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Tag: Entomology and Nematology Department

Asian Horntail Eriotremex formosanus (Matsumura) (Insecta: Hymenoptera: Symphyta: Siricidae: Tremicinae)

Figure 3. Eriotremex formosanus (Matsumura). A- antenna. B- metatibial spur. Abdomen (C) and mesonotum (D) with long golden setae (hair-like projections). Credit: You Li, University of Florida

Since it was introduced to North America, the Asian woodwasp has become the most common wood wasp in Florida. It is not considered an economically important pest because it only attacks dying or dead trees, but the species… 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 targeting reduction in… 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 species infests buildings… 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 sometimes called bulldog… 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 and are more… Read More

How to Dissect Honey Bees (Apis mellifera L.) to Detect Tracheal Mites (Acarapis woodi Rennie)

Figure 10. Five tracheal mites visible in a dissected honey bee trachea (140× magnification).

Tracheal mites are parasites of the western honey bee and negatively impact the health and productivity of an infested colony. This 6-page fact sheet details the method of dissecting honey bees in order to diagnose tracheal mites. Written… 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 and habitat, biology,… Read More