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Category: Home Landscapes

Black Turpentine Beetle, Dendroctonus terebrans (Olivier) (Insecta: Coleoptera: Curculionidae: Scolytinae)

Figure 1. Dorsal view of an adult black turpentine beetle, Dendroctonus terebrans (Olivier). Its large size, trapezoidal pronotum, and rounded declivity distinguish it from all other bark beetles infesting pines in the southern United States. Credit: Adam Black and Jiri Hulcr, University of Florida

Black turpentine beetles bore into the inner bark of stressed or injured pines, where they breed and feed on phloem tissue. Adults are strongly attracted to volatile pine odors and readily breed in fresh stumps…. Read More

An ambrosia beetle Xyleborus affinis Eichhoff, 1868 (Insecta: Coleoptera: Curculionidae: Scolytinae)

Figure 1. Adult female Xyleborus affinis. Credit: Jiri Hulcr, UF/IFAS

Xyleborus affinis is one of the most widespread and common ambrosia beetles in the world. It is also very common in Florida. Like other ambrosia beetles, it bores tunnels into the xylem of weakened, cut… Read More

Dagger Nematode Xiphinema spp. (Cobb, 1913) Inglis, 1983 (Nematoda: Enoplea: Dorylaimia: Dorylaimina: Xiphinematinae)

Figure 9. Schematic diagram showing detailed morphological features of a dagger nematode, Xiphinema spp.

Dagger nematodes parasitize plants. They cause economic damage and death of host crops through feeding on the roots and by spreading viral mosaic and wilting diseases, but field studies have shown that some control measures… Read More

Skyflower: Hydrolea corymbosa

Skyflower

Skyflower is a native wetland plant that produces brilliant blue flowers and can be found throughout Florida.  This 4-page facts sheet details skyflower biology, distribution and habitat, propagation, and uses. Written by Lyn A. Gettys and… Read More

Contaminants in the Urban Environment: Dioxins

Figure 1. General structure of dioxins and the most toxic dioxin (TCDD) Credit: Yun-Ya Yang, UF/IFAS

Dioxins are among the most toxic chemicals on the earth. They are by-products of a number of human activities such as combustion of fuels and wastes containing polyvinyl chloride (PVC), chlorine bleaching of paper products,… Read More

Doveweed (Murdannia nudiflora) Control in Warm-Season Turfgrass Species

Doveweed is an aggressive, naturalized summer annual weed that rapidly invades warm-season turfgrass species, especially in residential lawns, and few herbicides can effectively control it. Because of these challenges, a well-designed management strategy is necessary… Read More

Tawny Crazy Ant

As of 2012, tawny crazy ants have invaded several areas of the southeastern United States, including 24 counties in Florida and parts of southeast Texas. The tawny crazy ant is considered a serious pest. This… Read More

Florida Carpenter Ants

Camponotus floridanus, Credit: Buss

Carpenter ants are in the genus Camponotus, in which up to over 900 species have been described worldwide. They get their common name, “carpenter ant,” because some species excavate nests in wood. Carpenter ants are… Read More

African Honey Bee: What You Need to Know

Figure 1. Exposed African bee nest on a tree limb.

African honey bees entered the United States in the early 1990s and have since spread throughout the Southwest and Southeast, including parts of Florida. Compared to European bees, African bees are highly aggressive when disturbed… Read More

Australian cockroach Periplaneta australasiae Fabricius (Insecta: Blattodea: Blattidae)

Figure 2. Australian cockroach, Periplaneta australasiae Fabricius nymphs feeding in a group. Credit: Lyle J. Buss, University of Florida

Australian cockroaches are the most common outdoor cockroach in southern Florida. Though they typically stay outdoors, Australian cockroaches may also venture inside and live among humans. This 4-page fact sheet covers the Australian cockroach’s distribution… Read More