Ian Stocks, Division of Plant Industry Ian Stocks, Taxonomic Entomologist Division of Plant...

Ian Stocks, Division of Plant Industry

Ian Stocks, Taxonomic EntomologistDivision of Plant Industry, Gainesville

UPDATE ON WHITEFLIES, SCALES AND MEALYBUGSNEW TO FLORIDA

35 speciesCaribbean and Central AmericaA. cocoisA. pulvinatus (CR- Bahamas)FLORIDA: dispersus, dugesii, rugioperculatushighly polyphagous, pestiferousparasitoids present, variable efficacy (0-100%)

Aleurodicus


A. rugioperculatus Pest Alert

Aleurodicus rugioperculatus: AleyrodidaeRugose spiraling whitefly (AKA gumbo-limbo spiraling whitefly)


submitted samples often just with egg spirals ’♀ s may oviposit on a wider host range than is suitable for developmentexamine a wider area to see if nymphs or pupae are presentin palms, esp. common along midribcontrol and biology research by Dr. C. Mannion, UF-TRECmassive quantities of honeydew, sooty mold and sticky waxpools, cars, decks and patios

Acalypha wilkesiana Musa sp.Adonidia merrillii Myrcianthes fragransAnnona sp. Myrica ceriferaAraucaria heterophylla Parthenocissus quinquefoliaBrassica rapa Persea americanaBucida buceras Phoenix roebeleniiBursera simaruba Pinanga coronataCalophyllum sp. Pithecellobium keyenseCalophyllum inophyllum Psidium guajavaCatharanthus roseus Quercus virginianaChrysobalanus icaco Rosa sp.Chrysophyllum oliviforme Sabal palmettoCoccothrinax sp. Sagittaria latifoliaCocos nucifera Schinus terebinthifoliusConocarpus erectus Sideroxylon salicifoliumCordyline fruticosa Sideroxylon foetidissimumDictyosperma album Simarouba glaucaDypsis lutescens Smilax auriculataDypsis decaryi Spondias sp.Eugenia axillaris Spondias purpureaEugenia uniflora Spondias mombinEugenia sp. Strelitzia nicolaiFicus carica Strelitzia reginaeHyophorbe verschaffeltii Syzygium cuminiMangifera indica Terminalia catappaManilkara roxburghiana Thespesia populneaManilkara zapota Veitchia arecina

Washingtonia robustaWodyetia bifurcataZeuxine strateumatica

DistibutionHosts (DPI Database) ; ~60 speciesBroward Co.Indian River Co.Miami-Dade Co. (75% of samples)Monroe Co. Palm Beach Co.Polk Co.

Aleurodicus rugioperculatus: AleyrodidaeRugose spiraling whitefly; gumbo-limbo spiraling whitefly


Vryburgia trionymoides: Pseudococcidaedescribed from Kenya in 1961not recorded again until found in California, now locally established, common in grow housesFlorida: 2005, 2009- big box retailers in S. Floridamajor infestations found in Spring, 2011

Nassau Co., Duval Co. (big box retailers )risk assessment: unknown, but can kill a succulent if left untreatedvery similar to citrus mealybug, co-occur (slight difference in body color, wax pattern)look CLOSELY in rosettes and near stem

Photo: Andrew Derksen, DPI


Photo: Lyle Buss, UF

Aloe ciliaris AloaceaeCrassula spp. CrassulaceaeDudleya farinosa CrassulaceaeEcheveria sp. CrassulaceaeGraptopetalum sp. CrassulaceaeSenecio crassissimus Asteraceae

Duval Co.Lake Co.Nassau Co. Palm Beach Co.Volusia Co.

Hosts

Distribution

Vryburgia trionymoides


Phenacoccus multicerarii: Pseudococcidaedescribed in 2007 from specimens collected in 1949 from Caracas, Venezuala found in a museum collection, unknown hostnot seen again until June, 2011, from multiple hosts at a retail nursery in Fernandina Beach (Nassau Co.)trace-back initiated, nursery in Orange County identified and subsequently verified recently collected specimens from Port Everglades

Aloaceae Aloe veraAsteraceae Pseudognaphalium obtusifoliumBegoniaceae Begonia sp.Convolvulaceae Ipomoea batatasDryopteridaceae Cyrtomium falcatumDryopteridaceae Polystichum sp.Ericaceae Rhododendron sp.Hydrangeaceae Hydrangea sp.Lamiaceae Plectranthus scutellarioidesLiliaceae Hosta sp.Melastomataceae Medinilla magnificaMoraceae Ficus pumilaPrimulaceae Lysimachia nummulariaSelaginellaceae Selaginella uncinataThelypteridaceae Thelypteris sp.

Hosts


Photo: Lisa Hassell, DPI

Photo: Ian Stocks, DPI

Phenacoccus multicerarii

3.5 to 4 mm longpale yellow- greylight dusting of powdery waxlateral filaments (wax protrusions along flank)ovisac (cottony mass with eggs/ crawlers)very similar to P. madeirensis, the madeira mealybug and P. solani complex (solani, solenopsis)worldwide, many Phenacoccus are very destructivenot shy- very visible on plant


Photo: Ian Stocks, DPIPhoto: Lisa Hassell, DPIPhoto: Lisa Hassell, DPI

Planococcus minor: Pseudococcidae. Passionvine mealybug

Old-world species, now found almost world-widepresent in Caribbean, S. America and C. America since 1980’ssevere pest of many plant species: USDA watch-list“Positively” identified in Florida in 2010found again in June 2011 at a nursery in Palm Beach Countyimpossible to distinguish between P. citri and P. minor in the fieldwill it be a pest? how widely distributed?will P. citri parasitoids/predators find it to be a suitable host?http://www.freshfromflorida.com/pi/pest_alerts/pdf/planococcus-minor.pdf


ovisac

lateral filaments

multiple-stage aggregations

Passionvine mealybug


Phalacrococcus howertoni (Coccidae) croton scale


Hodges and Hodgson, 2010. Florida Entomologist

http://www.freshfromflorida.com/pi/enpp/ento/coccoidea_coccidae.html

2008 2010

Miami-Dade Co.-57% of samplesCodiaeum variegatum-59% of samplesBursera simaruba-7% of samples88 plant speciesrecently found in carribeanpest of limited distribution-quarantined when in nurseriesupdated Pest Alert to be released soon

Brevard Co.Broward Co.Charlotte Co.Collier Co.Duval Co.Hernando Co.Highlands Co.Hillsborough Co.Indian River Co.Lee Co.Manatee Co.Marion Co.Martin Co.Monroe Co.Nassau Co.Okaloosa Co.Orange Co.Osceola Co.Palm Beach Co.Pasco Co.Pinellas Co.Polk Co.Putnam Co.Saint Lucie Co.Sarasota Co.Seminole Co.Suwannee Co.

Current distribution

Phalacrococcus howertoni croton scale


Ian Stocks, Division of Plant Industry Ian Stocks, Taxonomic Entomologist Division of Plant...

Documents

Transcript of Ian Stocks, Division of Plant Industry Ian Stocks, Taxonomic Entomologist Division of Plant...