Citrus Pest Quick Guide: Diaprepes Root Weevil (Diaprepes abbreviates Linnaeus)

Diaprepes adult

A one-page quick guide written by Lauren M. Diepenbrock and Jamie D. Burrow and published by the Entomology and Nematology Department presents the life cycle of the Diaprepes root weevil and provides several photos of the pest and the damage it causes to assist in identification.

Identification and Treatment of European Foulbrood in Honey Bee Colonies

Rope field test for the foulbroods, showing the larval or pupal

European foulbrood is a bacterial disease that affects Western honey bee larvae. It is a concern to beekeepers everywhere, though it is less serious than American foulbrood because it does not form spores, which means that it can be treated. This 7-page fact sheet written by Catherine M. Mueller, Cameron J. Jack, Ashley N. Mortensen, and Jamie Ellis and published by the UF/IFAS Entomology and Nematology Department describes the disease and explains how to identify it to help beekeepers manage their colonies effectively and prevent the spread of both American and European foulbrood.

Homeowner’s Guide to Selecting a Pest Control Service

A house fly perches on a soft drink can in this file photo by University of Florida entomologist Jerry Butler. The tiny white spots are flecks of powdered sugar from an earlier stroll on a jelly doughnut. In a new study, Butler and colleagues tested house flies captured outside restaurants and found they often carried harmful bacteria, including five species never associated with flies before.

While you can prevent pests from infesting your home, you might need the services of a professional to evict them if they have already moved in. The pest control industry in Florida is the largest in the nation. How do you choose the best pest control company for you? This 6-page fact sheet written by Faith Oi, James E. Davis, John M. Diaz, Sarah M. Ellis, Randall A. Cantrell, Nelly Nelson, and Judy Corbus and published by the UF/IFAS Entomology and Nematology Department is full of practical tips and advice to help you choose a reliable and effective pest control service to help you kick out any uninvited crawlies.

Elongate Hemlock Scale, an Exotic Scale Insect Pest of Christmas Trees and Other Conifers

Uncut Christmas trees at tree farm in Florida Marisol Amador

Elongate hemlock scale, Fiorinia externa Ferris (Hemiptera: Diaspididae), is an armored scale insect native to Japan and eastern Asia. This insect was first documented in the United States in 1908 in Queens, NY, and has since spread throughout most of the eastern United States. Though the primary hosts of the pest, hemlocks and firs, do not occur in Florida, there are concerns that elongate hemlock scale coming into the region on cut Christmas trees may disperse and establish on conifers that do occur in Florida. Of specific interest are two endangered species, Florida torreya (Torreya taxiflora) and Florida yew (Taxus floridana), which are native to a small region in northwestern Florida. Also of concern are Florida forestry species, Florida Christmas tree species, and species used for ornamental plantings in Florida. What can Florida do to protect its native conifers and farmed trees from the elongate hemlock scale? Find out in this 5-page fact sheet written by Adam Dale, Travis Birdsell, and Jill Sidebottom and published by the UF/IFAS Entomology and Nematology Department.

Using Nucs in Beekeeping Operations

An apiary full of nucs for sale. Photo by Jamie Ellis.
This 9-page illustrated fact sheet by James D. Ellis discusses the merits of using nucleus colonies, or nucs, which are smaller versions of full-sized Langstroth hives. The publication explains how to create and manage nucs and how to use them to control swarming, strengthen production colonies, re-queen hives, hive swarms, produce queens to sell to other beekeepers, and in general strengthen and expand a beekeeping operation. Published by the UF Department of Entomology and Nematology.

Nematode Management in Potatoes (Irish or White)

Plant-parasitic nematodes are a major pest on potatoes in Florida. Root-knot, sting, and stubby-root nematodes are the primary problems. Sampling is an important component of confirming nematode problems in a field. Nematode management relies heavily on chemical control (nematicides), but crop rotation and soil culture are important considerations as well. This 12-page fact sheet about nematode management in potatoes was written by Zane J. Grabau and J.W. Noling and published by the UF Department of Entomology and Nematology.

Develop Your Own Florida Olive IPM Plan

A healthy Arbequina olive grove in Volusia County, Florida.

To remain in optimal health and produce optimal yield, olive trees need excellent nutrition, the right irrigation, and good care to help them stay healthy so that they can withstand injury from pests and diseases. This 10-page fact sheet written by Morgan Byron, Eleanor Phillips, and Jennifer L. Gillett-Kaufman and published by the UF/IFAS Entomology and Nematology Department touches on some aspects of olive tree health that will help improve your trees' natural resistance to pests and pathogens. At the end of the guide is a monthly care and observation schedule to help you recognize when you should begin scouting for key pests and when important grove management decisions should be made.

Managing Plant Pests with Soaps

Many available products commonly called “soap."
Home gardeners and professionals frequently discuss the use of soap products to control plant pests. Limited and conflicting information on this topic has resulted in confusion and misuse of products. It is important to recognize that all soaps are not equal in safety or efficacy in plant-pest management. This 5-page fact sheet written by Matthew A. Borden and Adam G. Dale and published by the UF/IFAS Entomology and Nematology Department describes some of the different types of soaps and recommendations for proper, legal, and safe use of these products to manage pests.

Diaprepes Root Weevil on Southern Highbush Blueberry in Florida

Adult Diaprepes root weevil. Jorge Pena, UF/IFAS

Citrus root weevil, Diaprepes abbreviatus (Linnaeus) is a destructive pest on citrus trees. It is now becoming a significant pest on blueberry in central Florida, at times causing major damage to blueberry bushes that are more than two years old. This 3-page fact sheet written by Douglas A. Phillips, Oscar E. Liburd, and Larry W. Duncan and published by the UF/IFAS Entomology and Nematology Department will educate blueberry growers on how to monitor, identify, and control citrus root weevil.

Oxytetracycline hydrochloride (OTC-HCl) application for control of palm phytoplasmas

oxytetracycline hydrochloride

Phytoplasma diseases of palms are a major threat to the Florida nursery and landscaping industries. Historically, lethal yellowing has killed millions of coconut palms throughout the Caribbean and has been causing decline of over 30 species of palm in Florida since it was introduced to the state in the first half of the 20th century. In 2006, lethal bronzing disease was discovered on the west coast of Florida near Tampa. Currently, the only two management options available for control of phytoplasmas is an aggressive sampling strategy followed by consistent tree removal and injections of oxytetracycline hydrochloride, or OTC. This 2-page fact sheet written by Brian W. Bahder and Ericka E. Helmick and published by the UF/IFAS Entomology and Nematology Department seeks to provide a source of information and instruction on the injection of OTC into palm trunks.

Natural Products for Managing Landscape and Garden Pests in Florida

A brown lacewing larva, Micromus posticus, feeding on aphid pests of a rose bush. This soft-bodied predator would likely be killed by natural insecticides intended for the aphids.

Pest control professionals and homeowners throughout Florida and the southeastern US are seeking effective options that are safer for people and the environment than some conventional synthetic pesticides. There is also rising interest in organic gardening, which relies on natural pesticides. This 13-page fact sheet describes natural products for use in residential landscapes and gardens. Written by Matthew A. Borden, Eileen A. Buss, Sydney G. Park Brown, and Adam G. Dale, and published by the UF/IFAS Department of Entomology and Nematology, revised September 2018.

Managing Insecticide and Miticide Resistance in Florida Landscapes

Blissus insularis on St. Augustinegrass6 - Buss

Resistance to insecticide or miticide is a worry for landscape managers. Around the world, chinch bugs, leafminers, and other insect and mite pests have become resistant to dozens of insecticides, but with diligent insecticide resistance management, we can still maintain long-term effective chemical control. With few new modes of action coming onto the market, landscape managers need to be good stewards of existing products. Ultimately, resistance management means reducing exposure of pests to any one pesticide. Fortunately, there are many ways to prevent resistance and still control pests of ornamental plants and lawns, and this 6-page fact sheet written by Nicole Benda and Adam Dale and published by the UF/IFAS Entomology and Nematology Department explains how.

Susceptibility of Phytoseiulus persimilis and Neoseiulus californicus (Acari: Phytoseiidae) to Commonly Used Insecticides Approved for Managing Arthropod Pests in Florida Strawberries

The aim of this 9-page document is to inform Florida strawberry producers and Extension personnel on the compatibility of registered miticides and insecticides with commercially available predatory mites used as biological controls. Written by Braden Evans, Karol Krey, and Justin Renkema and published by the UF/IFAS Entomology and Nematology Department, August 2018.

Biology and Management of the Bermudagrass Mite, Eriophyes cynodoniensis

Characteristic tufting damage wrought by Bermudagrass mites to ‘Celebration’ bermudagrass shoots in a heavily infested golf course fairway.

The bermudagrass mite, Eriophyes cynodoniensis (Sayed) (Arthropoda: Arachnida: Eriophyidae), also known as the couch grass mite, can be a serious pest of bermudagrass in multiple high-maintenance turf systems such as sod production, athletic fields, and golf courses. Mites cause leaf and bud galls, which can lead to severe aesthetic damage and plant decline or death in high-maintenance areas with low tolerance for plant damage. In this 7-page fact sheet written by Pablo Agustin Boeri, Nicole D. Benda, J. Bryan Unruh, and Adam Dale and published by the UF/IFAs Entomology and Nematology Department, review the biology, identification, and management of the bermudagrass mite, and get specific management recommendations based on evidence from UF/IFAS research.

Pest Identification Guide: Solanum (Pepper) Whitefly, Aleurotrachelus trachoides

A pile of harvested bell peppers. UF/IFAS Photo by Tyler Jones

Considered an emerging pest in Florida, the solanum whitefly has been in the state since at least the 1960s. It eats pepper, eggplant, and tomato, as well as other food crops, ornamental plants, and weeds. Learn to identify the little pest with this handy, 2-page guide written by Nicole A. Casuso and Hugh A. Smith and published by the UF/IFAS Entomology and Nematology Department.

Caterpillar Pests of Tiki Huts and Other Thatched Structures

tiki hut, Stephen H. Brown, UF/IFAS

Two species of caterpillars that eat dried sabal palm leaves have been causing problems with thatched structures. If you’ve got a chickee or are planning to get one, you can take steps to protect the thatch. Learn how to identify and manage the two caterpillar pests in this 4-page fact sheet written by Stephen H. Brown and Lyle J. Buss and published by the UF/IFAS Entomology and Nematology Department.

Pest Identification Guide: Rugose Spiraling Whitefly, Aleurodicus rugioperculatus

rugose spiraling whitefly caused this sooty mold on this palm

Rugose spiraling whitefly (Aleurodicus rugioperculatus) feeds on over 118 hosts including coconut palm, gumbo limbo, and other fruits and ornamentals. It is a major pest in Florida. Learn to identify these tiny flies with this handy, 2-page guide written by Nicole A. Casuso and Hugh A. Smith and published by the UF/IFAS Entomology and Nematology Department.

Pest Identification Guide: Ficus Whitefly Singhiella simplex

emerging adult ficus whitefly Lyle Buss UF/IFAS

Ficuswhitefly (Singhiella simplex) is found on ficus species, especially weeping fig. It is a major pest in Florida. Learn to identify these tiny flies with this handy, 2-page guide written by Nicole A. Casuso and Hugh A. Smith and published by the UF/IFAS Entomology and Nematology Department.

Assessment-based Pest Management of German Cockroaches

public school pesticide kit

Assessment-based pest management emphasizes the importance of evaluating the intensity of a pest problem before treating the problem. This 10-page fact sheet written by F.M. Oi, E. Weeks, J. Jonovich, and D. Miller and published by the UF/IFAS Entomology and Nematology Department explains the strategy and includes a decision flow chart to provide an easy-to-follow overview on how a German cockroach problem can be assessed and successfully managed with specific guidance for each of four levels described in the fact sheet. The levels described constitute an escalation protocol that may approximate the tiers in a LEED (Leadership in Energy and Environmental Design) pest-management plan and may meet the requirements of some “green” pest-management certification programs, depending on level.

Ant Control in the Apiary

ghost ants J.L. Castner, UF/IFAS

Ants are one of a beekeeper’s most common pests, both in the apiary and in the honey house. Florida and the southeastern United States have a large and diverse ant fauna, with both native and exotic species. The vast majority of ant species have no impact on our bees or us. This 8-page fact sheet written by William H. Kern and published by the UF/IFAS Department of Entomology and Nematology describes the few pest species can cause serious problems and suggests ways to control the ants for healthier hives.