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


July 31, 2015

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. In typical forests, infestations ... READ MORE

Category: Agriculture, Forests, Home Landscapes, Natural Resources, Pests & Disease, Pests & Disease
Tags: Albert E. Mayfield, Bark Beetles, Curculionidae, Entomology And Nematology Department, Featured Creatures Collection, Jiri Hulcr, John L. Foltz
Figure 1. Adult female Xyleborus affinis. Credit: Jiri Hulcr, UF/IFAS

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


July 31, 2015

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 or injured trees and farms gardens of ... READ MORE

Category: Agriculture, Forests, Home Landscapes, Natural Resources, Pests & Disease, Pests & Disease
Tags: Ambrosia Beetles, Andrea Lucky, Curculionidae, Entomology And Nematology Department, Featured Creatures Collection, Jiri Hulcr, Lanette Sobel
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

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


July 31, 2015

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 may someday prove ... READ MORE

Category: Forests, Natural Resources
Tags: Entomology And Nematology Department, Featured Creatures Collection, Jiri Hulcr, You Li

Why is this tree leaking?


June 12, 2015

If you see sap coming out of a tree it could be caused by many different things. Damage to a tree trunk or limb can cause sap to leak out. This is natural wound protection for the tree. The sap comes out and covers up a wound to prevent plant ... READ MORE

Category: Agribusiness, Agriculture, Crops, Farm Management, Florida-Friendly Landscaping, Forests, Home Landscapes, Home Management, Horticulture, Natural Resources, Pests & Disease, Pests & Disease, UF/IFAS Extension
Tags: BugWeek, Entomology, FAQ, Insects, Trees

Pine Chlorosis: The Yellowing of Pine Trees


January 5, 2015

Post by Bob Mertens; Horticulture Program Specialist We’ve been receiving numerous inquiries here at the Extension office regarding the yellowing (chlorosis) and subsequent deaths of native Florida slash pines, most notably in and around ... READ MORE

Category: Agriculture, Forests, Home Landscapes, Horticulture, Pests & Disease, UF/IFAS, UF/IFAS Extension
Tags: Acidic, Beetles, Extension, IFAS, Pine, Soil, Trees, UF, Yellow Needles

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