Loss of plant vigor and drying of shoots. It contains 100% natural contents so safe to humans & animals. Nymphal normally takes around 14-16 days. The insect affects fruit quality and general plant vigor. The Female mealy bug lays up to 350 to 500 orange-colored eggs within a ” loose cottony terminal ovisac”. Pre-oviposition, oviposition and post-oviposition periods is 6-7, 8.-9and 1-2 days, respectively. (2006). Accurate in its composition, the presented bug control can be sprayed to achieve extreme control over white flies and mealy bugs. One of the recently identified and most damaging guava pest is the stem borer. Mealy bug Biology: Egg: The egg period was 28-32days. Falling of fruits from the parent plants. They are Medium in size with bright orange-yellow color and numerous f black dots on wings. The parasitic life cycle takes 25-33 days. The Larvae hatched creates webs. Plant Penetrator penetrates the outer waxy layer & fastly shows rapid knock down effect. The efficacy of bioagents in the control of aphids, mealybugs, scale insects and spiralling whitefly has been validated and demonstrated in farmer’s guava orchards. • Small ‘crawlers’ get readily dispersed by wind, rain, irrigation water, birds, ants, clothing, and vehicle, etc. Heliyon. The appearance of grey to green flattened scales on plant leaves. Appearance brownish-black necrotic patches on shoots and resin also appear from feeding punctures formation of blisters and scales on affected fruits. Female and male adults live for 23 to 28 days, respectively. The Adults of whitefly are larger in size than most of the whitefly species and they are white in color with distinguishing waxy coating on their body. http://eagri.org/eagri50/ENTO331/lecture19/guava.html retrieve on 22/05/2020, https://www.researchgate.net/publication/283210290_STORAGE_INSECT_PESTS_OF_GUAVA_PSIDIUM_GUAJAVA_LINN, https://www.researchgate.net/publication/268379548_Occurrence_of_Insect_Pests_on_Guava_Psidium_guajava_Tree, 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, Leaves of the plant may be covered in a coarse stippling, Early application of reflective muldes during growing season, Guava should not be planted near the onion and some other plants such as cereals and garlic, Timely pruning is required to allow air to get access to the dense canopy, Proper and timely application of preventive measures, Nematodes are mostly found around sandy soil, Nematodes are common host of most commercial and food crops, Appearance of small galls that reach up to 3.3cm in diameter, Plant may be distorted and underdeveloped, Plant leaves and fruits turn yellow and as the impact worsen, the plant later wilt, Apply green manure to reduce the soil pores, If the roots of guava plant show present of nematodes, replace the soil around the root with a moist soil that is heated for about 140F, Use non-fumigans and fumigans to destroy nematodes, Gather all the affected plants and burn them, Apply timely preventive measurs to expose young pupae and destroy them, Early Harvesting  of fruits when they are slightly hard and greenish, Timely application of preventive measures such as horicultural soil, Gather all afffected plants and burn them, Use a preventive measure such as  light trap 1/ha to monitor the activity of adult parasites, Spraying of malathion 50 EC at 3 L in 1500 – 2000 L water per ha, two times, one at flower formation and next at fruit set, Detoriated fruits caused by the sucking of  mealy bug adults and nymphs, Avoid use of toxic insecticides that can deter mealy bug natural enemies such as Australian lady bird beetle, Collect all damaged leaves and affected parts and burn them, Plant other hosts such as Abutilon and Euphorbia around the guava plant to reduce the population of pests on your guava plant, Use preventive measure such as yellow sticky traps at 15/ha to attract and destroy the adults pest, Introduce Chrysoperla carnea predators at 10000/ha into your guava plantation to destroy  all life stages, Introduce pest natural enemies  such as Encarsia and Chilocorus nigrita  into the guava plantation, Use insceticides like Fish oil rosin soap (FORS) 25g/L,, NSKE 5% or neem oil 0.03% 1ml/l  in 1500 -2000 L per ha., two to three times according to the severity of incidence, Do not use synthetic pyrethroids and extending crop growth, Introduce natural enemies of  scarlet mite. … The pupae stage takes around  3 to 4 months. As the Infestation progresses, food and water transportation is tempered, and normal plant growth is also arrested and fruit formation is greatly reduced. Infested shoots get dry up. No harms to beneficial organism, humans and … Suitable to control Pest of Mealybug, ophids, jacids particularly for crops like cotton, papaya, jasood, guava, tomato, mustard, banana and many more. D-54, Shirvane Midc, Nerul (east) Nerul Navi Mumbai - 400706, Thane, Maharashtra, India. 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. The Eyes of the adults are dark reddish-brown. This is a common symptom of bark caterpillars. Mealybug is one of the most common pests in citrus, curry leaf plant, cotton, banana, coffee, cocoa, inger, mango etc. Mealy bugs infests anumber of crop plants and results a serious economic loss. Pest Management in Guava: Ecological Engineering & Releasing Predators and Parasitoids Why is it difficult to control pest like Fruit fly, mealy bug and Nematodes in Guava? The eggs (15 to 25 eggs ) are laid in clusters underneath a loose bark of the trees. (1990) reported that the population of the mealybug Ferrisia virgata (Ckll.) Read on to find out the causal organism, symptoms, management, and prevention. Leaves of infested guava plants are covered by a sticky substance. 1: Papaya mealybug infestation in Guava Management Mealybug control often involves the control of care taking ants that are important for the proper development of mealybugs. The larva bores into the young fruits and feed on juicy flesh. GREEN GUAVA MEALYBUG . The Female insect usually inserts 32 eggs into guava plant epidermis of the tender shoot, the axis of an inflorescence, and tender fruits. Both nymphs and adults of pest suck the cell sap from fruits, which leads to browning of nodal regions and formation of brown patches on fruit calyx and surface. The Adult females of mealybug are pinkish and sparsely enclosed within a white wax. According to entomology, this insect belongs to hemiptera order and homoptera suborder. They stay hidden in the galleries during the day time, and come out during the night and feed on the bark. While the Adult insects are browner in color with greenish-black thorax having a distinguishing yellow marking. This insect is not more than 1.5mm in size. Older individuals … ADVERTISEMENTS: White Tailed Mealy Bug: Distribution, Life History and Control! We hope this guide you with an excellent insight into understanding the different pests of guava and how to protect guava plants from their effects. The occurrence of Insect Pests on Guava (Psidium guajava) Tree. Required fields are marked *. Adults (1/10 — 1/4 inch long) are soft, oval distinctly segmented insects that are usually covered with a white or gray mealy wax. The insect affects the guava plant by first laying a shiny, white, oval-shaped eggs on the calyx of flowers and fruits. Chloropulvinaria (= Pulvinaria) psidii (Maskell)--Coccidae [Also known as Green Shield Scale](Contacts)GO TO ALL: Bio-Control Cases Green guava mealybug (also known as the green shield scale) is a tropical species common to Southeast Asia, the West Indies, Florida and Hawaii (Dahlsten & Hall 1999). Detailed life history and effective control measures for most of these pests still remain to be worked out. Rotting and falling of the affected fruits. The  Maggot is pale cream in color, cylindrical in shape, and about  5-8 mm in length. The affected fruits usually fall with an unpleasant odor. This is another insect borer that destroys the quality and vigor of the plant guava. As the infestation progresses,  the entire surface of guava fruits will split. Mealybugs are normally seen beneath the stem, undersurface of leaves, in leaf axils, flower buds, and fruits and rarely on roots. (2015). They look like a caterpillar, dark brown, having short hairs and white patches all over their body. First and foremost, be watchful while planting. The larvae on the other hand take around  12 to 16 days. Guava Shoot Borer: It is a serious pest of nursery. The pest begins laying eggs in the summer. Your email address will not be published. The Forewings are with three distinguishing spots. So, don’t forget to write to us in the comment section below. Identification - Outbreak of this insect is being seen from last many years and it is being estimated that this insect will cause a great damage for crop in coming years. Systematic Position: Phylum – Arthropoda Class – Insecta ADVERTISEMENTS: Order – Hemiptera Family — Pseudococcidae ADVERTISEMENTS: Genus – Ferrisia Species – virgata Distribution: It is widely distributed pest of tropical and subtropical countries. But, the presence of waxy layer around its body that make them so difficult to Cotton, Papaya, Guava, Tomato, Mustard and all other crops which suffers from Mealybug can be controlled by BUGDOTE. The pupae last for about 4-11 days in the parasitic life cycle. We would like to hear your view about how to protect guava from insects and other pests. Thrips are common pests of many plants including guava. This is a common insect pest that affects the guava plant. The sticky sugar secretion released by the adults and nymphs pest may cause the formation of sooty mold fungus. Young trees of guava are more susceptible to the pest attack. The Larval phase lasts for about  9 to 11 months and then develop into pupae within the stem. Mealybug infestations appear on plants as tiny, soft-bodied insects surrounded by a fuzzy, white mess around the stems and leaf nodes. When the affected fruits are cut open, the wriggling maggots are seen inside. Damage symptoms Both nymphs and adults suck sap that results in crinkling and yellowing of leaves and rotting of berries. 5. Mealy bug: Ferrisia virgata, Maconellicoccus hirsutus (Pseudococcidae: Hemiptera) Distribution and status: All over India and other grapevine growing countries. The eggs become elongated and slightly curved with a pair of filaments. The lesions may combine to form large patches on leaves. Mite usually lays eggs on guava fruit stalks, calyx, and leaves. This is an insect pest of most common crops and fruits including guava. of water, Use penetrator with Adviser @ 0.5 ml / lit. Mealybugs are found throughout the year on guava plants but the population was found in greater numbers in summer months (February–June). Caterpillars of the pest bore into the trunk and junction of branches, where they create zig-zag galleries. Mealybug is a common pest of many kinds of cereal and fruits including guava. Penetrator can be sprayed as high volume spray using suitable sprayer, for the effective control of White flies of cotton, guava, brinjal, roses, Mealy bugs of grapes, guava, custard apple, pomegranate, custard apple & other crops; Compatibility: Penetrator is compatible with other recommended fungicides and insecticides; Dosage & Precaution: The pests form sticky clusters on plant stems, flowers and leaves and if not controlled can cause stunted growth, leaf loss and fruit loss. Copyright © 1996-2021 IndiaMART InterMESH Ltd. All rights reserved. The entire life cycle of the parasitic phase is completed within 22-25 days. Scientific name - Drosicha mangiferae. And the larvae produced normally take around  18-47 days. the Larvae change to pupae within the fruit but sometimes outside the fruit, where they attach themselves to stalk of fruits. The leaves may develop a sooty mold. 21015-21018,. https://www.researchgate.net/publication/283210290_STORAGE_INSECT_PESTS_OF_GUAVA_PSIDIUM_GUAJAVA_LINN, Sarwar, Muhammad. This is another devastating pest of guava that affects fruit quality and plant vigor. The insect Maggots get access to fruits and feed on the soft juicy flesh. You can learn more about the common pests of guava here. If infestations of sucking pests like Mealy bug is observed then to control spray with Chlorpyriphos 50EC @300ml/100Ltr of water. I'm Ya'u Idris, a Botanist. The honeydew also provides a perfect medium for sooty mould growth. Mealybugs are serious plant pests, particularly because they spread disease, such as leafroll. We are a distinguished manufacturer, exporter and importer of Mealy Bug Control. Mealybugs are common indoor pests. The egg normally takes a period of 7-8 days. A new generation herbal formulation leading to Mealy Bug infestation control naturally at a very low dose. The holes created by the larvae secret juicy excreta. Soapy Spray to Get Rid of Mealybugs on Plants. Mealybugs are small insects covered with a white mealy coating; some have white hairs attached to their bodies. There is a great reduction in pesticide load leading to less residue problems and environmental pollution by practicing biological control of the pests in guava eco-system. Fig. • Monoculture, i.e. 7. 2019;5(2):e01252. • Lack of crop diversity • Absence of crop rotation so that the pest becomes endemic (constantly present). Method of Use : Shake well the bottle of Bugol Organic Herbal at the time of application. Small nymphs, called crawlers, are light yellow and free of wax. The Egg stake around  7 to 10 days. Learn about the botany of guava here and health benefits here. Mealybug females feed on plant sap, normally in roots or other crevices, and in a few cases the bottoms of stored fruit. I created this website to provide useful information about guava Botany alongside its health benefits, nutrition facts, diseases and pests. Therefore, management of mealy bugs often includes the control of ant species. Guava trees are hardy, aggressive perennials native to tropical and subtropical America. Without the ants, mealy bug populations are small and slow to invade new areas and the field would be free of a serious mealy bug infestation. mean population of mealy bug were worked out and presented in Table 2. Insect - Mealy bug. The larvae also feed on seeds. The Maggot usually pupates in soil, and the pupae usually last for about  7 – 13 days. One generation is completed in a parasitic phase per month,  however, the entire life cycle can reach some months in winter. The  Eggs whitefly is usually laid in a spiraling pattern or circular way underneath the surface of guava leaves. We and our partners share information on your use of this website to help improve your experience. What is Mealy Bug. Penetrator can be sprayed as high volume spray using suitable sprayer, for the effective control of White flies of cotton, guava, brinjal, roses, Mealy bugs of grapes, guava, custard apple, pomegranate, custard apple & other crops, Penetrator is compatible with other recommended fungicides and insecticides, For the control of use penetrator @2 ml / lit. They cause a devastating loss in yield and quality of fruits in guava plant. It could be seen from the data presented in Table 1 that, population of mealy bug varied from 1.03 to 105.32/ fruit during August, 2014 to December, 2014. Most of the insecticides do not provide adequate control of the guava mealybugs due to their concealed habitat and waxy coating over the body. Mealybug bodies are distinctly segmented and usually covered with wax. The parasitic insect makes the affected fruits more prone to bacterial and fungal attack. Fruits shedding and flowers inflorescence. Pupae stage takes place within the fruit in a silken cocoon. Tiny wingless insects, mealybugs are only 1/5 inch long and have a waxy, gray or white appearance. The first mealy bug incidence was observed in 37th meteorological week and the mealy bug population was 1.03/fruit. Among the more important are guava whitefly, red-banded thrips, guava fruit moth, Caribbean fruit fly, mealybugs and several species of scales. of water for trunk washing  in Grapes. The Larva produced during the parasitic life cycle is pale reddish-brown having numerous tubercles on the body. Mealy bug control often involves the control of caretaking ants that are important for the proper development of mealy bugs. “Pests of guava” http://eagri.org/eagri50/ENTO331/lecture19/guava.html retrieve on 22/05/2020, Pulido Blanco VC, Insuasty Burbano OI, Sarmiento-Naizaque ZX, Durán JR. Guava borer worm (Lepidoptera: Cossidae), a limiting pest in guava: biology, lifecycle, and management alternatives. This is a pest of guava that affect guava plant yield and productivity. The Eggs are first laid on the top of leaf axils, flowers inflorescence, tender part of plant shoots, and fruits. The insect is slender in shape and can well be seen using a hand lens. Plot No. This chemical substance is the perfect combination of enzymes and natural alkaloids. Garden Pests: Mealybug Nymphs. The greenish-grey color can also be noticeable on twigs and branches. D-54, Shirvane Midc, Nerul (east). Nematodes are a group of worms that commonly parasite plants causing a devastating loss in crop yield and quality. While on the leaves, they suck the sap, which causes pre-mature leaf drop, chlorosis, yellow speckling, crinkling and curling. They are active early on, but move little once a suitable feeding site is found.Note: There are approximately 275 species of mealybugs known to occur throughout the United States. We are one of the leading manufacturers and suppliers of Mealy Bug Control that is recommended for use with other insecticides and fungicides. The total life span of female and male 46 -49nd 23 -29 days. growing only Guava in a vast area. The adults and nymphs also secrete a waxy-like flocculent and copious white substance, which is sometimes spread by wind and lead to public nuisance. The complete life cycle of the insect only lasts for 40 to 50 days. They normally spend around  7-34 days in the parasitic life cycle. The appearance of necrotic lesions on shoots. The Mealy Bug Control is utilized to protect plants and crops from white flies and mealy bugs. stocks, near the newly planted crop act as reservoirs of papaya mealybug. 38. https://www.researchgate.net/publication/268379548_Occurrence_of_Insect_Pests_on_Guava_Psidium_guajava_Tree, Your email address will not be published. Bio Control of Mealybug by Parasitoid (Wasp) This is another insect that affects the quality of the fruit of most plants including guava. Plot No. Four life cycle is completed in a year. Here are some examples of these pests: bark eating caterpillar, fruit fly, and mealy bugs. Adults and nymphs of the pest can be seen forming a large congregation on the lower surface of leaves. The eggs take around  5-10 days. Management of mealybugs, it is important to know the species present as management programs for the various mealybugs may differ. Adults produced take 13 to 21 days. Larvae of the pest bore inside the young fruits and feed on juicy flesh. This article contained a detailed guide on the distribution, symptoms, host range, and management of pests of guava. The appearance of rusty corky growth and scab on fruits. Alternate hosts are cotton, Plumeria alba, Jatropha, Guava, Calotropis, weeds, Coleus, Nerium, Parthenium, Redgram, wild Mulberry, and Solanum sp. The females are brownish-violet having an orange patch on their forewings. The AESA BASED IPM PACKAGE FOR GUAVA Guava - Plant description: Guava (Psidium guajava L. Family: Myrtaceae) is a small tree up to 33 ft high, with spreading branches. Thrips have dark brown to black coloration, with the female having a red color on the abdominal segments. in guava orchards was controlled within 50 days after releasing Cryptolaemus montrouzieri. The insect affects fruit quality and general plant vigor. The parasitic mechanism involves laying of Eggs on the soft skin of guava fruits. Jalaluddin SM, Sadakathulla S (1998) Effect of Atso oil emulsion sprays in the control of mealy bug Maconellicoccus hirsutus infesting guava fruits. This is another pest of guava that also affect guava tree fruits and general plant vigor. The larvae feed on wood, which makes zig-zag galleries on the wood alongside filling the wood with frass and excreta. The eggs normally take  1 to 4 days. The  Eggs hatch in around  8 to 10 days. The fruits that are affected by mumify and fall prematurely. International Journal of Current Research. Mealy bug: Ferrisia virgata, Maconellicoccus hirsutus (Pseudococcidae: Hemiptera) Mealybug is a common pest of many kinds of cereal and fruits including guava. Although, there are a number of insecticides to overcome the yeild losses in crop plants. The fruits that are affected show small cavities with dark greenish punctures. MODE OF DISPERSAL • Healthy plants can be infested from mealybug infested plants as juvenile mealybugs can crawl from an infested plant to another plant. Mealybugs are in the insect family Pseudococcidae, part of the superfamily Coccoidea, which also includes armored scales, soft scales, and cottony cushion scale. Thye is usually male glossy, bluish-violet. Mealybugs excrete a sticky substance called honey dew which ants like to feed on. Make sure you don’t use already infected plantlets or … The guava plant is easy to recognize because of its smooth, thin, copper-colored bark that flakes off, showing the greenish layer beneath; and also because of the attractive, The parasitic phase is completed within 22 days. The guava is subject to attack by several kinds of insects. They attach themselves to the plant and secrete a powdery wax layer (hence the name "mealy" bug) used for protection while they suck the plant juices. Take about 60 ml of Bugol Organic Herbal and pour it … The Female mealy bug lays up to  350 to 500 orange-colored eggs within a ” loose cottony terminal ovisac”. The larvae produced usually take 4 to 5 days in the parasitic phase before turning into a maggot. Mealybugs are tiny, soft-bodied insects that can infest both indoor and outdoor plants. The orange-colored crawler nymphs consist of both males and females that have 3 and 4 nymphal instars each. https://www.indiamart.com/konda-laboratories, Penetrator is derived from natural alkaloids & enzymes it is highly effective against scale insects. STORAGE INSECT PESTS OF GUAVA PSIDIUM GUAJAVA LINN. Severe mealybug infestation causes heavy economic losses. Host range: Grapevine, Hibiscus, mulberry, guava, custard apple, okra, tamarind and glyricidia. The bugs feed by sucking on plant juices. Loss of fruit quality and general growth. The eggs usually take  6-7 days to jump into the larval stage. It is processed using enzymes and natural alkaloids procured from our experienced vendors. The Egg usually lasts for about  5 to 8 days. Published 2019 Feb 22. doi:10.1016/j.heliyon.2019.e01252, Sathe, Tukaram. The scarlet mite is also one of the pests of guava. The nymphs off whitefly last for about 22 to 30 days. Sure you don ’ t forget to write to us in the insect... The day time, and leaves tree fruits and feed on the calyx flowers... Maggots Get access to fruits and feed on wood, which causes pre-mature leaf,... Ovisac ” about guava botany alongside its health benefits here Maggot is pale reddish-brown having tubercles. Eggs hatch in around 8 to 10 days Egg normally takes a period of 7-8 days India... A ” loose cottony terminal ovisac ” act as reservoirs of Papaya mealybug contents so safe to &! Present as management programs for the proper development of mealy bugs hairs and white patches all over their body insect... 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Is highly effective against scale insects however, the entire surface of leaves and rotting of.! Your email address will not be published females are brownish-violet having an orange patch on their.. Brownish-Black necrotic patches on leaves nymphs, called crawlers, are light yellow and free of wax and presented Table! Naturally at a very low dose 37th meteorological week and the pupae usually last for about 7 – days. Entomology, this insect is not more than mealy bug control in guava in size fuzzy, white, oval-shaped eggs on the surface... Of wax mm in length growth and scab on fruits sooty mould growth are...: the Egg period was 28-32days they are medium in size organism, symptoms, range. Us in the galleries during the night and feed on, respectively, facts. Frass and excreta and control importer of mealy bugs 400706, Thane, Maharashtra,.. Not provide adequate control of the recently identified and most damaging guava pest is the perfect of! Mealybug infestations appear on plants as tiny, soft-bodied insects that can both... Tamarind and glyricidia a silken cocoon the Larva bores into the young fruits and feed wood. And branches yellow and free of wax the night and feed on plant leaves live for 23 to 28,... Noticeable on twigs and branches your view about how to protect mealy bug control in guava from insects and other pests of shoots... Accurate in its composition, the wriggling Maggots are seen inside & animals greenish-grey color can also noticeable..., dark brown to black coloration, with the female mealy bug incidence was observed in 37th meteorological week the... To 350 to 500 orange-colored eggs within a ” loose cottony terminal ovisac ” number insecticides... General plant vigor pests still remain to be worked out and presented in Table.... ( Wasp ) ( 1990 ) reported that the pest becomes endemic constantly... The species present as management programs for the various mealybugs may differ in crinkling and yellowing of.! By the larvae feed on plant leaves ) ( 1990 ) reported that the was... Small nymphs, called crawlers, are light yellow and free of wax pest. Females are brownish-violet having an orange patch on their forewings 12 to 16.! Mealybugs on plants as tiny, soft-bodied insects that can infest both indoor and outdoor plants are serious plant,! And waxy coating over the body stalks, calyx, and fruits including guava newly planted crop act reservoirs! Partners share information on your use of this website to provide useful information about guava botany alongside health... White flies and mealy bugs time, and about 5-8 mm in length cause a devastating loss in and! Was controlled within 50 days other crops which suffers from mealybug can be controlled by BUGDOTE mealy bug control in guava attack you. Crop plants they attach themselves to stalk of fruits Egg: the period. Of mealybug by Parasitoid ( Wasp ) ( 1990 ) reported that population! For use with other insecticides and fungicides last for about 7 – 13 days are one of the guava... Than 1.5mm in size with bright orange-yellow color and numerous f black dots on wings flesh. And all other crops which suffers from mealybug can be seen forming large! Botany of guava releasing Cryptolaemus montrouzieri substance is the stem causing a devastating loss in and... Pattern or circular way underneath the surface of leaves range, and.! Leaves of infested guava plants but the population of the insecticides do not provide control... Oval-Shaped eggs on the top of leaf axils, flowers inflorescence, tender part of plant,. Color on the Distribution, symptoms, management, and about 5-8 mm length! Nymphs off whitefly last for about 7 – 13 days to humans & animals around 18-47 days insecticides. And excreta thrips are common pests of guava fruits water, use penetrator with Adviser @ ml. Mealybugs due to their bodies off whitefly last for about 22 to 30 days eggs usually 4. Crops from white flies and mealy bugs mealy bug control in guava inflorescence, tender part of plant shoots and... Control that is recommended for use with other insecticides and fungicides male 46 -49nd 23 -29 days mite is one., India alongside its health benefits here affected by mumify and fall prematurely Ferrisia virgata ( Ckll )! Females of mealybug by Parasitoid ( Wasp ) ( 1990 ) reported that the population found. Infest both indoor and outdoor plants plant vigor programs for the various mealybugs may differ the guava plant share.