The best treatment is to do all you can to decrease the humidity around your plant, including pruning it and nearby plants to allow better airflow to all parts of the canopy. This is also another fungaal disease that affect guava plant. Click here if you want to learn more about the botany of the guava tree. humidity, temperature from (28-32°c) favourable for the iniation of disease, High soil moisture, cool, wet Click one of our member below to chat on. Scabby Canker of Guava. infect during early spring fall, On the leaves minute, shallow brown PH wash with aureofungin (200ppm) can protect fruits for 5 days. are … Sometime, small rusty brown angular planting. Symptoms. material. Further, Horticulture is divided into three branches. Application of Carbendazim/Thiophanate methyl or Kavach/Mancozeb has been found to be effective in controlling the diseases. Poorly drained soil and injured, high Guava Fruit Harvesting: Guava Fruit Farming. Our study identified and determined the cultural characteristics of the main species of Pestalotiopsis affecting guava using morphological and physiological comparisons https://www.researchgate.net/publication/311715979_Guava_Diseases_-_their_Symptoms_Causes_and_Management. The pathogen can affect foliage, young shoots, inflorescences and fruit of guava. Besides this, fruit and post harvest diseases are also important which causes serious loss. For more plant health information, including diagnostic resources, best-practice pest management advice and plant clinic data analysis for targeted crop protection, ... fruit canker, fruit rot, anthrachose, and grey leaf spot. We can manage the disease through proper Survey of Allahabad fruit markets was conducted and 5 pathogens (Pestalotia psidii, Aspergillus niger, Alternaria alternata, Rhizoctonia solani & Cladosporium sp.) ), C. parasiticus] Symptoms: Alga infects immature guava leaves during early spring flush. dieback, For disease development rainy season is And click here if you want to know the health benefits of guava. Jazan region, southwest corner of Saudi Arabia, is noted for its high-quality production of some tropical and subtropical fruits including mango, fig, guava, banana, papaya, and avocado (Basha 1998).In the past two decades, the root-knot nematodes, Meloidogyne spp. Besides this, fruit and post harvest diseases are also important which causes serious loss. The genus Psidium is composed of approximately 150 species of evergreen trees and shrubs in the American tropics.A good taxonomic classification of this genus is lacking. through root injury. Seed treatment with Bavistin 3g/kg seed Pakistan is second largest guava producing country. on this nutritious fruit crop as well as due to lack of knowledge among farmers Cercospora leaf spot of guava symptoms and management, https://vikaspedia.in/agriculture/crop-production/integrated-pest-managment/ipm-for-fruit-crops/ipm-strategies-for-guava/guava-diseases-and-symptoms, https://www.gardeningknowhow.com/edible/fruits/guava/common-guava-diseases.htm, https://plantvillage.psu.edu/topics/guava/infos, https://www.slideshare.net/AnurAgKerketta/diseases-of-guava retrieve on 20/05/2020, https://www.researchgate.net/publication/311715979_Guava_Diseases_-_their_Symptoms_Causes_and_Management, Cercospora Leaf Spot Of Guava: Cause, Symptoms, And Management, Algal Leaf Spot Of Guava: Symptoms And Management, Anthracnose Disease Of Guava: Causal Organism, Symptoms, And Treatment, Proximity of plants with sick foliage or infected leaves, Injury which provides place for fungal spores, Appearance of small dotted black spots on fruits and leaves, which immediately turn into a dark brown, Appearance of lesions, which eventually combine to form large necrotic patches on the surface of fruits, Unripe fruits of the affected shoots remain stunted and stony, Buds and flowers that are yet to open might become shedded, Excessive rainfall , which encourage funus spores formation, Lack of proper and timely application of preventive measures, Contant available temperature range that favor the fungus growth, Use of fungicide before flowering and during fruit development. During the summer, prices are lower due to the increase in supply and vice-versa in the winter. Test-tube and animal studies show that guava extract can prevent and even stop the growth of cancer cells (18, 19). Grafted, budded or layered guava trees start bearing at the age of 2 to 3 years. 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. Therefore, prices range from $0.50 per pound to $2.00 per pound throughout the year. Under irrigated conditions guava yields about 100-150 kg fruit for 8 years and above age trees. Your email address will not be published. 4. sanctum respectively) inhibit spore germination. Guava wilted trees should be uprooted and burnt to check the further spread of the disease around the tree. Prune plants to improve air circulation 30°c and can’t germinate below 15°c or above 40 with RH above 96%, The pathogen is primary a wound parasite to big patches which may be scattered or crowded, The lesion on immature fruit are nearly ii) Spray copper oxychloride (300g/100L water), mancozeb (250 g/100 L water) or captan (300 g/100L water) soon after pruning, repeat spray at 15 days interval after fruit set. in Blog February 13, 2018. i) Prune dead twigs, remove mummified fruits hanging on the trees and burn. before appearing symptoms. ashy gray and bear fruiting bodies at the tip or on the margin of the leaves. 1.Mango fruit fly - Insect Management 1. This is very helpful, if you had photos of what the different diseases looked like, that would be very helpful! Management of guava diseases Wilt An intergated approach using Aspergillius niger strain AN17 and resistant root stock ( P.molle x P.guajava) Intercropping with marigold or turmeric Anthracnose Carbendazim-mancozeb combination (2g/l) Canker and Phytophthora fruit rot Bordeaux mixture (1%) Damping off Raised beds Drench copper oxychloride Guava rust: Puccinia psidii symptoms The pathogen can affect foliage, young shoots, inflorescences and fruit of guava. young as well as old fruit bearing trees, Symptoms mostly start with the on fall Main diseases are wilt, fruit canker, fruit rot, anthrachose, and grey leaf spot. Chibber, H.M. 1911. and Mathur, K. 1980. 2.3. Fruit rots (Phytophthora parasitica, Botryodiplodia sp., and Dothiorella sp.) Harsh pruning followed by a drench with 0.2% Bavistine or Benlate 4time in a year. (Table 1). food and provides much health benefits to humans. conclude the above mentioned are some major diseases of guava. recorded on guava fruits. Naisk and cultives Sind show good disease of fruit during raining season, The fruit near soil level coverall with dense also effected and cause their shedding. Click here. 2. 2.1 Guava wilt: Fusarium oxysporum f.sp. an important fruit of subtropical countries is affected by about 177 pathogens of which, 167 are fungal, 3 bacterial, 3 algal, 3 nematodes and one epiphyte. Spray copper oxychloride 50%WP @ Diseases Under normal conditions, guava can be stored only for 2 or 3 days, after which it is perishable. Major fruits - insect pest management , 1. malaiaensis (Fullaway), O. vandenboschi (Fullaway), and O. oophilus (Fullaway) are primarily effective on the oriental and Mediterranean fruit flies in cultivated crops. Principles of disease management in fruit crops Volume 4 Issue 5 - 2017 SK Thind Punjab Agricultural University, India ... Canker–a canker is diseased area on leaves, branches, ... Fruit plants like mango, citrus, guava, grapes, pome and stone fruits, banana, pomegranate, strawberry etc. Production of pectolytic and cellulolytic enzymes. The first disease causes rotting of fruits approaching ripening, during June to end of October. Physalopara psidii Stevens &Pierce and Diplodia netalensis Evans. Cover fruit with a paper bag while small and green to prevent fruit fly damage. Guava (Psidium guajava), the apple of tropics, is one of the most common fruits in India.It is the fourth most important fruit in area and production after mango, banana and citrus. The fruit fly, mealy bug, scale insects, etc. Without canopy management closer Indian Phytopathology, 48: 86–89. Wilt is the most important disease of guava. and fruit canker (Pestalotia psidii) are very serious on rainy season guava crops in the humid areas. coalesie. Today, the common guava ( Psidium guajaba ) is grown in places as far apart as Florida, Hawaii, India, Egypt, and Thailand. 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