Sudden changes may stress plants and attract fruit flies and other pests. Symptoms: Sooty mould proliferates in abundance on the foliage of guava, subsisting on the honeydew secreted by scale insects, aphids, white flies and mealy bugs. The list … Subsequently, premature shedding and defoliation. [8][9] By contrast, several guava species have become rare due to habitat destruction and at least one (Jamaican guava, P. dumetorum), is already extinct. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Guava Pests PPT 3rd YEAR VEG. and scale insect ( Chloropulvinaria psidii ). Guava Shoot Borer (Microcolona technographa): It is a serious pest in the guava nursery. Insect pests 2. These are bark eating-caterpillar ( Indarbela spp. Agro-ecosystem Analysis (AESA) based Integrated Pest Management (IPM) A. AESA B. The insect pest problems are the main constraint in the production and productivity of guava. Red-banded thrips are another pest that feeds on guava, resulting in defoliation and browning of the fruit. Approximately 80 insect pests have been reported on guava, but only few of them are pests of regular occurrence and causing significant economic loss. [2] Although related species may also be called guavas, they belong to other species or genera, such as the pineapple guava, Feijoa sellowiana. No. The guava is subjected to attack by several kinds of pests and about 80 species of insects have been recorded on guava, but only a few of them have been recognized as a pest of regular occurrence and causing significant damage. [6], Guavas are cultivated in many tropical and subtropical countries. The plant may develop light yellow leaves and sag noticeably, prematurely shed fruits or defoliate entirely. 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. Psidium guajava (common guava, lemon guava) is a small tree in the myrtle family (), native to Mexico, Central America, the Caribbean and northern South America. Guavas are typical Myrtoideae, with tough dark leaves that are opposite, simple, elliptic to ovate and 5–15 centimetres (2.0–5.9 in) long. In Hawaii, strawberry guava (P. littorale) has become an aggressive invasive species threatening extinction to more than 100 other plant species. Diseases 3.             Identification of pest: Nymph - short glass like rods of wax along the sides of the body; Adult - Powdery white, active during early morning hours. Composition of fruit fly species in Pune region of Maharashtra and losses caused to guava crop in the region. Guava seed oil, which may be used for culinary or cosmetics products, is a source of beta carotene, vitamin A, vitamin C, copper, zinc and selenium,[citation needed] and is particularly rich in linoleic acid. Protein bait spray and some pesticides, such as dimethoate, may cause leaf burn in guava and other tropical trees. It damages the tender shoots. Other major producers were China and Thailand.[11]. Guava is a warm weather tree, suited to zones 9b through 11. Caribbean fruit fly (Anastrepha suspensa): The Caribbean fruit fly is the most important pest of guava in Florida. Guavas are rich in dietary fiber and vitamin C, with moderate levels of folic acid (nutrition table). Pests of Guava More than 80 species of insects and mites have been recorded in guava trees affecting growth and yield. Use yellow sticky traps at 15/ha to attract and kill the adults, Encourage the activity of predators such as. Research on the biology of this pest is scarce and no natural enemies have been registered. A drink may be made from an infusion of guava fruits and leaves, which in Brazil is called chá-de-goiabeira, i.e., "tea" of guava tree leaves, considered medicinal. Because of its high level of pectin, guavas are extensively used to make candies, preserves, jellies, jams, and marmalades (such as Brazilian goiabada and Colombian and Venezuelan bocadillo), and as a marmalade jam served on toast.[2]. It is also a suspected vector of mycoplasma disease, lethal yellowing in coconut. [16], Guavas are one of the most common hosts for fruit flies like A. suspensa, which lay their eggs in overripe or spoiled guavas. Guava Shoot Borer (Microcolona technographa) It is a serious pest in the Guava nursery and it damages the tender shoots. It is native of the Caribbean Islands and Central America. The fruits are many-seeded berries. [3], The term guava appears to have been derived from Arawak guayabo 'guava tree', via the Spanish guayaba. Egg period lasts for 5-8 days. Distribution and status In many countries, guava is eaten raw, typically cut into quarters or eaten like an apple; it is also eaten with a pinch of salt and pepper, cayenne powder or a mix of spices (masala). Among the more important are guava whitefly, red-banded thrips, guava fruit moth, Caribbean fruit fly, mealybugs and several species of scales. Appearance of light yellow foliage with loss of turgidity and epinasty. Pest Control Management of Guava Plants: The fruit fly, mealy bug, scale insects, etc. [7], Guavas are of interest to home growers in subtropical areas as one of the few tropical fruits that can grow to fruiting size in pots indoors. Guava wood is used for meat smoking in Hawaii, and is used at barbecue competitions across the United States. Honey dew secretion also leads to the development of sooty mould fungus. Sarwar (2006) reported mealy bugs, stink bug, red-banded thrips, guava moth, guava whitefly and scale insect are major insect pests of guava in Pakistan. Diseases 3. The infested shoots dry up which can be located from a distance by the presence of fine black growth on the plant leaves. Among the more important are guava whitefly, red-banded thrips, guava fruit moth, Caribbean fruit fly, mealybugs and several species of scales. [15], The composition of fatty acids in guava seed oil is presented in the following table:[citation needed], Since the 1950s, guavas – particularly the leaves – have been studied for their constituents, potential biological properties and history in folk medicine. Insect pests 2. The guava moth is a pest that is affecting the fledging feijoa export market in Northland and has the potential to threaten a large range of commercial crops as it moves down the country. Pupa stage x 6 m. x 6 m. ) tall, so it needs space to grow the most pest... 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