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Pink Hibiscus Mealybug (Maconellicoccus Hirsutus) Introduced: 2002 (Broward County) Seasonality: PHM Can Be Found Year- Round in Southern Florida

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Pink Hibiscus Mealybug (Maconellicoccus Hirsutus) Introduced: 2002 (Broward County) Seasonality: PHM Can Be Found Year- Round in Southern Florida Pink Hibiscus Mealybug (Maconellicoccus hirsutus) Introduced: 2002 (Broward County) Seasonality: PHM can be found year- round in southern Florida. Current Infestation: Pink hibiscus mealybug has been found in more than Hosts: Numerous tropical and 30 counties throughout Florida. subtropical fruits, vegetables, ornamental plants, and tropical forest trees. Description/Biology: The life cycle of Examples include hibiscus, citrus, sugar the pink hibiscus mealybug (PHM) is cane, annonas, guava, mango, okra, about 23-30 days. Females can lay up to sorrel, pigeon pea, peanut, grape vines, 600 eggs. Eggs are laid in a loosely corn, chrysanthemum, beans, cotton, woven white egg sac. The eggs are soybean, and many other plants. initially Hibiscus appears to be the preferred orange host. and then become Im portance: This mealybug has pink before devastated agricultural crops in many hatching. parts of the world. It can kill plants and Newly has the potential to be easily spread to hatched new locations. nymphs can walk considerable distances or be Dam age: The mealybug forms colonies picked up by wind currents and blown to on the host plant which can grow into new feeding sites. large masses of white, waxy deposits on branches, flower buds, fruits, leaves, and Adult female whole plants. Mealybug feeding results mealybugs in malformed leaf are about * and shoot growth, inch long (3 stunting, and mm), body occasionally death. color is pink and covered with a white, waxy secretion. A few other mealybug species look similar to PHM, however they usually do not cause severe plant responses. Commercial growers should consult an entomologist if PHM is suspected. The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. U.S. DEPARTMENT OF AGRICULTURE, COOPERATIVE EXTENSION SERVICE, UNIVERSITY OF FLORIDA, IFAS, FLORIDA A. & M. UNIVERSITY COOPERATIVE EXTENSION PROGRAM, AND BOARDS OF COUNTY COMMISSIONERS COOPERATING. Pink Hibiscus Mealybug (Maconellicoccus hirsutus) control this pest and not have a negative impact on these beneficial insects. Professional and Growers - If you are in an infested area, you should employ good sanitation, scouting and prevention methods. Isolate newly acquired plants until you are sure they do not have PHM. Consider a preventative spray program in infested areas with high risk crops such as hibiscus. Preventative treatments Managem ent: Biological control offers include foliar applications of bifenthrin (ie. the safest, most economical and long Talstar), acephate (ie. Orthene), term solution to PHM in non-commercial chlorpyrifos (ie. DuraGuard ME), areas. Parasitic wasps are being pyriproxyfen (Distance), buprofezin released into infested areas through the (Talus), neonicotinoids (ie. Flagship, efforts of State and Federal agencies. Marathon, Discus, Safari, TriStar), These parasites are horticultural oils, and insecticidal soaps. established and For the landscape, product choices may contribute to the include Merit and Allectus. If a nursery or control of this pest. stock dealer is found to be infested with These tiny wasps do PHM, it may be placed under quarantine. not attack plants, Destruction and/or pesticide treatment Animals, or people. are necessary to be released from quarantine. A predatory lady beetle, the mealybug destroyer W ebsites: (Cryptolaemus http://www.doacs.state.fl.us/ montrouzieri), is press/2002/06202002.html also commonly found feeding on http://www.aphis.usda.gov/oa/pubs/ PHM. Beetle phmpaler.pdf larvae actually resemble mealybugs, but http://www.mrec.ifas.ufl.edu/lso/ are generally larger and move faster. mealybugs.htm Homeowner - To reduce PHM, you can http://edis.ifas.ufl.edu/IN156 remove infested plant parts, place them Authors: into plastic bags, and discard so not to Adrian Hunsberger, UF/IFAS, Miami-Dade Extension infest other plants. Many insecticides will Kim Gabel, UF/IFAS, Monroe Extension kill natural enemies that come in contact Catharine Mannion, UF/IFAS, TREC Homestead Eileen Buss, UF/IFAS, Entomology Dept., Gainesville with the sprayed plant. Insecticidal soaps Lyle Buss, UF/IFAS, Entomology Dept., Gainesville or oils are less harmful to natural enemies. The use of imidacloprid (Bayer Photo Credits: UF/IFAS, Holly Glenn and APHIS, Dale Meyerdirk Advanced Tree & Shrub) may help August 2006 Disclaimer: The use of trade names in this publication is solely for the purpose of providing specific information. UF/IFAS does not guarantee or warranty the products named, and references to them in this publication does not signify our approval to the exclusion of other products of suitable composition. .
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